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The role of copper in stainless steel pipes
The role of copper in stainless steel pipes
Stainless steel pipe is an alloy material composed of many elements, including nickel, chromium, copper, carbon, iron, manganese and so on. Each element has its own value, just like chromium and nickel elements react with oxygen in the air to form an oxide film attached to the surface of the pipe, which can protect the pipe from corrosion. So what role does copper play?
1. Improve the corrosion resistance of pipes, but the effect is limited, and there is no obvious effect of nickel and chromium;
2. Improve the deep drawing performance of steel, such as 0Cr18Ni9Cu3, which can be made into various corrosion-resistant rivets.
3. In carbon steel, it improves hardenability and reduces ductility.
4. Adding to antibacterial stainless steel, after special treatment, the precipitated phase has a better sterilization effect.
5. In the pipe, part of the copper acts as a strengthening element, which makes the precipitation hardening reaction of each element occur, thereby enhancing the tensile strength of the pipe. In addition, copper in those steels that do not undergo precipitation hardening can slightly increase the yield strength-the low stress value when the material begins to undergo significant plastic deformation, that is, appropriately improve the compression resistance of the pipe.
The above is the role of copper in stainless steel pipes. At the same time, it should be noted that copper and nickel should be added together. In addition, the copper content should not exceed 1.5%, otherwise the steel will become brittle.
Foshan Jinsuiying is a manufacturer specializing in the production of 304 stainless steel pipes. It has a deep understanding of the composition of each element of the pipe and knows how to make the performance of the pipe good. The quality of the product is deeply loved by customers. If you need to purchase stainless steel pipes, please pay attention to the FACEBOOK public account for more information.
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