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Greeting Experts our shop drilled seat lube holes on the wrong side of an valve body. Once they realized it, they welded up the 1/8” holes that go through the body into the seat pocket. The hole may have went through on one of the side plates to hub corner welds. customer inspector is stating...

Thank you All for tips. I`m still waiting to getting result of hardness from Lab

metengr: good point . thanks

EdStainless: we had UT and PT for NDE and condition of heat treatment on BM is H1150D per SA-564 Type 630 H1150D (double aged ) . the case is we had fracture right in middle of the weldmetal.

metengr: I have had review this article which was interesting . the case is our side bends snapped almost as soon as they started bending it . and the fracture was right in weld metal .I`m still working with laboratory to get results of hardness and tensile.

metenger: the Filler metal for GTAW was ER630 and for SMAW was E630-16 (Both Lincoln product) hardness test is in progress and I asked Laboratory for side bend radius .

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...

EdStainless , Thank you so much ,great sources and tips

Dear Experts, We always welded carbon steels and low alloys in our weld shop and now we need to weld some DSS in there . we defiantly want to keep this work in house and need to make clean area for welding on DSS . any advise or reference that can give some more information about how to make...

any other recommend ?

Thanks David,great tip

Hello Experts I`m looking for Heat input formula for TIG -Pulse -Hot wire Process , I`ve got multiple formula ,but I can not trust to the their references. Thanks

I`m looking for finding specification in ASME section II compare with material below: ISO 15590-2,Grade 450 Class C With additional requirements Nb+V+Ti<=0.12% TBC. Thanks All for your help.

Thank you so much Metengr

any other specific sources for that?

Thanks metengr

Thanks weldstan ,would you please give me guide line to learn little bit more about it?

Hello Experts we welded 4130 to 4130 material with suitable WPS with PWHT . after welding, hardness in base metal was OK but we found crack on toe weld ,after repair and PWHT with same WPS that we used before for fabrication ,Hardness dropped on base metal , would you please tell what...

Thanks for your respond ,really useful

Hi all My question is , can I use a WPS that is qualified based on Section 9 for welder qualification that I want to be qualified base on D1.1 , (Att: mechanical tests meet D1.1 criteria) I know based on paragraph 4.22 I should use D1.1 procedure for welder qualification however I heard if...