Dear Sir, I got 525Mpa in Partial Repair & 657/643 Mpa in main welding procedure with same E series. So what care should be taken duing Thru. Repair Procedure?
Pl. reply. PSP
From: Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
Subject: [MW:4384] RE: 4381] Failure of PQR in All Weld Tensile
To: materials-welding@googlegroups.com
Date: Friday, 26 February, 2010, 12:56 PM
Change the consumable brand, all E70XX series may not give the higher UTS thou AWS classification (E70XX series Min 490Mpa required as per code) is same. There are prescribed consumables for API X grade like Bolher Fox series, BÖHLER FOX EV Pipe etc may give higher UTS, check with your consumable manufacturer and ask for this specific requirement, while sourcing consumable. or use higher TS grades like E9018M | Dear All, We are working on PQR & deatails are as folows : Appl. Code - DNV OS F101,2000 PQR - Through THickness Repair. (SMAW) Base Metal - API 5L X GRADE 60 - 12.75" OD X 14.3 mm THK. Filler Metal - E-7018 H4R Position -6G After mechanical tests, we are getting all values in acceptable limits except All Weld Tensile results.(Reqd- 517 Mpa & Actual - 483 / 493 Mpa) What is the reason & solution for the same? Pl. reply. PSP | -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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