Identification Method of Seamless Steel Pipe

Seamless steel pipe identification methods are:
1, With the eyes, welded pipe diameter will have a very obvious weld, the color and other parts of the steel pipe is different.
2, The chemical composition of the material for analysis, the pipe material will be relatively poor, impurity and harmful elements content will be higher.
3, For mechanical performance analysis or process performance analysis, for flaring test, the welded pipe easy to crack.
4, For eddy current testing, eddy current injury control of welded steel pipe may be more alarm.