Methods for distinguishing seamless steel pipes from welded steel pipes
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This post was last edited by Desert Fish on 2020-8-12 at 12:18: 【Methods for distinguishing seamless steel pipes from welded steel pipes】
Isn’t it obvious at a glance?:lol
Can’t tell┐（─__─）┌
It’s not easy to tell these days; one reason is the improvement in welding technology, and I’ve heard that some people use welded steel pipes to expand the diameter
It’s not visible from the outside of the welded pipe, but welds can be seen when looking inside
Industrial surfaces are easy to distinguish; what you should be referring to are welded pipes and seamless pipes with internal and external surfaces. When looking inside the processed welded pipe, there is a faint straight line visible ； Seamless pipes are not available!