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Table 8 -- CVN absorbed energy requirements for pipe body of PSL 2 pipe
Specified outside
diameter
D
mm (in)
Full-size CVN absorbed energy,
minimum
Kv
J (ft.lbf)
Grade
≤ L415 or
X60
> L415 0r X60
≤ L450 or X65
> L450 or X65
≤ L485 or X70
> L485 or X70
≤ L555 or X80
> L555 or X80
≤ L625 or X90
> L625 or X90
≤ L690 or X100
> L690 or X100
≤ L830 or X120
≤508 (20. 000) 27 (20) 27 (20) 27 (20) 40 (30) 40 (30) 40 (30) 40 (30)
>508 (20.000) to
≤762 (30.000)
27 (20) 27 (20) 27 (20) 40 (30) 40 (30) 40 (30) 40 (30)
>762 (30.000) to
≤914 (36.000)
40 (30) 40 (30) 40 (30) 40 (30) 40 (30) 54 (40) 54 (40)
>914 (36.000) to
≤1 219 (48.000)
40 (30) 40 (30) 40 (30) 40 (30) 40 (30) 54 (40) 68 (50)
>1 219 (48.000) to
≤1 422 (56.000)
40 (30) 54 (40) 54 (40) 54 (40) 54 (40) 68 (50) 81 (60)
>1 422 (56.000) to
≤2134 (84.000)
40 (30) 54 (40) 68 (50) 68 (50) 81 (60) 95 (70) 108 (80)

9.8.3 Pipe weld and HAZ tests


The minimum average (of a set of three test pieces) absorbed energy for each pipe weld and HAZ test, based upon full-size test pieces and a test temperature of 0 °C (32 °F), or if agreed a lower test temperature, shall be

a) 27 J (20 ft.lbf) for pipe with D < 1 422 mm (56.000in) in grades ≤ L555 or X80;

b) 40 J (30 ft.lbf) for pipe with D ≥ 1 422 mm (56.000 in);

c) 40 J (30 ft.lbf) for pipe in grades > L555 or X80.

NOTE      The HAZ of the longitudinal seam weld in HFW welded pipe is usually too narrow to permit accurate sampling for Charpy testing. The requirement for Charpy testing of the seam weld HAZ applies only to SAWL/SAWH and COWL/COWH pipe.

 

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