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  RELIABLE STEEL DISTRIBUTORS is one of the professional suppliers in India and abroad. Its fully supplying channels offer you the goods varying from the Stainless Steel, Carbon Steel, Alloy steel & Special Steel in form of ERW & Seamless Pipes, Sheets, Plates & Coils, Pipe Fittings, Round Bar, Flats, Angles, Channel and Wire, all under one roof to meet the clients requirement.

   API 5L - GRADE B PSL1, X42 PSL1, X46 PSL1, X52 PSL1, X56 PSL1, X60 PSL1, X65 PSL1, X70 PSL1, X80 PSL1, X100 PSL1

·        API 5L - GRADE B PSL2, X42 PSL2, X46 PSL2, X52 PSL2, X56 PSL2, X60 PSL2, X65 PSL2, X70 PSL2, X80 PSL2, X100 PSL2

·        ASTM A671/A671M GRADE CA 55, CB 60, CB 65, CB 70, CC 60, CC 65, CC 70

·        ASTM A672/A672M GRADE A 45, A450, A55, B60, B65, B70, C55, C60, C65, C70

·        ASTM A53/A53M GRADE A & B IN TYPE E,F & S.

·        ASTM A106/A106M GRADE A,B & C.

·        ASTM A333/A333M GRADE 1 & 6.

·        ASTM A335 GRADE P1, P5, P11, P12, P91

API 5L Grade B PSL1 Line Pipes
API 5L Grade B PSL2 Line Pipes 
API 5L Grade B PSL1 Sour Service Line Pipes
API 5L Grade B PSL2 Sour Service Line Pipes 
API 5L Grade B PSL1 NACE MR-0175 Line Pipes 
API 5L Grade B PSL2 NACE MR-0175 Line Pipes 
API 5L X42 PSL1 Line Pipes 
API 5L X42 PSL2 Line Pipes 
API 5L X42 PSL1 Sour Service Line Pipes 
API 5L X42 PSL2 Sour Service Line Pipes 
API 5L X42 PSL1 NACE MR-0175 Line Pipes 
API 5L X42 PSL2 NACE MR-0175 Line Pipes 
API 5L X46 PSL1 Line Pipes 
API 5L X46 PSL2 Line Pipes 
API 5L X46 PSL1 Sour Service Line Pipes 
API 5L X46 PSL2 Sour Service Line Pipes 
API 5L X46 PSL1 NACE MR-0175 Line Pipes 
API 5L X46 PSL2 NACE MR-0175 Line Pipes 
API 5L X52 PSL1 Line Pipes 
API 5L X52 PSL2 Line Pipes 
API 5L X52 PSL1 Sour Service Line Pipes 
API 5L X52 PSL2 Sour Service Line Pipes 
API 5L X52 PSL1 NACE MR-0175 Line Pipes 
API 5L X52 PSL2 NACE MR-0175 Line Pipes
API 5L X56 PSL1 Line Pipes 
API 5L X56 PSL2 Line Pipes
API 5L X56 PSL1 Sour Service Line Pipes 
API 5L X56 PSL2 Sour Service Line Pipes 
API 5L X56 PSL1 NACE MR-0175 Line Pipes 
API 5L X56 PSL2 NACE MR-0175 Line Pipes

API 5L X60 PSL1 Line Pipes 
API 5L X60 PSL2 Line Pipes 
API 5L X60 PSL1 Sour Service Line Pipes
API 5L X60 PSL2 Sour Service Line Pipes 
API 5L X60 PSL1 NACE MR-0175 Line Pipes 
API 5L X60 PSL2 NACE MR-0175 Line Pipes 
API 5L X65 PSL1 Line Pipes 
API 5L X65 PSL2 Line Pipes 
API 5L X65 PSL1 Sour Service Line Pipes 
API 5L X65 PSL2 Sour Service Line Pipes 
API 5L X65 PSL1 NACE MR-0175 Line Pipes 
API 5L X65 PSL2 NACE MR-0175 Line Pipes 
API 5L X70 PSL1 Line Pipes 
API 5L X70 PSL2 Line Pipes 
API 5L X70 PSL1 Sour Service Line Pipes 
API 5L X70 PSL2 Sour Service Line Pipes 
API 5L X70 PSL1 NACE MR-0175 Line Pipes 
API 5L X70 PSL2 NACE MR-0175 Line Pipes 
API 5L X80 PSL1 Line Pipes 
API 5L X80 PSL2 Line Pipes 
API 5L X80 PSL1 Sour Service Line Pipes 
API 5L X80 PSL2 Sour Service Line Pipes 
API 5L X80 PSL1 NACE MR-0175 Line Pipes 
API 5L X80 PSL2 NACE MR-0175 Line Pipes
API 5L X60 HIC TESTED
API 5L X65 HIC TESTED
API 5L X70 HIC TESTED
API 5L X60 SSIC TESTED
API 5L X65 SSIC TESTED
API 5L X70 SSIC TESTED

 A 333 technical specifications 

A333 Pipe Specifications

A/SA333

NPS 1/4" - 24"

Schedules 10 through 160, STD, XH and XXH

 

Sco

This specification covers nominpeal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

Material & Manufacture

The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.

Heat Treatment Requirements

All seamless and welded pipe shall be treated to control their microstructure by the following methods:

Normalizing per A 333/A 333M-05 section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3

Quenched and Tempered per A 333/A 333M - 05 section 4.2.2.1

Double Normalized and Tempered per A 333/A 333M - 05 section 4.2.2.2

Chemical Requirements

Composition, %

Element

Grade 1

Grade 3

Grade 6

Carbon, max

0.30

0.19

0.30

Manganese

0.40 - 1.06

0.31 - 0.64

0.29 - 1.06

Phosphorous, max

0.025

0.025

0.025

Sulfur, max

0.025

0.025

0.025

Silicon

0.18 -0.37

0.10 min

Nickel

3.18 - 3.82

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese.

When Grade 6 is ordered under this specification, supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted.

Tensile Requirements

The material shall conform to the requirements as proscribed:

Grade 1

Grade 3

Grade 6

psi

MPa

psi

MPa

psi

MPa

Tensile Strength, min

55,000

380

65,000

450

60,000

415

Yield Strength, min

30,000

205

35,000

240

35,000

240

Longitudinal

Transverse

Longitudinal

Transverse

Longitudinal

Transverse

Elongation in 2 in. or 50 mm, (or 4D), min, %

Basic minimum elongation for walls 5/16 in. [8 mm] and over in thickness, strip tests, and for all small sizes tested in full section

35

35

30

20

30

16.5

When the standard round 2-in. or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used

28

20

22

14

22

12

For strip tests, a deduction for each 1/32in. [0.8 mm] decrease in wall thickness below 5/16 in. [8 mm] from the basic minimum elongation of the following percentage

1.75

1.25

1.50

1.00

1.50

1.00

Elongation in 2 in. or 50 mm, min, %:

Wall Thickness

Grade 1

Grade 3

Grade 6

in.

mm

Longitudinal

Transverse

Longitudinal

Transverse

Longitudinal

Transverse

5/16 (0.312)

8

35

25

30

20

30

16

9/32 (.281)

7.2

33

24

28

19

28

15

1/4 (.250)

6.4

32

23

27

18

27

15

7/32 (.219)

5.6

30

26

26

3/16 (.188)

4.8

28

24

24

5/32 (.156)

4

26

22

22

1/8 (.125)

3.2

25

21

21

3/32 (.094)

2.4

23

20

20

1/16 (.063)

1.6

21

18

18

Impact Requirements

For Grades 1, 3 and 6, the notched-bar impact properties of each set of three impact specimens, including specimens for the welded joint in welded pipe with wall thicknesses of 0.120 in. [3 mm] and larger, shall not be less than the values prescribed:

Size of Specimen, min

Minimum Average Notched Bar Impact Value of Each Set of Three Specimens

Minimum Notched Bar Impact Value of One Specimen Only of a Set

Impact Temperature

ft-lbf

J

ft-lbf

J

Grade

Min Impact 
Test Temp

10 by 10

13

18

10

14

F

C

10 by 7.5

10

14

8

11

1

-50

-45

10 by 6.67

9

12

7

9

3

-150

-100

10 by 5

7

9

5

7

6

-50

-45

10 by 3.33

5

7

3

4

10 by 2.5

4

5

3

4

Mechanical
Testing

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test

For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.

For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Hydrostatic Test

Impact Test

One notched bar impact test, consisting of breaking three specimens shall be made from each heat represtented in a heat-treatment load on specimens taken from the finished pipe.

Lengths

Lengths required shall be specified on order.

If no definite lengths required, following practice applies:

Single Random -- 17' ~ 24' lengths

Double Random -- 36' ~ 44' lengths

Required Markings on 
Each Length

(On Tags attached to each Bundle in case of Bundled Pipe)

Markings will adhere to prescribed specifications in A 999/A999M and be: Rolled, Stamped, or Stenciled (Mfrs. Option)

In addition, markings will include:

Hot Finished or Cold Drawn

Manufacture Name

Specification / Grade

Hydro or NDE

Seamless or Welded

Schedule Number

the letters "LT" followed by the temperature at which the impact tests were made * and **

the letters "QT" when the pipe is furnished in the quenched and tempered condition

* except when a lower test temperature is required because of reduced specimen size, in which case, the higher impact test temperature applicable to a full size specimen would be marked

** when the size of the finished pipe is insufficient to obtain subsize impact specimens, the marking shall not included the letters "LT" followed by an indicated test temperature unless Supplementary Requirement S! is specified.


Referenced Documents

ASTM A 370 Test Methods and Definitions for Mechanical testing of Steel Products

ASTM A999/A 999M Specification for General requirements for Alloy and Stainless Steel Pipe.

