Stainless steel seamless steel pipe is a kind of seamless steel pipe, stainless steel seamless pipe is a kind of hollow section, no joints around the long steel. The thicker the wall, the more economical and practical it is.

Due to the material, DIN 1630 ST44.4 steel pipe is different from other items. Steel is easy to rust, so there are some precautions for storing steel pipes. If improper storage is easy to cause problems such as rust and corrosion of DIN 1630 ST44.4 steel

GB/T8162-1999 seamless steel pipe for structure, mainly used for general structure and mechanical structure. Its representative material: carbon steel 20, 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc.

DIN 1630 ST44.4 seamless steel tube after heat treatment without tempering, hardness greater than HRC55 is qualified. The actual hardness is HRC55. In the heat treatment of DIN 1630 ST44.4 seamless steel tube parts after tempering and tempering have good