ACCEPTANCE CRITERIA FOR PIPE WELD JOINT FOR SERVICE AT -196 DEG C

[KAUSTUBH12]

WHEN CRYOGENIC VESSEL(-196) MADE OUT IF SA 240 GRADE WITH SA 312 TP 304, 25 NB 10 SCH PIPELINE WHAT SHOULD BE ACCEPTACE CRITERIA FOR PIPE WELDING GTAW QUALIFICATION.

 

[Rich2001]

In general the assentic stainless tseel have very good mechanical properties at -196C. If my memory is correct the tensile strength and toughness is greater at -196C than at ambient temp 30C. Therefore acceptance criteria should be the same as at room temperature.

 

[unclesyd]

Our requirements for welding of cryogenic components made from S/S were 100% RT. This was for both pipe and vessels. It used to UW-11 ASME VIII.

 

[TomEun]

Additionally you can refer the following codes;

ASME Sec.VIII Div.1, UHA-51 (a)
ASME Sec.VIII Div.1, UHA-51 (c)
ASME Sec.VIII Div.2, AM-211.2
ASME Sec.VIII Div.2, AM-213 (a)
ASME B31.3, Para. 323.2.2
ASME B31.3, Table 323.2.2 and Note (36) of Table A

Thomas