09CuPCrNi-A steel and 05CuPCrNi steel under TB/T 1979 standard have a protective rust layer resistant to atmospheric corrosion, and can be used to manufacture low alloy structural steel for vehicles, bridges, towers, containers and other steel structures. These corten steel plates can also be used to manufacture containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, and containers containing hydrogen sulfide corrosive media in chemical oil equipment. Below are the comparison of 05CuPCrNi steel and 09CuPCrNi-A steel in chemical composition and mechanical properties. China TB/T 197905CuPCrNi steel chemical composition
As can be seen from the data in the above table, 09CuPCrNi-A plate has a higher carbon content than 05CuPCrNi, and has higher Yield Strength and Tensile Strength. The higher the carbon content of steel, the higher its strength and hardness, and the better its plastic toughness. In contrast, 05CuPCrNi steel has better deformation ability, while 09CuPCrNi-A has better strength. You can choose to buy 05CuPCrNi or 09CuPCrNi-A according to your needs, and we will provide you with material quotes quickly and accurately.