In addition to resistance to oxidizing acid media corrosion, austenitic stainless steel can also be resistant to corrosion by sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains elements such as Mo and Cu.
If the carbon content in this type of steel is less than 0.03% or contains Ti and Ni, its resistance to intergranular corrosion can be significantly improved. High-silicon austenitic stainless steel has good corrosion resistance to concentrated nitric acid. As austenitic stainless steel has comprehensive and good comprehensive properties, it has been widely used in various industries.
Strictly speaking, because the manganese in the 200 series stainless steel has little effect on the electrode potential in the steel, the protective effect of the formed oxide film is very low, and it cannot play a role in corrosion resistance. Therefore, the manganese alloyed austenitic stainless steel, Can't be called real stainless steel.
At present, many manufacturers have reduced the content of chromium and nickel and increased the content of manganese in stainless steel due to cost considerations. However, the reason why stainless steel can be rust-free is because of the presence of chromium and nickel. Lowering the content of these two components will reduce the rust-proof performance.
As a stainless steel seamless pipe exporter, Huzhou Nanxun Yintuo Special Material Technology Co., Ltd. is committed to producing super austenitic stainless steel seamless pipe and tube and other stainless steel seamless pipes. If you want to know more about it, you can contact us.