Do you know how to identify seamless steel pipe?

1. With eyes, there will be a very obvious weld on the inner diameter of the welded steel pipe, and its color is different from other parts of the steel pipe.
2. For chemical composition analysis of the material, the material of welded pipe will be relatively poor, and the content of impurities and harmful elements will be higher.
3. For mechanical performance analysis or process performance analysis, the welded steel pipe is easy to crack during expanding test.
4. Conduct eddy current flaw detection test, and there may be more alarms for welded steel pipes during eddy current damage control.