Influence of Mating Between Base Metal and Welding Material on Porosity Occurrence in Submerged Arc Weld Pipe Production
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Abstract
Causes for porosity occurrence in welding seams were investigated by means of statistic analysis of the porosity degree of welding seams of the submerged arc weld spiral pipes made with X65 and Q235 steels from different works and mating weld materials,and of selecting proper mating material on the basis of different oxygen contents in the base metals.
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