Seamless steel pipe identification
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API steel pipe
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Alloy steel pipe
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Seamless steel pipe identification
Seamless steel tube precision how, if rough, no weld. If the finish is good, cold-rolled, then, carefully identify, not particularly bright.
The identification method of seamless steel pipe:
seamless pipe
1, with the eyes, welded steel pipe inner diameter will be a very obvious welds, color and other parts of the steel pipe is different.
2, the material for chemical composition analysis, pipe materials will be relatively poor, higher the content of impurities and harmful elements.
3, for the mechanical properties or process performance analysis for flaring test, the welded steel pipe is easy to crack.
For the eddy current flaw detection test, eddy current control injury welded steel pipe may be more of an alarm.
The most direct way is to ask you this steel pipe seamless steel tube manufacturer is not seamless steel pipe there is no warranty book.
If the warranty book, the manufacturers you have promised to bear legal responsibility....