ASTM A 671 Specification for General requirements for Alloy and Stainless Steel Pipe

ASTM E 23 Test Methods for Notched bar Impact testing of Metallic Materials

Order 
Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity

Feet, centimeters, or number of lengths

Name of material

Seamless or Welded Pipe

Grade

Grade 1, Grade 3, or Grade 6

Size

NPS or Outside Diameter and Schedule Number of Average Wall Thickness

Length

Specific or Random

End Finish

Optional Requirements

Heat Analysis Requirement

Stress Relieving

Repair by Welding

Other Temperatures for Impact Test

Hydrostatic Test or Nondestructive Electric Test

Test Report Required

Specification Designation and

Special Requirements or Exceptions to this Specification

A106 Pipe Specifications

A/SA106

NPS 1/4"- 30"

Schedules 10 through 160, STD, XH and XXH

Scope

Covers seamless carbon steel nominal wall pipe for high-temperature service, suitable for bending flanging and similar forming operations.

NPS 1-1/2" and under may be either hot finished or cold drawn. NPS 2" and larger shall be hot finished unless otherwise specified.

 

Process

Killed steel, with primary melting process being open-hearth, basic-oxygen, or electric-furnace, possible combined with separate degassing or refining.

Steel cast in ingots or strand cast is permissible.

Hot-finished pipe need not be heat treated.

Cold-drawn pipe shall be heat treated after the final cold draw pass.

 

Chemical Requirements

Grade A

Grade B

Grade C

Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%

Carbon max. %

0.25

0.30

0.35

Manganese %

0.27 to 0.93

0.29 to 1.06

0.29 to 1.06

Phosphorous, max. %

0.035

0.035

0.035

Sulfur, max. %

0.035

0.035

0.035

Silicon, min.%

0.10

0.10

0.10

Chrome, max. %

0.40

0.40

0.40

Copper, max. %

0.40

0.40

0.40

Molybdenum, max. %

0.15

0.15

0.15

Nickel, max. %

0.40

0.40

0.40

Vanadium, min.%

0.08

0.08

0.08

 

Permissible Variations in Wall Thickness

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in 

Weight of any length shall not vary more than 10% over and 3.5% under that specified.

NOTE -- NPS 4 and smaller -- weighed in lots. Larger sizes shall be weighed separately by length.

Weights per Foot

Permissible Variations in 
Outside 
Diameter

Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN Designator]

Over

Under

in.

mm

in.

mm

1/8 to 1-1/2 [6 to 40], incl

1/64 (0.015)

0.4

1/64 (0.015)

0.4

Over 1-1/2 to 4 [40 to 100], incl

1/32 (0.031)

0.8

1/32 (0.031)

0.8

Over 4 to 8 [100 to 200], incl

1/16 (0.062)

1.6

1/32 (0.031)

0.8

Over 8 to 18 [200 to 450], incl

3/32 (0.093)

2.4

1/32 (0.031)

0.8

Over 18 to 26 [450 to 650], incl

1/8 (0.125)

3.2

1/32 (0.031)

0.8

Over 26 to 34 [650 to 859], incl

5/32 (0.156)

4.0

1/32 (0.031)

0.8

Over 34 to 48 [850 to 1200], incl

3/16 (0.187)

4.8

1/32 (0.031)

0.8

Tensile Requirements

Seamless

Grade A

Grade B

Grade C

Tensile Strength, min., psi

48,000

60,000

70,000

Yield Strength, min., psi

30,000

35,000

40,000

Number of 
Tests Required

NPS

On One Length from Each Lot of

Tensile

5 and smaller

400 or less

6 and larger

200 or less

Bending

2 and smaller

400 or less

Flattening

2 through 5

400 or less

6 and over

200 or less

Hydrostatic 
Testing

Inspection test pressures produce a stress in the pipe wall equal to 60% of specified minimum yield strength (SMYS) at room temperature. Maximum Pressures are not to exceed 2500 psi for NPS3 and under 2800 psi for the larger sizes. Pressure is maintained for not less than 5 seconds.

Mechanical Tests Specified

Tensile Test -- NPS 8 and larger -- either transverse or longitudinal acceptable

Smaller than NPS 8 -- weighed in lots. Larger sizes -- by length.

Flattening Test -- NPS 2-1/2 and larger.

Bending Test (Cold) -- NPS 2 and under.

Degree of Bend

Diameter of Mandrel

For Normal A106 Uses

90

12 x nom dia. of pipe

For Close Coiling

180

8 x nom dia. of pipe

Lengths

Lengths required shall be specified on order. No "jointers" permitted unless otherwise specified.

If no definite lengths required, following practice applies:

Single Random -- 17' ~ 24' lengths

Double Random -- 36' ~ 44' lengths

Required Markings on Each Length
(On Tags attached to each Bundle in case of Bundled Pipe)

Rolled, Stamped, or Stenciled (Mfrs. Option)

Manufacturer's name or brand.

Length of pipe.

A106 A, A 106 B, A 106 C.

ANSI schedule number.

Hydrostatic test pressures and/or NDE;

Weight per foot (NPS 4 and larger)

or NH if neither is specified.

Additional "S" if tested supplementary requirements.

Referenced Documents

ASTM A 530/A 530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe

ASTM E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing

ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation

ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings

ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products

ASME B26.10M Welded and Seamless Wrought Steel Pipe

General Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity

Feet, centimeters, or number of lengths

Name of material

Seamless or Welded Pipe

Grade

Grade A, Grade B, or Grade C

Manufacture

Hot-finished or cold-drawn

Size

NPS or Outside Diameter and Schedule Number of Average Wall Thickness

Special outside diameter tolerance pipe

Inside diameter tolerance pipe, over 10 in ID

Length

Specific or random

Supplementary requirements

Test Report Required

Specification designation

Hydrostatic test

Special requirements

A53 Pipe Specifications

Specifications

A/SA53

NPS 1/4" - 30"

Schedules 10 through 160, STD, XH and XXH

Scope

Covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order.

Materials and Manufacture

The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.

Chemical 
Requirements

Type S 
(seamless)

Type E

Type F

(electric-
resistance welded)

(furnace-
welded pipe)

Grade A

Grade B

Grade A

Grade B

Grade A

Carbon max. %

0.25

0.30

0.25

0.30

0.3

Manganese %

0.95

1.2

0.95

1.2

1.2

Phosphorous, max. %

0.05

0.05

0.05

0.05

0.05

Sulfur, max. %

0.045

0.045

0.045

0.045

0.045

Copper, max.%

0.40

0.40

0.40

0.40

0.4

Nickel, max. %

0.40

0.40

0.40

0.40

0.4

Chromium, max. %

0.40

0.40

0.40

0.40

0.4

Molybdenum, max. %

0.15

0.15

0.15

0.15

0.15

Vanadium, max. %

0.08

0.08

0.08

0.08

0.08

Hot-Dipped 
Galvanizing

Sets standards for coating of pipe with zinc inside and outside by the hot-dipped process. Weight of coating must not average less than 1.8 oz. per square foot and not less than 1.6 oz. per square foot.

Permissible Variations in
Wall Thickness

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in
Weights per Foot

Plus or minus 10%

Permissible Variations in
Outside Diameter

Outside Diameter at any point shall not vary from standard specified more than:

For NPS 1 1/2 and Smaller Sizes

For NPS 2 and Larger Sizes

1/64"

1/32" under

1% over

1%under

Tensile Requirements

Seamless and Electric-resistance-welded

Continuous-Welded

Grade A

Grade B

Tensile Strength, min., psi

48,000

60,000

45,000

Yield Strength, min., psi

30,000

35,000

25,000

Number of 
Tests Required

Seamless and Electric-Resistance-Welded -- Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size.

Continuous-Weld -- Bending, flattening, tensile

NPS 1 1/2 & smaller

NPS 2 & larger

one / 25 tons

one / 50 tons

Hydrostatic 
Testing

Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

MECHANICAL TEST REQUIREMENT

Tensile Test -- Transverse required on ERW for NPS 8 and large.

Sending Test (Cold) -- STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.

Degree of Bend

Diameter of Mandrel

For Normal A53 Uses

90

12 x nom dia. of pipe

For Close Coiling

180

8 x nom dia. of pipe

Flattening Test -- NPS 2 and larger STD and XS. (Not required for XXS pipe.)

Lengths

Standard Weight

Single Random -- 16' - 22'. 5% may be jointers. If Plain Ends -- 5% may be 12' - 16'.

Double Random -- Shortest Length 22', minimum average for order 35'.

Extra Strong and Double Extra Strong

Single Random -- 12' -22'. 5% may be 6' - 12'.

Double Random (XS and lighter) -- Shortest Length 22', minimum average for order 35'.

Lengths longer than single random with wall thicknesses heavier than XS subject to negotiation.

Required Markings on Each Length

(On Tags attached to each Bundle in case of Bundled Pipe)

Rolled, Stamped, or Stenciled (Mfrs. Option)

Name brand of manufacturer

Kind of pipe, that is, Continuous Welded, Electric-Resistance-Welded A, Electric-Resistance-Welded B, Seamless A, Seamless B, XS for extra strong, XXS for double extra strong.

ASTM 53

Length of pipe

General Information

Couplings -- Applied handling tight. Couplings, 2" and smaller straight tapped, other sizes taper tapped.

Thread Protection -- Applied to pipe 4" and larger.

End Finish (unless otherwise specified) --

STD or XS, or wall thicknesses less than 0.500 in. (excluding XXS): Plain and beveled

All XXS and wall thicknesses over 0.500 in.: Plain end square cut.

 

A335 Pipe Specifications

A/SA335

NPS 1/4" - 24"

Schedules 40 through 160, STD, XH and XXH

Scope

This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding.

