310HV limit welding 25Cr Duplex
310HV limit welding 25Cr Duplex
(OP)
Hi,
How to comply with sour service related 310HV limit on 25Cr Duplex?
Tried a TQ as suggested on thread330-344142: Acceptance criteria - Hardness super duplex welds, but in vain.
Different PQR has been produced for this scope, with very good result except for higher than 310HV hardness values on the root zone.
Has anyone here experience with such low requirements?
How to comply with sour service related 310HV limit on 25Cr Duplex?
Tried a TQ as suggested on thread330-344142: Acceptance criteria - Hardness super duplex welds, but in vain.
Different PQR has been produced for this scope, with very good result except for higher than 310HV hardness values on the root zone.
Has anyone here experience with such low requirements?





RE: 310HV limit welding 25Cr Duplex