Introduction of 10#, 20#, 30# excellent carbon steel

10# is No. 10 steel. 10# steel is one of the high-quality carbon steels with an average carbon content of 10%. Its plasticity, toughness, elongation and weldability are very good, and it is especially suitable for molding parts. But it is precisely because of its advantages that it is easy to deform, and is generally used as a material for press molding and rivets. After normalizing or cold working, it 10# carbon steel has good cutting performance, excellent weldability, no temper brittleness, and poor hardenability and hardenability.

The 20 of 20# excellent carbon steel refers to the carbon content, and the carbon content is 0.2%, which belongs to low carbon steel. Steel can be divided into low carbon steel, medium carbon steel and high carbon steel. Low carbon steel - carbon content is generally less than 0.25%; medium carbon steel - carbon content is generally between 0.25 and 0.60%; high carbon steel - carbon content is generally greater than 0.60%.

The 30# steel plate belongs to the high-quality carbon steel plate, the unified digital code: U20302, and the GB/T699-1999 standard is implemented. Compared with low carbon steel plate, No. 30 steel has high strength, high toughness, and good welding performance. It is used for hot forging and hot stamping mechanical parts, cold drawing and heavy machinery manufacturing. The representation method of 30# steel plate under different standards: 30# national standard: No. 30 steel, German standard: C30, American standard: 1030, Japanese standard S30C.