Stainless Steel Pipe is a hollow, elongated, circular steel material widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical, medical, food, light industry, mechanical instruments, etc. In addition, when the bending and torsional strength are the same, the weight is relatively light, so it is also widely used in the manufacturing of mechanical parts and engineering structures. It is also commonly used as furniture, kitchenware, etc. Stainless Steel Pipes generally use Brinell, Rockwell, and Vickers hardness indicators to measure their hardness. Among the standards for stainless steel pipes, Brinell hardness is the most widely used, and the hardness of the material is often represented by the diameter of the indentation, which is both intuitive and convenient. However, it is not suitable for steel pipes made of harder or thinner steel.