Welding of ordinary carbon steel pipes
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For the butt welding of ordinary carbon steel pipes (DN100), a backing plate is used, followed by filling with electric welding rods; UT testing is required thereafter. Does the backing plate have an impact on UT testing in this approach?
It should have an impact......
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The shape of the backing on the back side is regular; during UT, inform the inspector of the specifications and dimensions of the backing on the back side. During the UT process, he can determine the welding quality. It has an impact on UT, but it’s not significant. Provided that UT master’s technique is fine: lol