Scenario
We have a weld joint where 10 mm thick SS pipe (P 8) is welded to 40 mm thick CS (P 1) flat cover. It is a partial penetration weld with 10 mm groove depth. The construction code is ASME Sec VIII Div. 1 and MDMT is -40 degree celcius. I am willing to use ER 309 LMo.
Query
1. Do i have to use WPS with impact at or colder than -40 degree celcius, or only impact tested filler is enough? or,
-YES
2. PQR without impact test will do if i am using non impact tested filler?
-NO.
Regards,
Pravin Katkar
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