Material & Manufacture

 

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment Requirements

P5, P9, P11, and P22

Grade

Heat Treatment Type

Normalizing Temperature Range F [C]

Subcritical Annealing or Tempering 
Temperature Range F [C]

P5 (b,c)

Full or Isothermal Anneal

Normalize and Temper

*****

1250 [675]

Subcritical Anneal (P5c only)

*****

1325 - 1375 [715 - 745]

P9

Full or Isothermal Anneal

Normalize and Temper

*****

1250 [675]

P11

Full or Isothermal Anneal

Normalize and Temper

*****

1200 [650]

P22

Full or Isothermal Anneal

Normalize and Temper

*****

1250 [675]

P91

Normalize and Temper

1900-1975 [1040 - 1080]

1350-1470 [730 - 800]

Quench and Temper

1900-1975 [1040 - 1080]

1350-1470 [730 - 800]

Chemical Requirements

Grade

P-5

P-9

P-11

P-22

P-91

P-91 shall also include the following:

Element

UNS Designation

K41545

S50400

K11597

K21590

K91560

http://www.amerpipe.com/images/compPercentage.jpg

 

0.15 max

0.15 max

0.05 - 0.15

0.05 - 0.15

0.08 - 0.12

V at 0.18 - 0.25

 

0.30 - 0.60

0.30 - 0.60

0.30 - 0.60

0.30 - 0.60

0.30 - 0.60

N at 0.030 - 0.070

 

0.025

0.025

0.025

0.025

0.020

Ni at 0.40 max

 

0.025

0.025

0.025

0.025

0.010

Al at 0.02 max

 

0.50 max

0.25 - 1.00

0.50 - 1.00

0.50 max

0.20 -0.50

Cb at 0.06 - 0.10

 

4.00 - 6.00

8.00 - 10.00

1.00 - 1.50

1.90 - 2.60

8.00 - 9.50

Ti at 0.01 max

 

0.45 -0.65

0.90 - 1.10

0.44 - 0.65

0.87 - 1.13

0.85 - 1.05

Zr at 0.01 max

Tensile Requirements

Seamless

P-5

P-9

P-11

P-22

P-91

P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].

Tensile Strength, min., psi

ksi

60

60

60

60

85

MPa

415

415

415

415

585

Yield Strength, min., psi

ksi

30

30

30

30

60

MPa

205

205

205

205

415

Permissible Variation in Wall Thickness

NPS [DN] Designator

Tolerance, % from Specified

Over

Under

1/8 to 2 1/2 [6 to 65] incl., all t/D ratios

20.0%

12.5%

Above 2 1/2 [65], t/D < or = 5%

22.5%

12.5%

Above 2 1/2 [65], t/D > 5%

15.0%

12.5%

(t = Specified Wall Thickness; D = Specified Outside Diameter)

Elongation Requirements

Calculated Minimum Elongation Values

Elongation in 2 in. or 50 mm, min %

Wall Thickness

P5, P9, P11, P22

P91

in.

mm

Longitudinal

Transverse

Longitudinal

5/16 (0.312)

8

30

20

20

9/32 (0.281)

7.2

28

19

19

1/4 (0.250)

6.4

27

18

18

7/32 (0.219)

5.6

26

17

3/16 (0.188)

4.8

24

16

5/32 (0.156)

4

22

15

7/8 (0.125)

3.2

21

14

3/32 (0.094)

2.4

20

13

1/18 (0.062)

1.6

18

12

Permissible Variations in Outside Diameter

Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN] Designator

Over

Under

in.

mm

in.

mm

1/8 to 1 1/2 [6 to 40], incl.

1/64 (0.015)

0.40

1/64 (0.015)

0.40

Over 1 1/2 to 4 [40 to 100], incl.

1/32 (0.031)

0.79

1/32 (0.031)

0.79

Over 4 to 8 [100 to 200], incl.

1/16 (0.062)

1.59

1/32 (0.031)

0.79

Over 8 to 12 [200 to 300], incl.

3/32 (0.093)

2.38

1/32 (0.031)

0.79

Over 12 [300]

+/- 1% of the specified outside diameter

Mechanical 
Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test

For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.

For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Hardness Test:

P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].

Notes for Bend Test:

For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.

Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.

The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

The inside diameter of the bend shall be 1 inch [25 mm].

Hydrostatic Test

Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.

Required Markings on 
Each Length

(On Tags attached to each Bundle in case of Bundled Pipe)

Markings will adhere to prescribed specifications in A 999/A999M and be: Rolled, Stamped, or Stenciled (Mfrs. Option)

In addition, markings will include:

Length of pipe

Marking to indicate the test method(s)

Hydrostatic

Nondestructive

Marking

YES

NO

Test Pressure

NO

YES

NDE

NO

NO

NH

YES

YES

Test Pressure/NDE

Schedule Number

Heat Number or Manufacturer's number by which heat can be identified

An Additional Symbol "S" if the pipe conforms to any Supplementary Requirements

S1 - Product Analysis

S2 - Transverse Tension Test

S3 - Flattening Test

S4 - Metal Structure and Etching Tests

S5 - Photomicrographs

S6 - Photomicrographs for Individual Pieces

S7 - Alternative Heat Treatment - Grade P91

Pipe that has been weld repaired shall be marked "WR".

Reference Documents

ASTM A999/A 999M Specification for General requirements for Alloy and Stainless Steel Pipe.

ASTM E 213 Practice for Ultrasonic Examination of metal Pipe and Tubing

ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation

ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings

ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products

ASME B26.10M Welded and Seamless Wrought Steel Pipe

Ordering
Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity

Feet, meters, or number of lengths

Name of material

Seamless Alloy Steel Pipe

Grade

P5, P9, P11, P22, P91

Manufacture

Hot-finished or cold-drawn

Size using one of the following:

NPS and Schedule Number

Outside Diameter and Nominal Wall Thickness

Outside Diameter and Minimum Wall Thickness

Inside Diameter and Nominal Wall Thickness

Inside Diameter and Minimum Wall Thickness

Length

Specific or Random

 

Carbon Products

ASTM A53 Grade A, B
Size Range : 1/8" - 26" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A53 Gr A seamless, ASTM A53 Gr A ERW, ASTM A53 Gr B seamless, ASTM A53 Gr B ERW, ASTM A53 Grade A Furnace Welded Pipe, ASTM A53 Type S, ASTM A53 Type E, ASTM A53 Type F

ASTM A134 (Standard Specification for Pipe,Steel,Electric Fusion(ARC)- Welded(Size NPS 16 & Over) 
Size Range : 16" to 140” 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

ASTM A135 Grade A, Grade B (Standard Specification for Electric-Resistance-Welded Steel Pipe) 
Size Range : 2" to 30" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A135 Grade A, ASTM A135 Grade B
ASTM A139 Grade A, Grade B, Grade C, Grade D, Grade E (Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over)
Size Range : 4" to 140" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A139 Grade A, ASTM A139 Grade B, ASTM A139 Grade C, ASTM A139 Grade D, ASTM A139 Grade E,

ASTM A178 Grade A, Grade C, Grade D (Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes)
Size Ranges : 1/2" to 5" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A178 Grade A, ASTM A178 Grade C, ASTM A178 Grade D 

ASTM A179 (Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes)
Size Ranges : 1/8" to 3" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

ASTM A192 (Standard Specification for Seamless Carbon Steel Boiler Tubes for HIGH Pressure Service)
Size Ranges : ½” to 7”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

ASTM A210 (Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes)
Size Ranges : ½” to 5”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A210 Grade A-1, ASTM A210 Grade C
ASTM A214 (Standard Specification for Electric Resistance Welded Carbon Steel Heat Exchanger and Condenser Tubes)
Size Ranges : upto 3”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A214

ASTM A252 Grade 1, 2 & 3(Standard Specification for Welded Carbon and Seamless Steel Pipe Piles)
Size Ranges : 6” to 20”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A252 Grade 1, ASTM A252 Grade 2, ASTM A252 Grade 3
A333 Grade 1, 3, 4, 6, 7, 8, 9, 10 & 11 (Low Temperature Carbon Steel Seamless Pipe)
Size Ranges : 1/2" - 48" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades :- A333 Grade 1, A333 Grade 3, A333 Grade 4, A333 Grade 6, A333 Grade 7, A333 Grade 8, A333 Grade 9, A333 Grade 10, A333 Grade 11 


A334 Grade 1, 3, 4, 6, 7, 8, 9, 10 & 11 (Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service)
Size Ranges : 1/2" - 36" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades :- A334 Grade 1, A334 Grade 3, A334 Grade 4, A334 Grade 6, A334 Grade 7, A334 Grade 8, A334 Grade 9, A334 Grade 10, A334 Grade 11 

ASTM A369 FPA, FPB, FP1, FP2, FP5, FP9, FP11, FP12, FP21, FP22, FP91, FP92(Standard Specification for Carbon and Ferritic Alloy Steel Forged and Bored Pipe for High-Temperature Service)
Size Ranges : ½” to 48”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A369 Grade FPA, ASTM A369 Grade FPB, ASTM A369 Grade FP1, ASTM A369 Grade FP2, ASTM A369 Grade FP5, ASTM A369 Grade FP9, ASTM A369 Grade FP11, ASTM A369 Grade FP12, ASTM A369 Grade FP21, ASTM A369 Grade FP22, ASTM A369 Grade FP91, ASTM A369 Grade FP92
ASTM A381 Grade Y35, Y42, Y46, Y48, Y50, Y52, Y56, Y60, Y65(Standard Specification for Metal Arc Welded Steel Pipe For Use With High-Pressure Transmission Systems)
Size Ranges : 16” to 140”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A381 Grade Y35, ASTM A381 Grade Y42, ASTM A381 Grade Y46, ASTM A381 Grade Y48, ASTM A381 Grade Y50, ASTM A381 Grade Y52, ASTM A381 Grade Y52, ASTM A381 Grade Y56, ASTM A381 Grade Y60, ASTM A381 Grade Y65

ASTM A500 Grade A, Grade B, Grade C. Grade D(Standard Specification for Cold Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes)
Size Ranges : upto 1630 m(64”)
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A500 Grade A, ASTM A500 Grade B, ASTM A500 Grade C, ASTM A500 Grade D

