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
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of prashant pansare
Sent: Friday, February 26, 2010 12:39 PM
To: mat wel
Cc: par kat; roj abra
Subject: [MW:4381] Failure of PQR in All Weld Tensile
| 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 |
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