Alloy steel is mainly composed of materials other than carbon and iron plus alloy elements, such as copper, manganese, aluminum, titanium, rare earth and other materials. Alloy steel has high strength, good anti-corrosion, high and low temperature resistance, wear resistance and non-magnetic properties, so its life is relatively long.

The materials of alloy steel plates for boiler are 15CrMo, 12Cr1MoV, etc. The specification and wall thickness of alloy steel plate is about 3-70mm. The width is more than 1.3m-2.4m. Length 3-16m. These two materials are high temperature and high pressure materials, mainly used in boilers, power plants, power plants and other fields.