ASTM A501 Grade A, Grade B, (Standard Specification for Hot Formed Welded and Seamless Carbon Steel Structural Tubing)
Size Ranges : ½” to 24”  
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A501 Grade A, ASTM A501 Grade B

ASTM A512 1010, 1015,1020, 1008, 1012, 1016, 1018, 1019, 1020, 1021, 1025, 1026, 1030, 1035, 1110, 1115, 1117 (Standard Specification for Cold-Drawn Buttweld Carbon Steel Mechanical Tubing)
Size Ranges : ½” to 24” 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A512 1008, ASTM A512 1010, ASTM A512 1012, ASTM A512 1015, ASTM A512 1018, ASTM A512 1019, ASTM A512 1020, ASTM A512 1021, ASTM A512 1025, ASTM A512 1026, ASTM A512 1030, ASTM A512 1110, ASTM A512 1115, ASTM A512 1117

ASTM A513 1010, 1015,1020, 1008,1009, 1012, 1016,1017, 1018, 1019, 1020, 1021,1022,1023,1024, 1025, 1026, 1027, 1030, 1035, 1040, 1050, 1060, 1340, 1524, 4118, 4130, 5130, 8620, 8630
(Standard Specification for Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing)
Size Ranges : ½” to 24” 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A513 1008, ASTM A513 1009, ASTM A513 1010, ASTM A513 1012, ASTM A513 1015, ASTM A513 1016, ASTM A513 1017, ASTM A513 1018, ASTM A513 1019, ASTM A513 1020, ASTM A513 1021, ASTM A513 1022, ASTM A513 1023, ASTM A513 1024, ASTM A513 1025, ASTM A513 1026, ASTM A513 1027, ASTM A513 1030, ASTM A513 1033, ASTM A513 1035, ASTM A513 1040, ASTM A513 1050, ASTM A513 1060, ASTM A513 1340, ASTM A513 1524, ASTM A513 4118, ASTM A513 4130, ASTM A513 4140, ASTM A513 5130, ASTM A513 8620, ASTM A513 8630

 

ASTM A523 Grade A, B (Standard Specification for Plain End Seamless and Electric Resistance Welded Steel Pipe for High Pressure Pipe-Type Cable Circuits)
Size Ranges : 4” to 12”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A523 Grade A, ASTM A523 Grade B

ASTM A524 Grade 1 & 2 (Standard Specification for Seamless Carbon Steel Pipe for Atmospheric and Lower Temperatures)
Size Ranges : 1/8” to 26”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A524 Grade 1, ASTM A524 Grade 2

ASTM A556 Grade A2, B2, C2 (Standard Specification for Seamless Cold Drawn Carbon Steel Feedwater Heater Tubes)
Size Ranges : 5/8” to 1¼”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A556 Grade A2, ASTM A556 Grade B2, ASTM A556 Grade C2

ASTM A587 (Standard Specification for Electric Resistance Welded Low Carbon Steel Pipe for The Chemical Industry)
Size Ranges : ½” to 10”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A587

ASTM A595 (Standard Specification for Steel Tubes, Low Carbon or High Strength Low Alloy, Tapered for Structural Use)
Size Ranges :  2 3/8” to 30”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A595 Grade A, ASTM A595 Grade B, ASTM A595 Grade C, Grade A HSLA SS, Grade A HSLAS Cl2, Grade HSLAS Cl2, Grade B HSLA SS, Grade B HSLAS Cl1, Grade B HSLAS Cl2, Grade C A606, Grade C 1588, Grade C A588/B, Grade C A588/K

ASTM A671 CA 55, CB 60, CB 65, CB 70, CC 60, CC 65, CC 70, CD 70, CD 80, CF 65, CF 70, CF 66, CF 71, CG 100, CH 100, CJ 101, CJ 102, CJ 103, CJ 104, CJ 105, CJ 106, CJ 107, CJ 108, CJ 109, CJ 110, CJ 111, CJ 112, CJ 113, CK 75, CP75 ( Standard Specification for Electric Fusion Welded Steel Pipe for Atmospheric and Lower Temperatures)
Size Ranges : 16” to 140”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : 

ASTM A672 A 45, A50, A 55, B 60, B 65, B 70, C55, C60, C65, C70, D 70, D80, H75, H80, J80, J90, J100, K75, K85, L65, L70, L75, N75 ( Standard Specification for Electric Fusion Welded Steel Pipe for High Pressure Service and Moderate Temperatures)
Size Ranges : 16” to 140”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : 

ASTM A787 Grade 1008, 1010, 1015, 1016, 1017, 1018, 1019, 1020, 1021( Standard Specification for Electric Resistance Welded Metallic Coated Carbon Steel mechanical Tubing)
Size Ranges : 1/2” to 15”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A787 1008, ASTM A787 1010, ASTM A787 1015, ASTM A787 1016, ASTM A787 1017, ASTM A787 1018, ASTM A787 1019, ASTM A787 1020, ASTM A787 1021

ASTM A795 Type E Grade A, Type E Grade B, Type F( Standard Specification for Black and Hot Dipped Zinc Coate(Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use)
Size Ranges : 1/2” to 10”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A795 Type E Grade A, ASTM A795 Type E Grade B, ASTM A795 Type F

ASTM A822 ( Standard Specification for Seamless Cold Drawn Carbon Steel Tubing For Hydraulic System Service)
Size Ranges : 1/8” to 3½”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A822

ASTM A984 Grade 35, 50, 60, 70, 80( Standard Specification for Steel Line Pipe, Black, Plain End Electric Resistance Welded)
Size Ranges : 1” to 26”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A984 Grade 35, ASTM A984 Grade 50, ASTM A984 Grade 60, ASTM A984 Grade 70, ASTM A984 Grade 80

ASTM A1005 Grade 35, 50, 60, 70, 80( Standard Specification for Steel Line Pipe, Black, Plain End Longitudinal and Helical Seam, Double Submerged Arc Welded)
Size Ranges : 16” to 140”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A1005 Grade 35, ASTM A1005 Grade 50, ASTM A1005 Grade 60, ASTM A1005 Grade 70, ASTM A1005 Grade 80

ASTM A1024 ( Standard Specification for Steel Line Pipe, Black, Plain End Seamless)
Size Ranges : 1” to 26”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A1024

ASTM A1037 Grade A,B( Standard Specification for Steel Line Pipe, Black, Plain End Seamless)
Size Ranges : 1” to 4”
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A1037 Grade A, ASTM A1037 Grade B

API 5L Grade B to API 5L X80 ( API Welded Line Pipe, API ERW PIPE, API LSAW/DSAW PIPE, API HSAW PIPE)
Size Ranges : 1/2" - 100" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : API 5L Grade B lsaw, API 5L X42 lsaw, API 5L X46 lsaw, API 5L X52 lsaw, API 5L X56 lsaw, API 5L X60 lsaw, API 5L X65 lsaw, API 5L X70 lsaw, API 5L X80 lsaw, 
                      API 5L Grade B erw, API 5L X42 erw, API 5L X46 erw, API 5L X52 erw, API 5L X56 erw, API 5L X60 erw, API 5L X65 erw, API 5L X70 erw, API 5L X80 erw,
                      API 5L Grade B hsaw, API 5L X42 hsaw, API 5L X46 hsaw, API 5L X52 hsaw, API 5L X56 hsaw, API 5L X60 hsaw, API 5L X65 hsaw, API 5L X70 hsaw, API 5L X80 hsaw


API5L Grade B X-42 X-46 X-52 X-56 X-60 X-65 X-70 X-80 DSAW/LSAW/SAW
Size Ranges : 26" - 100" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : API-5L Gr B, API-5L Gr X42, API-5L Gr X46, API-5L Gr X52, API-5L Gr X56, API-5L Gr X60, API-5L Gr X65, API-5L Gr X70, API-5L Gr X80
Grade bm psl1, X42m psl1, x46m psl1, x52 psl1, x56 psl1, x60 psl1, x65 psl1, x70 psl1, x80psl1
Grade bm psl2, X42m psl2, x46m psl2, x52 psl2, x56 psl2, x60 psl2, x65 psl2, x70 psl2, x80psl2

API 5L Grade B to API 5L X80 ( API Seamless Line Pipe)
Size Range : 1/2" - 48" 
Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : API 5L Grade B PSL1, API 5L X42 PSL1, API 5L X46 PSL1, API 5L X52 PSL1, API 5L X56 PSL1, API 5L X60 PSL1, API 5L X65 PSL1, API 5L X70 PSL1, API 5L X80 PSL1,
API 5L Grade B PSL2, API 5L X42 PSL2, API 5L X46 PSL2, API 5L X52 PSL2, API 5L X56 PSL2, API 5L X60 PSL2, API 5L X65 PSL2, API 5L X70 PSL2, API 5L X80 PSL2,

 

CARBON STEEL PIPES

Carbon Steel Pipes & Tubes
We have a large scale unit engaged in stocking and exporting carbon steel tubes, carbon steel pipes and carbon steel welded pipes, carbon steel welded tubes and electrogalvanized steel tubes/pipes. we supply for engineering purpose, ERW pipes for water, gas & sewerage, carbon steel tubes for idlers of belt conveyors, water wells and lancing pipes for various automotive & industrial applications


Description: Carbon Steel Pipes & Tubes
Carbon Steel Pipes & Tubes

 

 

Applications
Carbon Steel is used in the most critical engineering applications and also in certain applications in the automotive sector. In addition, some of the value-added Carbon Steel products include steel for LPG cylinders, API grade, corrosion resistant steel, critical structural application steel, boiler quality, auto grades, precision tubes and medium/high carbon grades, among others.

