Unlisted Material Weld Qualification 1

[sw23cyp]

Does B31.3 permit the designer to specify a weld metal that results in a lower tensile/yield strength than that of the unlisted base metal it is joining? The PQR uses A519-4130 joined with E10018-D2 MR. The tensile/yield results for the test specimens are lower than that listed in the ASTM standard for A519-4130 but well over the strength required for its intended application.

 

[metengr]

Yes, if approved by the Designer and you have qualified the WPS per ASME Section IX, it can be done.

 

[sw23cyp]

Thank you so much for your help, metengr.