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[MW:27277] 17-4PH welding( Double aged H1150)

By Materials & Welding

Dear Experts,


We had qualification with GTAW and SMAW (manual process) on 1.5" thick test coupon . to prepare build up welding procedure . our test coupon got Post weld heat treatment at 1150°F for 4 hours ( without solution annealing ) . 

Test got failed at the  first step for side bend ( see attached picture ). 

I`m looking for a reason or reasons  of this failure .

Do you think the reason should came from , not perform solution annealing on the test coupon ? or something else should be reason !


Cheers, 

DW

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