Steel plays an important part in the field of forging and die casting mold manufacturing, because steel has characteristics of high hardness, good wear resistance, good corrosion resistance, good heat resistance, etc. Especially aluminum alloy melting point is around 580℃，which decides its mould must have good heat resistance.As a result steel is widely used in manufacturing moulds for aluminum die casting products. popular steel for aluminum die casting mould is H13,3Cr2W8V and 8407,the mould life made by them can reach 50k shots to 80k shots
