ASME IX Welding Certs.

Date 04-21-2003 21:22

If the contractor I am working for gives a pipe weld test S/S to carbon coupons with 309 wire GTAW SMAW, will this test also allow You to weld with Er70s2 and 7018 carbon to carbon

By GRoberts (***)

Date 04-21-2003 22:07

In ASME IX, all ferrous base metals are covered by a test on any P1-P11, P34, or P41-47 base metal with regards to welder qualification. See QW-423.1 & QW423.2. For the GTAW part of the question, ER309 would fall under A/SFA5.9 and is F6, and the ER70S-2 is under A/SFA5.18 which is also F6, so that part is good. The E309-XX for SMAW is an F5 (A/SFA 5.4), but the E7018 is under A/SFA5.1 and falls under F4, so the welder is not qualified to use the E7018. FYI, all this information can be found starting from tables QW-353 and QW-356 in ASME IX.