1、Plastic mould steel ranges widely, from common steel to special steel. This is more obvious in the early days of plastic moulds, now more formal and advanced. Special steel has formed its own system, the chemical composition of cast steel and alloy tool steel is basically the same, but its metallurgical quality is higher, excellent processing properties, conducive to heat treatment.

2. The performance requirements of steel for plastic moulds are strict and the heat treatment is difficult.

3、In order to avoid deformation of mold parts during quenching or other heat treatment problems, mold steel is usually supplied to the market in pre-hardened form.

4、Plastic products made of petrochemicals have different degrees of corrosion, so corrosion-resistant steels are also widely used.

5、By using pre-hardened steel and non-tempered steel, easy cutting is also a characteristic of plastic mold steel. (Imported mold steel)