Carbon Steel Pipe
The term carbon steel pipe is quite broad in scope and can be used to describe a wide range of metal tubular goods whose main alloying element is carbon. Although many of the same manufacturing principles apply to both carbon steel pipe and various similar alloy tubular goods, the focus of this narrative will be on the manufacturing process of mild carbon steel pipe goods commonly used for oil and gas as well as water transmission, structural applications, general purpose casing, piling, and mechanical components.
Carbon steel pipe starts out by arriving at the pipe mill in the form of either a billet (basically a large solid steel bar) or a coil (imagine a roll of toilet paper made out of steel). Depending on the manufacturing method used by the mill, these billets or coils will be processed to yield the finished end product. We will examine the various manufacturing methods used to make carbon steel pipe, but first let's look at how the carbon steel got here in the first place.

RAW STEEL MANUFACTURING PROCESS
Humans have been melting iron ore through a process called smelting for thousands of years. Molten or semi-molten iron would be hammered (forged) or poured into their desired shapes and allowed to cool. People quickly discovered that the properties of the finished product (strength, ductility, longevity) could be controlled in many ways; manipulating cooling time and conditions or adding/removing certain media for example. Carbon steel was one such popular derivative of raw iron made by introducing elemental carbon into the smelting process in the form of charcoal. As useful as steel was, it was time and labor intensive to produce, thus making it generally a poor material for mass consumption. In the mid 19th century, the Bessemer process was patented where by molten pig iron (cheaply made and full of high carbon, silicon, and manganese impurities) is subject to blasts of oxygen which oxidize the impurities thus making them simple to remove from the molten steel. This method of removing excess elements was much easier and cheaper than adding alloying elements to iron, and is directly responsible for the industrial revolution and the beginning of the mass production of carbon steel. Today the technology has changed, but the same basic principles of the Bessemer Process are still the backbone for modern raw steel production.
Modern steel mills produce steel by either melting scrap metal or adding coke (pulverized coal with the hydrocarbons removed) to smelted iron ore. The molten metal is subject to a modern derivative of the Bessemer Process to remove undesirable elements, other desirable elements are then added (depending on the final desired properties of the steel), and then the steel is cast and cooled into which ever shape the customers desire. As mentioned prior, in the case of carbon steel pipe these casts are typically in the form of coils or billets.

TIME TO MAKE THE PIPE
Billets and coils are delivered to the pipe mill ready to be made into carbon steel pipe. Depending on the capabilities of the pipe mill and the end use of the final product, the casts will be formed into pipe by means of four distinct different manufacturing methods; seamless, electric resistance weld (ERW), double submerged arc weld (DSAW), or spiral weld.

SEAMLESS CARBON STEEL PIPE
Seamless carbon steel pipe has, as its name implies, no longitudinal weld seam. It is, in essence, one solid homogeneous piece of steel. A solid billet is simply heated and then stretched over a series of mandrels until the pipe has achieved its desired diameter and wall thickness. Typically seamless carbon steel pipe fourteen inches and greater in diameter are rolled from shells which expand the diameter and reduce the wall until the desired dimensions are achieved. Sizes smaller than fourteen inches in diameter are typically stretch reduced whereby the diameter is gradually reduced and the wall relatively increased via a series of rolls. There is also a cold forming process for seamless pipe production, but such manufacturing processes are typically reserved for different alloys. Being that there is no seam, seamless carbon steel pipe is typically used in high pressure applications. Common seamless specs include; API5LB, A106, A333

ELECTRIC RESISTANCE WELD (ERW)

Early carbon steel pipe producers employed a manufacturing method called butt-welding. The butt-welding process was quite elementary in that it merely rolled a piece of heated steel plate into tubular form and created a longitudinal weld through compression and direct heat. In 1922 the Fetz Moon Tube Company instituted the first continuous weld line where by rolled up coils of steel (again, imagine a toilet paper roll made of steel) could be unrolled, leveled, and continuously fed down a line of rolls which would slowly bend the steel into shape eventually to a point where the ends could be butt-welded. When the mill came to the end of a coil, they could simply weld it to the beginning of the next coil with little interruption to production. As industry called for tighter tolerances and better welds, the continuous butt-weld process gave way to electric resistance welding (ERW). ERW is quite similar to the continuous weld process in that coils of steel are leveled and fed down a line of forming rolls, but that is where the similarities end. During the ERW process the unrolled coils (skelp) are not heated and the longitudinal weld is created by way of an electric current. The weld is then electronically inspected for defects, normalized so as to maintain consistency with the rest of the steel, and cooled. At this point the pipe is sometimes resized and then cut, coated, and or tested to meet the desired specifications. ERW pipe typically holds much tighter tolerances and maintains surface and wall consistency much more than seamless carbon steel pipe. Common ERW specs include; API5LB, A53, and A500

DOUBLE SUBMERGED ARC WELD (DSAW)
The double submerged arc weld (DSAW) process is similar to that of the ERW process in that coils of carbon steel are unrolled in a continuous ribbon. As the DSAW method of manufacturing is typically used for larger diameter pipe, the method of roll forming the skelp is similar to but not exactly like that of ERW. DSAW pipe is typically either pyramid rolled (three angled OD rolls in the shape of a pyramid form the pipe) or rolled using the U-O-E process (skelp is first subject to a "U" shaped press, followed by a "O" shaped press). The most prominent difference between ERW and DSAW carbon steel pipe is the longitudinal weld. The DSAW arc weld is submerged in a flux media to keep the weld from being exposed to ambient contaminants. Also, both the OD and the ID of the pipe is welded, typically at separate times creating a situation where one weld consumes the other creating a higher quality weld. DSAW carbon steel pipe is easily distinguishable due to its prominent and consistent ID and OD weld seam. Common DSAW specs include; API5l, A252, and A139.

SPIRAL WELD
The most easily distinguishable manufacturing method for carbon steel pipe is spiral weld. In this process the weld is created in the exact same manner as that of DSAW, only the weld seam takes on a helical or spiral appearance due to the way the skelp is rolled to form. Just as in the case with the ERW and DSAW process, a continuous ribbon of skelp is leveled and sent through a series of rolls to form. In the case of the spiral weld process a simple three roll bend is typical and thus makes for faster, more efficient, and less costly manufacturing process. The spiral weld process also allows the mill to roll a much wider range of sizes than DSAW or ERW mills. Also, due to its axial symmetry, spiral weld carbon steel pipe has an inherent ability to maintain straightness. Common spiral weld specs include; API5LB and A252.

A53 Grade A, A53 Grade B
Size Range : 1/8" - 42" 

Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A53 Gr A seamless, ASTM A53 Gr A ERW, ASTM A53 Gr B seamless, ASTM A53 Gr B ERW
Keywords:- a53 grade a, a53 grade b, a53 gr a, a53 gr b, a53 erw pipe, a53 seamless pipe

ASTM A106 Grade A, Grade B, Grade C ( Standard Specification for Seamless Carbon Steel Pipe For High-Temperature Service)
Size Range : 1/8" - 42" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A106 Grade A, ASTM A106 Grade B, ASTM A106 Grade C
Keywords: a106 grade a, a106 grade b, a106 grade c, grade b, grade c, grade b seamless pipe, grade c seamless pipe, a106 grade c seamless pipe, a106 grade b seamless pipe

ASTM A135 Grade A, Grade B (Standard Specification for Electric-Resistance-Welded Steel Pipe) 
Size Range : 1/2" to 26" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A135 Grade A, ASTM A135 Grade B
Keywords: a135 grade a, a135 grade b, grade b erw pipe, erw pipe stock, a135 grade pipes, a135 erw pipes, erw pipes manufacturer

ASTM A139 Grade A, Grade B, Grade C, Grade D, Grade E (Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over)
Size Range : 4" to 26" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A139 Grade A, ASTM A139 Grade B, ASTM A139 Grade C, ASTM A139 Grade D, ASTM A139 Grade E
Keywords: a139 grade a, a139 grade b, a139 grade c, a139 grade d, a139 grade e, efw pipe, efw pipe manufacturer, erw pipe, carbon steel erw pipes, carbon steel efw pipes, carbon steel erw pipes

ASTM A178 Grade A, Grade C, Grade D (Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes)
Size Ranges : 1/2" to 26" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A178 Grade A, ASTM A178 Grade C, ASTM A178 Grade D 
Keywords: A178 Grade a, A178 Grade b, A178 Grade c, a178 grade pipes, super heater tubes, cmn tubes, carbon steel tubes, carbon steel seamless tubes, cs seamless tubes, cs erw tubes, carbon steel superheater tubes, carbon steel tube manufacturer

ASTM A179 (Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes)
Size Ranges : 1/2" to 26" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A179
Keywords:-  carbon steel cold drawn tubes, carbon steel cd tubes, cold drawn pipes, cold drawn tubes, carbon steel condenser tubes, condenser tubes manufacturer, a179 grade tubes, a179 pipe, a179 carbon steel pipe, a179 heat exchanger tube, heat exchanger pipe

ASTM A210 (Standard Specification for Seamless Medium -Carbon Steel Boiler and Superheater Tubes)
Size Ranges : 1/2" to 05" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades : ASTM A210 Grade A-1, ASTM A210 Grade C
Keywords:- a210 grade a-1, a210 grade c, seamless superheater tubes, seamless carbon steel boiler tubes, boiler & superheater tubes, heat exchanger tubes, heat exchanger grade a tubes, heat exchanger grade c tubes

 

A333 Grade 1, 3, 4, 6, 7, 8, 9, 10 & 11 (Low Temperature Carbon Steel Seamless Pipe)
Size Ranges : 1/2" - 36" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Grades :- A333 Grade 1, A333 Grade 3, A333 Grade 4, A333 Grade 6, A333 Grade 7, A333 Grade 8, A333 Grade 9, A333 Grade 10, A333 Grade 11

