Precision cast steelRefers to an iron-based alloy that does not undergo eutectic transformation during the casting process. Cast with alloy. Cast steel is divided into cast carbon steel, cast low alloy steel and cast special steel.

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Cast carbon steel; a type of precision cast steel whose main alloying element is carbon and contains a small amount of other elements. The carbon content is less than 0.2% is cast low carbon steel, 0.2%~0.5% is cast medium carbon steel, and 0.5% or more is cast high carbon steel. The strength of cast carbon steel increases with the increase of carbon content, and the hardness increases. Cast carbon steel has high strength, plasticity and toughness, and its cost is low. It is used in heavy machinery to produce high-load components, such as rolling mill stands, hydraulic press bases, etc.; it is used in railway vehicles to produce Parts that are subject to large forces and can withstand impact, such as pillows, side frames, wheels, and couplers.

B cast low alloy steel. Cast steel containing manganese, chromium, copper and other alloying elements. The total amount of the alloying elements is generally less than 5%, and it has higher impact toughness and better mechanical properties after heat treatment. The performance of cast low alloy steel is better than that of carbon steel, which can reduce the quality of parts and increase the service life.

Special steel casting. In order to meet special needs, the refined alloy cast steel has a variety of types, usually containing one or more alloying elements to achieve certain special properties. For example, high manganese steel containing 11% to 14% manganese is resistant to impact and wear. It is mostly used in various stainless steels for wear-resistant parts of mining machinery and construction machinery. The main alloy elements are chromium and chromium-nickel, which can be used in corrosion and more than 650 Workpieces that work under high temperature conditions of ℃, such as valve bodies, pumps, containers, etc. for the chemical industry.