1.P20 steel
is a kind of mold material models, the first is P20, followed by P20H, P20Ni one after another.P20 steel is suitable for the production of plastic mold and die casting of low melting point metal mold material.This steel has good machinability and mirror grinding performance.
2.chemical  composition
C ：0.38    Mn：1.30        Cr： 1.85      Mo ：0.40     S ：0.008
3.Characteristic

Uniform hardness, good polishing performance and light etching cutting performance, processing performance

Vacuum degassing refining processing pure steel, suitable for the polish or etch processing of plastic mold.

The hard state of supply, without treatment can be directly used in mold processing in the heat, shorten the construction period.

By forging and rolling processing, compact structure, 100% ultrasonic inspection, no pores, pinhole defects.