Testing of Common Defects in Seamless Steel Tube

Testing of Common Defects in Seamless Steel Tube



Seamless steel pipe magnetic particle testing or penetration testing can effectively detect surface cracks, folding, heavy skin, hairline, pinholes and other surface defects. For ferromagnetic materials, magnetic particle testing should be preferred, because of its high detection sensitivity; for non-ferromagnetic materials, such as stainless steel seamless steel pipe, the use of penetration testing.

Seamless Steel Tube When the cut-off margin is less at both ends, the two ends are not effectively detected due to the structural reasons of the test device, and the end is the most likely location where cracks or other defects are present. If there is a potential tendency to crack at the end of the wire, the heat of welding during installation may also cause potential cracks to expand. Therefore, it should also be noted that after welding a certain area of seamless steel pipe detection, the timely detection of defects in the end of steel pipe expansion.

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