304 316L 0.9mm 3 inch seamless tube astm 321 stainless steel Round industrial pipes
Product Number: sr-202
HITS: 2023  DATE: 2022/7/16
SPECS: complete
PRICE: Bargaining
PLACE: China
Stainless Steel Pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used as furniture, kitchenware, etc.
The hardness of stainless steel pipes is generally measured by Brinell, Rockwell and Vickers hardness indexes. Among the standards for stainless steel pipes, Brinell hardness is the most widely used, and the indentation diameter is often used to express the hardness of the material, which is intuitive and convenient. However, it is not applicable to steel pipes made of harder or thinner steel. The Rockwell hardness test of stainless steel pipe is the same as the Brinell hardness test, which is an indentation test method. The difference is that it measures the depth of the indentation. Rockwell hardness test is a widely used method at present, in which HRC is second only to Brinell hardness Hb in steel pipe standards. Rockwell hardness can be used to measure metal materials from very soft to very hard. It makes up for the shortcomings of the Brinell method. It is simpler than the Brinell method and can directly read the hardness value from the dial of the hardness machine. However, due to its small indentation, the hardness value is not as accurate as Brinell method.
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