Dear Experts, Good day, In one of our Job, requirement is Aluminium Bronze weld overlay on P-1 Base metal + PWHT. Weld deposit thickness is 3 to 5 mm. I shall have to qualify Welding Procedure in accordance with ASME Sec. IX using TIG manual process. Which care shall I have to exercise during welding procedure qualificaiton regarding Initial Cleaning, Inter pass cleaning, Preheat temp., Inter pass temp., Post heating and PWHT Cycle (including H.R., Soaking Temp., Time and C.R.)? Further, the iron dilution should be restricted to 2.5% (maximum) in the finished undiluted layer. Please suggest me the correct welding procedure to meet the requirements. Thanks & regards, C. R. GANDHI |
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