What is the code limit (Only Visual Examination) of Porosity and Root Penetration as per SEC. IX of ASME on 6"dia Sch 80(10.97mm thk) pipe Welded by SMAW Process in 6G position(Welder Performance Qualification).
As per QW-194 Performance test coupons shall show complete joint penetration with complete fusion of weld metal and base metal.....
Kindly Clarify and give ur views on this...
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