ASTM A213 Welded Schedule 40 304 Stainless Steel Pipe 8K Mirror Polished

  Stainless steel pipe is a hollow long round steel, mainly used in petroleum, chemical, medical, food, light industry, machinery and instrumentation and other industrial transportation pipelines and mechanical structural parts. In addition, when the bending and torsion strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also often used as furniture, kitchenware, etc.

  For stainless steel pipes with inner diameters above 6.0mm and wall thicknesses below 13mm, the W-B75 Webster Hardness Tester can be used. It is very fast and easy to test, and is suitable for quick and non-destructive qualification inspection of stainless steel pipes. For stainless steel pipes with an inner diameter greater than 30mm and a wall thickness greater than 1.2mm, use a Rockwell hardness tester to test the hardness of HRB and HRC. For stainless steel pipes with an inner diameter greater than 30mm and a wall thickness less than 1.2mm, the surface Rockwell hardness tester is used to test the hardness of HRT or HRN. For stainless steel pipes with an inner diameter of less than 0mm and greater than 4.8mm, use a special Rockwell hardness tester for pipes to test the hardness of HR15T. When the inner diameter of the stainless steel pipe is greater than 26mm, the hardness of the inner wall of the pipe can also be tested with a Rockwell or surface Rockwell hardness tester.