How To Identify Defective Stainless Steel Welded Pipe?

Stainless steel welded pipe folding

Shoddy welded stainless steel pipe is prone to folding, folding is a variety of fold lines formed on the surface of the stainless steel pipe, this defect is often throughout the longitudinal direction of the product. The reason for the formation of folding is because of the excessive pursuit of high efficiency by shoddy manufacturers, the amount of underpressure is large, resulting in the formation of lugs in the tube, the next rolled to form the folding, the folding of the product after bending will be cracked, and the strength of the stainless steel pipe will have a significant decline. The appearance of the shoddy welded stainless steel pipe will have the phenomenon of pitting. The numbness is due to the serious wear of the rolling groove resulting in irregular unevenness of the surface of the stainless steel material defects. Stainless steel

welded pipe scarring

The surface of the shoddy stainless steel welded pipe is prone to scarring, the formation of two main reasons, one is that the material of the shoddy stainless steel welded pipe is uneven and has many impurities. The other is that the shoddy stainless steel welded pipe manufacturers guide sanitation equipment is simple, easy to stick to the steel, these impurities bite into the rolls are easy to form a scarring situation.

Stainless steel welded pipe cracks

The surface of the shoddy stainless steel welded pipe is also prone to the formation of cracks, because its billet is adobe, adobe porosity is very much, adobe in the cooling process because of the thermal stress, the formation of cracks, after rolling will have cracks.