Keywords:- grade 6 pipes, grade 6 tubes, grade 6 pipes stock, a333 grade 6, a333 gr 6 pipes, a333 gr 6 tubes, low temperature pipes, low temperature tubes, Low Temperature Carbon Steel Seamless Pipe, Low Temperature Carbon Steel Seamless tubes, ltcs pipes, ltcs tubes

A334 Grade 1, 3, 4, 6, 7, 8, 9, 10 & 11 (Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service)
Size Ranges : 1/2" - 36" 
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH 
Grades :- A334 Grade 1, A334 Grade 3, A334 Grade 4, A334 Grade 6, A334 Grade 7, A334 Grade 8, A334 Grade 9, A334 Grade 10, A334 Grade 11
Keywords:- grade 6 erw pipes, grade 6 erw tubes, grade 6 ltcs pipes, carbon steel low temperature tubes, low temperature erw pipes, impact tested pipes, sour service pipes, hic tested erw pipes


API 5L Grade B to API 5L X80 ( API Seamless Line Pipe)
Size Range : 1/2" - 36" 
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH
Grades : API 5L Grade B PSL1, API 5L X42 PSL1, API 5L X46 PSL1, API 5L X52 PSL1, API 5L X56 PSL1, API 5L X60 PSL1, API 5L X65 PSL1, API 5L X70 PSL1, API 5L X80 PSL1,
                 API 5L Grade B PSL2, API 5L X42 PSL2, API 5L X46 PSL2, API 5L X52 PSL2, API 5L X56 PSL2, API 5L X60 PSL2, API 5L X65 PSL2, API 5L X70 PSL2, API 5L X80 PSL2
Keywords:- x42, x46, x52, x56, x60, x65, x70, x80, x42 seamless pipe, x46 seamless pipe, x52 seamless pipe, x56 seamless pipe, x60 seamless pipe, x65 seamless pipe, x70 seamless pipe, x80 seamless pipe, carbon steel x42 pipe, carbon steel x46 pipe, carbon steel x52 pipe, carbon steel x56 pipe, carbon steel x60 pipe, carbon steel x65 pipe, carbon steel x70 pipe, carbon steel x80 pipe, x42 grade pipe, x46 grade pipe, x52 grade pipe, x56 grade pipe,
x60 grade pipe, x65 grade pipe, x70 grade pipe, x80 grade pipe, seamless pipe grade x42, seamless pipe grade x46,
seamless pipe grade x52, seamless pipe grade x56, seamless pipe grade x60, seamless pipe grade x65, seamless pipe grade x70, seamless pipe grade x80

API 5L Grade B to API 5L X80 ( API Welded Line Pipe, API ERW PIPE, API LSAW/DSAW PIPE, API HSAW PIPE)
Size Ranges : 1/2" - 100" 
Schedules : API 5L Grade B lsaw, API 5L X42 lsaw, API 5L X46 lsaw, API 5L X52 lsaw, API 5L X56 lsaw, API 5L X60 lsaw, API 5L X65 lsaw, API 5L X70 lsaw, API 5L X80 lsaw, 
                      API 5L Grade B erw, API 5L X42 erw, API 5L X46 erw, API 5L X52 erw, API 5L X56 erw, API 5L X60 erw, API 5L X65 erw, API 5L X70 erw, API 5L X80 erw,
                      API 5L Grade B hsaw, API 5L X42 hsaw, API 5L X46 hsaw, API 5L X52 hsaw, API 5L X56 hsaw, API 5L X60 hsaw, API 5L X65 hsaw, API 5L X70 hsaw, API 5L X80 hsaw
Keywords:- x42 welded pipe, x46 welded pipe, x52 welded pipe, x56 welded pipe, x60 welded pipe, x65 welded pipe,
X70 welded pipe, x80 welded pipe, x42 erw pipe, x46 erw pipe, x52 erw pipe, x56 erw pipe, x60 erw pipe, x65 erw pipe, x70 erw pipe, x80 erw pipe, api erw pipes stock, api pipes supplier, api pipes manufacturer, api pipes stockiest, api pipes stock, line pipe, oil & gas pipeline, api pipe, api seamless pipe, api welded pipe, api erw pipe, api lsaw pipe, api dsaw pipe, api saw pipe, api grade x42, api grade x46, api grade x52, api grade x56, api grade x60, api grade x65, api grade x70, api grade steel, api pipe grade x42, api pipe grade x46, api pipe grade x52, api pipe grade x56, api pipe grade x60, api pipe grade x65, api pipe grade x70, api pipe grade x80

API5L Grade B X-42 X-46 X-52 X-56 X-60 X-65 X-70 X-80 DSAW/LSAW/SAW
Size Ranges : 26" - 100" 
Schedules : 10, 20, 30, Std, 40, 60, XS, 80, 100, 120, 160, XXS/XXH & heavier 
Grades : API-5L Gr B, API-5L Gr X42, API-5L Gr X46, API-5L Gr X52, API-5L Gr X56, API-5L Gr X60, API-5L Gr X65, API-5L Gr X70, API-5L Gr X80
                  Grade bm psl1, X42m psl1, x46m psl1, x52 psl1, x56 psl1, x60 psl1, x65 psl1, x70 psl1, x80psl1
                  Grade bm psl2, X42m psl2, x46m psl2, x52 psl2, x56 psl2, x60 psl2, x65 psl2, x70 psl2, x80psl2
Keywords:- x42m lsaw pipe, x46m lsaw pipe, x52m lsaw pipe, x56m lsaw pipe, x60m lsaw pipe, x65m lsaw pipe,

X70m lsaw pipe, x80m lsaw pipe, api saw pipe manufacturer, api sour service pipe, api hic pipe, api sour service pipe stock, api saw hic pipes, api hic pipes, api ssc pipes, hic tested api pipes, ssc tested api pipes, high tensile carbon steel pipes, 450 mpa seamless pipe,485 mpa seamless pipe, 415 mpa seamless pipe, 60 ksi seamless pipe, 65 ksi seamless pipe, 70 ksi seamless pipe, carbon steel spiral pipe, carbon steel hsaw pipe, carbon steel welded pipe, crbon steel api pipe

ASTM A671 CA55, CB60, CB65, CB70, CC60, CC65, CC70, CD70, CD80, CF65, CF70, CF66, CF71, CG100, CH100, CJ101, CJ102, CJ103, CJ104, CJ105, CJ106, CJ107, CJ108, CJ109, CJ110, CJ111, CJ112, CJ113, CK75, CP65, CP75 (Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temeratures)
Size:- 16” to 100”
Keywords:- a671 pipe, astm a671 gr cc60 specification, astm a671 gr cc60, astm a671 cc60, a671 cc60, spiral welded pipes, fusion welded pipe, pipe welded, weld steel pipe, spiral welded pipe, welded pipes, welded pipe distributor, welded steel tubing, welded steel pipe, welded pipe, spirally welded steel pipes, submerged arc welded pipe, welded steel tube, steel welded pipe, erw welded steel pipe, submerged arc welded pipes, a671 efw pipe, astm a671 gr cc65, a671 cc65, pipe a671-cc65, astm a671 cc65, steel pipework, steelpipe, steel elbows, tubular steel, flanges, a671 cb 70, astm a671 gr cc65, a671 cc65, pipe a671-cc65, astm a671 cc65, astm a671 gr cc60 specification, astm a671 cc60, a671 pipe, astm a671 gr cc60 astm a671, a671 cc60
ASTM A672 A 45, A 50, A 55, B 60, B 65, B 70, C 55, C 60, C 65, C 70, D 70, D80, H 75, H 80, J 80, J 90, J 100, K 75, K 85, L 65, L 70, L 75, N 75(Standard Specification for Electric-Fusion-Welded Steel Pipe for High Pressure Service at Moderate Temperatures)
Size:- 16” to 100”
Keywords:- a672 gr b60, astm a672 gr b60, astm a672 c60, a672 pipe, pipe a672, a672 c70, a672 c60, a672 b60, astm a672, efe pipe manufacturer, efw pipe, a672 pipe stockiest, a672 pipe Dubai, a672 pipe india, a672 pipe jebel ali, a672 pipe Europe, a672 pipe usa, a672 pipe Singapore, a672 pipe Australia, c60 pipe, c65 pipe, c70 pipe

Steel pipes for pipelines for gas and combustible fluids EN 10208 (available only from production)


EN 10208-1 pipes of requirements class A - manufacture process dependent on producer

application:  

distribution of combustible media with determined working pressure for gas engineering and petrochemical industry (previously DIN 2470-1 with DIN 1626/1629 and DVGW - Working Sheet G 260/1)

production method:   

- seamless: S
- seamed: EW electrical welding
                     BW continuous welding
                     SAW powder welding
                     COW combined welding

grade:  

1.0319

L 210 GA

RR StE 210.7

1.0458

L 235 GA

St 37.0

1.0459

L 245 GA

RR StE 240.7

1.0483

L 290 GA

St 44.0

1.0499

L 360 GA

St 52.0

outer diameter:  

Ø 33,7 up to 1.626 mm (seamless up to 660 mm)

wall thickness:  

up to 40 mm

pipe type and production running:  

see EN 10108-1 Table 1

diameter and ovality tolerance:  

see EN 10208-1 Table 6

wall thickness tolerance:  

see EN 10208-1 Table 7

max. value of radial joggle:  

see EN 10208-1 Table 10

max. value of fusion weld excedance:  

see EN 10208-1 Table 11

tests and requirements:  

see EN 10208-1 Table 12 i Table D.1

straightness:  

0,2 % along whole length, in places <mm/m

PE coating:  

EN 10285 or EN 10287 in 3-layer extrusion moulding or building up method

marking:  

plant punch, EN standard, S - steel grade without seam, W - welded, for inspection test certificate - customer's mark and identification number

 

Seamed steel pressure pipes EN 10217-1

from unalloyed steel with determined properties for normal temperatures (DIN 1626)

