Hot-formed steel 30MnB5 has the characteristics of high hardness and good plasticity. It is easy to cut and process, and can be stamped into complex parts. It is widely used in automotive structural parts and agricultural machinery and has good application prospects. Under the premise of unchanged strength, elasticity and other properties, the thickness of this product is reduced to 2.2 mm, which is 27% thinner than ordinary specifications, and the weight reduction effect can reach 20%~30%, which is at the leading level in the industry.