Dear all,
We ordered welded Carbon Steel & Stainless Steel fittings (45 & 90 degrees ELBOW, TEE, REDUCER … ) according to ASTM A234 and ASTM A403, but the manufacturer offered welded type with two seam for above 12" & 16" for Stainless Steel and Carbon Steel respectively.
According to ASTM A234, ASTM A403 and ASTM A960, I have not seen anything related to number of seam weld.
Now my questions are :
1-In which specification or Standard has been specified that welded fittings should be one seam or two seam weld?
2-Whether welded Fittings with two seam are acceptable or not ? if yes, under which condition?
Kind Regards,
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