The hardness of stainless steel pipes is generally measured by Brinell hardness, Rockwell hardness and Vickers hardness. Brinell hardness is the most widely used among stainless steel pipe standards. The hardness of this material is often expressed by the indentation diameter, which is intuitive and convenient.
What is
stainless steel pipe?
The hardness of stainless steel pipes is generally measured by Brinell hardness, Rockwell hardness and Vickers hardness. Brinell hardness is the most widely used among stainless steel pipe standards. The hardness of this material is often expressed by the indentation diameter, which is intuitive and convenient. But it is not suitable for steel pipes made of hard steel or thin steel. Rockwell Hardness, Stainless Steel Pipe The Rockwell hardness test is an indentation test method, just like the Brinell hardness test. The difference is that it measures the depth of the indentation. Rockwell hardness test is currently a widely used method, among which HRC is second only to Brinell hardness HB in steel pipe standards.
However, due to the smaller indentation, the hardness value is not as accurate as the Brinell method. Vickers hardness, stainless steel tube Vickers hardness test is also an indentation test method, which can be used to measure the hardness of very thin metal materials and surface layers. It has the main advantages of the Brinell method and the Rockwell method and overcomes their disadvantages. The basic disadvantage is that it is not as simple as the Rockwell method, and the Vickers method is rarely used in steel pipe standards. Hardness testing: Stainless steel annealed pipes with an inner diameter greater than 6.0mm and a wall thickness less than 13mm can be tested with the WB75 Webster hardness tester, which is very fast and simple and suitable for rapid non-destructive qualification testing of stainless steel pipes.
What is the difference between stainless steel pipe and seamless steel pipe?
1. In appearance, stainless steel pipes are generally white and unembroidered. The surface of ordinary seamless steel pipes will be embossed or reddish brown. Stainless steel is corrosion-resistant and has a much better finish than ordinary steel pipes.
2. Seamless steel pipes are drawn by technology and have no welding seams. The material can be ordinary No. 20 steel or stainless steel. Ordinary stainless steel pipes are generally welded by technology and made of stainless steel.
