magnetism stainless steel corrosion conditions

All metals and oxygen in the reaction atmosphere , an oxide film is formed on the surface . Unfortunately , the iron oxide formed on carbon qiyi magnetism stainless steel is continued oxidation, rust expanded , forming holes. You can use paint or oxidation-resistant metals ( eg , zinc, nickel and chromium ) plating to ensure the steel surface , but, as people know, this protection is only a film . If the protective layer is damaged , the following steel began to rust . Corrosion resistance of qiyi stainless steel 304 sheet depends on chromium, but because chromium is an integral part of steel, so the protection methods vary.

stainless steel sheet carbon content

Was first made ​​in 1912 by the British H. Brearley . By organizational structures at room temperature, chromium stainless steel is divided into ferritic stainless and martensitic stainless steel categories. Ferritic stainless steel sheet low carbon content , heat treatment can enhance low intensity , weldability is poor, such as 0Cr13, 0Cr17Ni , mainly used for the production of nitric acid , synthetic fibers and food industry equipment. Carbon , total nitrogen content of 0.02 % or less of the ultra- pure ferritic stainless steel as 00Cr27Mo better corrosion resistance and process performance. Martensitic 430 stainless steel sheets high carbon content , after hardening heat treatment to get high strength and hardness, but poor corrosion resistance , such as 1Cr13, 4Cr13, 9Cr18MoV steel , used for the manufacture of turbine blades to withstand high loads , the bolt and high hardness of valves, tools and bearings.

magnetic stainless steel sheets has a comprehensive and good overall performance

Add S, Ca, Se, Te and other elements, with good cutting properties . Such qiyi magnetic stainless steel sheets resistant to oxidizing acid medium except corrosion, if they contain Mo, Cu and other elements are also resistant to the corrosive sulfuric acid , phosphoric acid and formic acid, acetic acid, urea and the like. Such steel carbon content less than 0.03 %, or if containing Ti, Ni, can significantly improve their resistance to intergranular corrosion between . Austenitic stainless steel high silicon Ken concentrated nitric acid has good corrosion resistance. Because of austenitic qiyi 304 stainless steel sheet with a comprehensive and good overall performance , in all walks of life to get a wide range of applications .

magnetic stainless steel sheets for short

Resistant stainless steel for short. Specifically refers to a stainless steel or corrosion-resistant steels as stainless steel in the atmosphere , water vapor , fresh water and other weak corrosive medium ; while the resistance to chemical corrosion ( acids, bases, salts and other chemical attack ) of steel called of acid-resistant steel . qiyi magnetic stainless steel sheets in the chemical composition of leaving their corrosion resistance is different from ordinary stainless steel is generally resistant to chemical corrosion, while
Acid-resistant stainless steel generally has sex . In layman's terms , that is not easy to rust stainless steel , in fact, part of the stainless steel , both of stainless steel , but also acid resistance ( corrosion resistance ) . And corrosion resistance of stainless steel is due to its chromium-rich oxide film on the surface ( passivation film ) formation. This stainless steel and corrosion resistance is relative.
The corrosion resistance of stainless steel qiyi magnetic stainless steel the alloying elements contained . Chromium is the corrosion resistance of stainless steel to obtain the basic elements , when the steel contains chromium content reaches about 12% chromium and corrosive effects of oxygen in the steel surface of a thin oxide film ( self-passivating film) , can prevent further corrosion of the steel substrate . In addition to chromium , commonly used alloying elements nickel , molybdenum, titanium , niobium, copper , nitrogen, etc. , in order to meet a variety of uses for stainless steel organization and performance requirements.

magnetic stainless steel sheets corrosion resistance

Resistant stainless steel for short. Specifically refers to a stainless steel or corrosion-resistant steels as stainless steel in the atmosphere, water vapor, fresh water and other weak corrosive medium; qiyi magnetic stainless steel sheets resistance to chemical corrosion (acids, bases, salts and other chemical attack) of steel called of acid-resistant steel. Due to the difference in the chemical composition of leaving their corrosion resistance is different from ordinary stainless steel is generally resistant to chemical corrosion, and acid-resistant steel is generally a stainless steel.
Development and progress of China's stainless steel industry late, since the founding of the reform and opening up, China's qiyi magnetic stainless steel demand is mainly based on the use of cutting-edge industrial and defense-oriented. After the reform and opening up, the rapid economic development, people's living standards improved significantly, boosting the demand for stainless steel.