Stainless steel pipe is a hollow long round steel, which is widely used in petroleum, chemical, medical, food, light industry, machinery and instrumentation and other industrial 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. It is also often used as furniture and kitchen utensils.
For stainless steel pipes with an inner diameter above 6.0mm and wall thickness below 13mm, the W-B75 Webster hardness tester can be used. The test is very fast and simple, and it 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, the Rockwell hardness tester is used 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.
