Yes u can use ….. your welder is qualified for with/without backing …. WPS backing removal is non essential variable
Nonessential Variable (Procedure)
A change in a welding condition which will not affect the mechanical properties of a weldment (such as joint design, method of back gouging or cleaning, etc.)
Senior QC Eng.
Orascom Construction Egypt
+20 122 5880434
Could you please clarify following;
If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX.
Thanks in advance
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