What material is 09CuPCrNi-A steel sheet

09CuPCrNi-A steel sheet belongs to weathering steel, characterized in that the alloy composition and weight percentage content of 09CuPCrNi-A steel sheet are: 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 is Fe and trace impurities. Alloying by Cu, Mn, Si, Al, etc.

And simply adjust the content of some elements of ordinary low carbon steel (Q235 steel), without changing the production process of Q235 steel, can produce economic weathering steel with good atmospheric corrosion resistance and comprehensive mechanical properties. 09CuPCrNi-A steel sheet is mainly used for steel structures exposed to the atmosphere for a long time, such as railways, vehicles, bridges, and towers.

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