 

methods and production process, delivery state: see EN 10217-1 Table 1

application:  

according to DVGW, TRB, TRD and ADW standards
TR 1 without heat treatment or normalized or normalized weld area or normalizing rolled

grades: 

1.0107

P 195 TR 1

St 33

1.0254

P 235 TR 1

St 37.0

1.0258

P 265 TR 1

St 44.0

  welding method:  

- pressure gas welding
- HFI welding
- powder welding for longitudinal and spiral seams

outer diameter:  

Ø 10,2 up to 2.540 mm

wall thickness:  

up to 40 mm

trade length:  

6, 12 m, partly also 18 m (other acc. to agreement)

fixed length < 406,4:  

     6.000 mm  + 10 mm
     6.000 mm > 12.000 mm  + 15 mm
> 12.000 mm acc. to agreement

fixed length ≥ 406,4:  

     6.000 mm  + 25 mm
     6.000 > 12.000 mm  + 50 mm
> 12.000 mm acc. to agreement

dimensional tolerance:   

- outer diameter: ≤ 219,1 +/- 1,00 % lub +/- 0,5 mm - higher value each time
                            > 219,1 +/- 0,75% max +/- 6 mm - higher value each time
- wall thickness: +/- 10%, min +/- 0,3 mm and acc. to EN 10217-1 Table 6 - higher value each time

straightness:  

1,5 : 1.000 for whole pipe, in places 3 : 1.000 mm

fusion weld excedance:   


 

- butt weld: inside + 0,5 mm/+ 0,05 x WD rolled from outside
- electrically welded: inside 1,5 mm processed from outside
- powder welding (UP), SAW pipe: inside and outside < 12,5 mm WD: max. 3,5 mm
                                                                                       > 12,5 mm WD: max. 4,8 mm

ovality:  

< 406,4: as limit value DA
> 406,4: <2%

marking:  

plant punch, short name, welding method, EN standard, steel grade, for inspection test certificate - customer's mark and identification number

certificate:  

EN 10204 - 2.2, EN 10204 - 3.1.B lub 3.1C

Seamless steel pressure pipes EN 10216

from unalloyed or fine-grained steel with determined properties for normal temperatures EN 10216-1, EN 10216-3 (DIN 1629)

application:  

according to standards: DVGW, TRB, TRD i ADW

production method:  

TR 1 rolling forming or normalized, or normalizing rolled TR3 or normalized

grades:  

1.0107

P 195 TR 1

St 33

1.0254

P 235 TR 1

St 37.0

1.0258

P 265 TR 1

St 44.0

1.0562

P 355 N

St 52.0

outer diameter:  

Ø 10,2 up to 711 mm

wall thickness:  

up to 100 mm 

trade length:  

from 4 up to 7 m, or double length

fixed length:  

< 6.000 mm + 10 mm
   6.000 > 12.000 + 15 mm
> 12.000 - acc. to agreement

straightness:  

1,5 : 1.000 for whole pipe, in places 3 : 1.000

dimensional tolerance:   
   

- outer diameter: +/- 1% lub +/- 0,5 mm - higher value each time
- wall thickness: ≤ 219,1 DA: +/- 12,5 % min +/- 9,4 mm - higher value each time
- wall thickness > 219,2 DA: +/- 20 % min +/- 10% and acc. to EN 10216-1 Tab.6 or EN 10216-3 Tab. 9

certificate:  

EN 10204-2.2 lub EN 10204-3.1.B

from unalloyed and alloyed steel with determined properties for elevated temperature EN 10216-2 (DIN 17175)

application:  

boiler pipes for temperatures determined by grades, without determination of pressure level 
TC1 class – test class without ultrasounds 
TC2 class – test class with ultrasounds

grades:  

1.0348

P 195 GH

UH 1

1.0345

P 235 GH

St 35.8/H1

1.0425

P 265 GH

St 45.8

1.5415

16 Mo 3

15 Mo 3

1.7335

13 CrMo 4-5

13 CrMo 44

1.7380

10 CrMo 9-10

10 CrMo 910<

outer diameter:  

Ø 10,2 up to 711 mm

wall thickness:  

up to 100 mm

trade length:  

from 4 up to 7 m, or double length

fixed length:  

acc. to agreement

 

 

straightness:  

1,5 : 1.000 for whole pipe, in places 3 : 1.000 mm

dimensional tolerance:   

- outer diameter: +/- 1% or +/- 0,5 mm - higher value each time
- inner diameter: +/- 1% or +/- 2 mm - higher value each time
- wall thickness ≤ 219,1 DA: +/- 12,5% +/- 0,5 mm - higher value each time
- wall thickness > 219,1 DA: +/- 10 up to 20 %. 
other tolerances - see EN 10216-2 standards, Tables 7-11 

marking:  

plant punch, EN standard, steel grade, heat no., TC1 test class, for unalloyed steel - TC2 test class, consumer's mark, identification number

certificate:  

EN 10204 - 3.1.B

official regulations:

DVGW, guidelines TRD, TRB, standards ADW

Steel line pipes from structural general-purpose steel with and without seam acc. to EN 10224 (DIN 2460)

application:  

water conduction, also drinking water

production method:   

- without seam
- with seam (spiral or longitudinal)

grade:  

1.0252

L 235

St37.0

1.0419

L 355

St52.0

seamless tubes:   

- diameter: Ø 88,9 up to 508 mm
- thickness: up to 11 mm
- length: 5 up to 7 m or double length (other length – after agreement)

seamed tubes:   

- diameter: Ø 88,9 up to 2.020 mm
- thickness: up to 17,5 mm
- length: 6 i 12 m, according to agreement - up to 16 m

selected length:  

according to agreement

grade L235:  

certificate 2.2
V = 0,9
DN 80 = 63 bars
from DN 100 reduced to 16 bars

grade L235:  

certification 3.1.B
V = 1,0
DN 80 = 100 bars
from DN 100 reduced to 20 bars

grade L355:  

certification 3.1.B
V = 1,0
DN 80 = 125 bars
from DN 100 reduced to 32 bars

certificate:  

EN 10204-2.2 or EN 10204-3.1.B

marking:  

producer's mark, for 3.1.B: user's mark and identification number

Seamed and seamless threaded steel line pipes EN 10255

(DIN 2440) - medium-heavy pipes
(DIN 2241) - heavy pipes

application:  

fluid media with pressure up to 25 bars, gas media and air with pressure up to 10 bars

 

grade:   

1.0035            L 195               (St 33)

 

seamless pipe:   

- diameter: Ø 1/4” up to 6” 
- length:  6 m (other - acc. to agreement)

 

seamed pipe:  

- diameter: Ø 1/4” up to 6” 
- length:   6 m ( for diameter 1” ÷ 2”:  7 m 7.5 m 8 m)

 

pipe length deviation:   

- seamless: +/- 1 m
- seamed: +150 mm / - 50 mm

 

wall thickness deviation:  

- 12,5 %

 

weight deviation:  

+/- 10% for single pipe
+/- 7,5% for cargo ≥ 10 tons

 

leaktightness test:  

pressure test with cold water with pressure of 50 bars or eddy currents test

 

properties during cold bending:  

≤ 1” up to 3 x D
> 1” ≤ 2” up to 3,5 x D

 

galvanizing:   

- WN 10240: layer thickness - min 56 μm/400 g/m2
- drinking water A1

 

marking:   

- black: material marking at pipe end
- galvanized: in the normal course with producer’s and material mark
- drinking water: additionally with EN 10240 A1

 

certificate:  

test report EN 10204 - 2.2

Seamed cold-rolled structural pipes EN 10219

 

application:

steel structures, machine, vehicle and equipment building, agricultural machinery

 

production method:

electric resistance welded without heat treatment, non-annealed fusion weld (annealing - after special agreement)

from unalloyed steel
(DIN 17120)

grade:  

1.0039

S 235 JRH

R St 37-2

1.0149

S 275 JOH

St 44-2

1.0138

S 275 J2H

St 44-3 N

1.0547

S 355 JOH

St 52-3 U

1.0567

S 355 J2H

St 52-3 N

from unalloyed steel 
(DIN 59411)

grade:  

1.0493

S 275 NH

StE 285 N

1.0497

S 275 NLH

T StE 285 N

1.0539

S 355 NH

StE 355 N

1 0549

S 355 NLH

T StE 355 N

1.8953

S 460 NH

StE 460 N

1 8956

S 460 NLH

T StE 460 N

1.8843

S 375 MH

-

1.8844

S 275 MLH

-

1.8845

S 355 MH

-

1.8846

S 355 MLH

-

1.8847

S 420 MH

-

1.8848

S 420 MLH

-

1.8849

S 460 MH

-

1.8850

S 460 MLH

-

 

outer diameter:  

21,3 up to 1.219,0 mm

 

wall thickness:  

up to 30 mm

 

trade length:  

from 6 up to 15 m, special length - 18 m

 

fixed length:  

acc. to agreement

 

straightness:  

0,2% along whole length

 

dimensional tolerance:   

outer diameter: +/- 1%, min +/- 0,5 mm, max +/- 10 mm
wall thickness:
- for outer diameter ≤ 406,4 mm: wall thickness ≤ 5 mm: +/- 10%
                                                     wall thickness > 5 mm: +/- 0,5 mm
- for outer diameter > 406,4 mm: +/- 10 %, max +/- 2 mm

 

ovality:  

2 % with D/WD ratio max = 100

 

marking:  

plant punch, EN standard, steel grade as steel or colour punch

 

certificates for quality group:   

JR and JO: EN 10204 - 2.2, EN 10204 - 3.1B

 

certificates for quality group:   

J2 + fine-grained: EN 10204 - 3.1.B or 3.1C

Seamed and seamless hot-rolled structural pipes EN 10210

 

application:   

steel structures, machine, vehicle and equipment building, agricultural machinery

 

production method:    

- seamles
- seamed (with additional normalizing or hot-reduced)

from unalloyed steel
(DIN 17120 – seamed pipes)
(DIN 17121 – seamless pipes)

grade:   

