Atmospheric corrosion resistant 09CuPCrNiA steel plate is characterized by its weather resistance. The chemical composition of 09CuPCrNiA steel plate is: C: 0.12-0.21, Si: 0.2-2.0, Mn: 0.7-2.0, s ≤ 0.036, P ≤ 0.034, Cu: 0.10-0.40, Al < 0.2, the rest are Fe and trace impurities.
Through alloying of Cu, Mn, Si, Al, and simply adjusting some element contents of ordinary low carbon steel (Q235 steel), economic 09CuPCrNiA steel plate with good atmospheric corrosion resistance and comprehensive mechanical properties can be produced without changing the production process of Q235 steel.
Atmospheric corrosion resistant 09CuPCrNiA steel plate is mainly used for railway, vehicle, bridge, tower and other steel structures exposed to the atmosphere.
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