1 plastic mold steel covers a wide range, from ordinary steel to the special steel. This is more obvious in the early plastic mold, and now has become increasingly formal and advanced. Special steel has been used as a system, the chemical composition of the mold steel and alloy tool steel is the same, but the metallurgical quality is higher, the processing is good, the heat treatment is favorable.

2 plastic die steel properties require strict, heat treatment difficult.

3. In order to avoid mold parts in strengthening and toughening process of deformation or other heat treatment, mold steel to pre hardened form supply market has been more common.

4 to petrochemical products as raw material of plastic products, some degree of different corrosive, so the application of corrosion resistant steel is also more.

5 with pre hardened steel, non quenched and tempered steel, easy cutting is also the characteristics of plastic mold steel.