1.0039

S 235 JRH

R St 37-2

1.0149

S 275 JOH

St 44-2

1.0138

S 275 J2H

St 44-3 N

1.0547

S 355 JOH

St 52-3 U

1.0567

S 355 J2H

St 52-3 N

from fine-grained steel
(DIN 17123 – seamed pipes)
(DIN 17124 – seamless pipes)

grade:   

1.0493

S 275 NH

StE 285 N

1.0497

S 275 NLH

T StE 285 N

1.0539

S 355 NH

StE 355 N

1 0549

S 355 NLH

T StE 355 N

1.8953

S 460 NH

StE 460 N

1 8956

S 460 NLH

T StE 460 N

 

outer diameter:  

21,3 up to 1.219,0 mm 
(for seamless pipe - up to 660 mm)

 

wall thickness:  

up to 50 mm

 

trade length:  

- seamless pipe: 5 up to 7 m or double length 
- seamed pipes: 6 up to 15 m, special length - up to 24 m

 

fixed length:  

acc. to agreement

 

straightness:   

0,2 %: along whole length for circular pipes
0,4 %: along whole length and in places

 

dimensional tolerance:   

- for outer diameter: +/- 1 %, min +/- 0,5 mm, max +/- 10 mm
- for wall thickness: 10 % (see additional guidelines in EN 10210)

 

ovality:  

2 %

 

fusion weld excedance:  

wall thickness ≤ 14,2 mm: max 3,5

 

powder welding (UP):  

wall thickness > 14,2 mm: max 4,8 mm

 

marking:  

plant punch, EN standard, steel grade, with steel and colour punch

 

certificates for quality group:  

JR and JO: EN 10204 - 2.2

 

certificates for quality group:   

J2 + fine-grained: EN 10204 - 3.1.B or 3.1C

LINE PIPES

 

Screwed steel line pipes EN 10255

 

(DIN 2440)
(DIN 2241)

application:   

fluid media up to the pressure of 25 bars, gas media as well as air up to the pressure of 10 bars

 

 

diameter / length:   

seamless: Ø 1/4" up to 6" / 6 m (other acc. to agreement) 
seamed: Ø 1/4" up to 6" / 6 m and for 1" up to 2" / 7 m; 7.5 m; 8 m

 

Steel line pipes from structural steel EN 10224

 

(DIN 2460)

application:   

for water conveyance, also for drinking water

 

 

diameter / thickness / length:   

seamless: Ø 88,9 up to 508 mm / up to 11 mm / 5 up to 7 m or double length
seamed: Ø 88,9 up to 2.020 mm / up to 17,5 mm / 6 i 12 m, acc. to improvement – up to 16 m

 

PRESSURE PIPES

Seamless steel pressure pipes EN 10216

EN 10216-1, EN 10216-3 (DIN 1629)
(from unalloyed or fine-grained steel with determined properties for normal temp.)

application:   

acc. to: DVGW, TRB, TRD i ADW

 

diameter / wall / length:   

Ø 10,2 up to 711 mm / up to 100 mm / od 4 up to 7 m (the others – acc. to agreement)

EN 10216-2 (DIN 17175)
(from unalloyed and alloy steel with determined properties at increased temp.)

application:   

boiler tubes for temperatures determined by grades and without determination of pressure level
TC1 class - without ultrasounds or TC2 - with ultrasounds

 

diameter / wall / length:   

Ø 10,2 up to 711 mm / up to 100 mm / od 4 up to 7 m or double length: 
fixed length - acc. to agreement

Seamed steel pressure pipes EN 10217-1

(DIN 1626)
(from unalloyed steel with determined properties for normal temperature)

application:   

acc. to: DVGW, TRB, TRD i ADW

 

diameter / wall / length:   

Ø 10,2 up to 2.540 mm / up to 40 mm / 6, 12 m, partly 18 m (other - acc. to agreement)

SEAMLESS STEEL TUBES for mechanical engineering and universal technical applications EN 10297-1

from unalloyed steel

application:   

tubes with circular intersection for machine building and general technical use

 

diameter / wall / length:   

Ø 26,9 up to 610 mm / up to 100 mm / od 4 up to 7 m, or double length: 
fixed length - acc. to agreement

STRUCTURAL PIPES

Seamed and seamless structural pipes, hot-rolled EN 10210

from unalloyed steel
(DIN 17120 - seamed pipes) 
(DIN 17121 - seamless pipes)

application:   

steel structures, machine, vehicle and equipment building, agricultural machinery

from fine-grained steel
(DIN 17123 - seamed pipes) 
(DIN 17124 - seamless pipes)

diameter / wall:   

Ø 21,3 up to 1.219 mm, (seamless up to 660 mm) / up to 50 mm

 

length:   

seamless: od 5 up to 7 m, or double length
seamed: od 6 up to 15 m, special up to 24 m, other - acc. to agreement

Seamed structural pipes, cold-rolled EN 10219

from unalloyed steel (DIN 17120) 
from fine-grained steel (DIN 59411)

application:   

steel, structures, machine, vehicle and equipment building, agricultural machinery

 

diameter / wall / length:   

Ø 21,3 up to 1.219 mm / up to 30 mm / od 6 up to 15 m, special length 18 m, 
other length - acc. to agreement

STEEL LINE PIPES for gas and combustible media EN 10208 (available only from production)

EN 10208-1 requirement class A

application:   

distribution of flammable media with determined pressure for gas engineering and petrochemical industry

 

diameter / wall / length:   

Ø 33,7 up to 1.626 mm, (seamless up to 660 mm) / up to 40 mm

EN 10208-2 requirement class B

application:   

distribution of flammable media with determined pressure

 

diameter / wall / length:   

Ø 33,7 up to 1.626 mm, (seamless up to 660 mm) / up to 40 mm

PRECISE PIPES EN 10305

EN 10305-1
seamed, cold-drawn

application:   

automotive industry, machine and equipment building

 

diameter / wall:  

Ø 4,0 up to 165,0 mm / 0,5 mm up to 10,0 mm

EN 10305-4 
seamless, cold-drawn HPL

application:  

hydraulic and pneumatic elements

 

diameter / wall:  

Ø 4,0 up to 75,0 mm / 0,5 up to 12,5 mm

EN 10305-2
seamed, cold-drawn

application:  

automotive industry, machine and equipment building

 

diameter / wall:  

Ø 10,0 up to 125,0 mm / 1,0 mm up to 6,0 mm

EN 10305-3
seamed, rolled-to-measure

application:  

furniture industry, sport equipment and other, automotive industry, machine-building industry

 

diameter / wall:  

Ø 6,0 up to 120,0 mm / 0,7 up to 3,0 mm

Stpl 380
Stpl 39
Stpl 450
Stpl 46
Stpl 690
Stpl 70
Splt 380
Splt 39
Splt 450
Splt 46
Splt 690
Splt 70
Ttst 35n
10ni14
X8ni9
Hfs410lt50
cfs410lt50
erw410lt50
cew410lt50
hfs503lt100
cfs503lt100
hfs509lt196
cfs509lt196


JIS G3429
STH38
STH55
STH67
Application: Seamless Steel Tubes in High Pressure Gas Cylinder
JIS G3439
STO-G
STO-H
STO-J
STO-N
STO-C
STO-D
STO-E
Application: Seamless Steel Oil Well, Casing, Tubing and Drill Pipe
JIS G3441
SCr 420TK
SCM415TK
SCM418TK
SCM420TK
SCM430TK
SCM435TK
SCM440TK
Application:Alloy Steel Tubes for General Structural Purpose
JIS G3444
STK 30
STK 41
STK 50
STK 51
STK 55
Application: Carbon Steel Tubes for General Structural Purpose

JIS G3445
STKM11A
STKM12A
STKM12B
STKM12C
STKM13A
STKM13B
STKM13C
STKMI4A
STKM14B
STKM14C
STKM15A
STKM18C
STKM16A
STKM18C
STKM17A
STKM17C
STKM18A
STKM18B
STKM18C
STKM19A
STKM19C
STKM20A
Application: Carbon Steel Tubes for Machine Structural Purposes
JIS G3454
STPG 38
STPG 42
Application: Carbon Steel Pipes for Pressure Service

JIS G3455
STS 38
STS 42
STS 49
Application: Carbon Steel Pipes for High Pressure Service

JIS G3456
STPT 38
STPT 42
STPT 49
Application: Carbon Steel Pipes for High Temperature Service

JIS G3458
STPA 12
STPA 20
STPA 22
STPA 23
STPA 24
STPA 25
STPA 26
Application: Alloy Steel Pipes for Service

JIS G3460
STPL 39
STPL 46
STPL 70
Application: Steel Pipes for Low Temperature Service

JIS G3461
STB 35
STB 42
STB 52
Application: Carbon Steel Boiler and Heat Exchanger Tubes

JIS G3462
STBAl2
STBAM
STBA20
STBA22
STBA23
STBA24
STBA25
STEA26
Application:Alloy Steel Boiler and Heat Exchanger Tubes

JIS G3464
STBL 39
STBL46
STBL 70
Application: Steel Heat Exchanger Tubes for Low Temperature Service

JIS G3465
STM-055
STM-C65
STM-R60
STM-1170
STM-1180
STM-R85
Application: Seamless Steel Tubes for Drilling

JIS G3467
STF 42
STFAl2
STFA22
STFA23
5TFA24
STFA23
STFA26
Application:Steel Tubes for Fired Heater

 

 

 

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NOTE: ALL PIPES CAN BE SUPPLIED IN 3LP, 3LPE & FBE COATING.
 
 

PSL 1 | PSL 2 | MANUFACTURING ROUTES | IMPACT | TOLERANCES | ANNEX E | SOUR SERVICE | OFFSHORE SERVICE | STEEL NUMBER | ANNEX M
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