Comparison of standards and characteristics of AISI P20, improved version 
 Pre-factory condition and hardness of hard to HB 330 - 370 
 The main chemical composition of typical 
 The results (%) Composition C Mn Si Cr Ni Mo 
 Percentage 0.33 1.85 0.6 0.9 0.5 0.3 

 Characteristics of the chemical composition of steel by special preparation, coupled with good forging process and the compression ratio, mechanical properties superior than the average of P20 steel 
 General purpose steel for high hardness, high gloss, and wear resistance of the plastic mold for making PA, POM, PS, PE, PP, ABS plastic mold 
 Quenching temperature cooling 
 Tempering temperature and hardness were 180 ℃ 225 ℃ 300 ℃ 570 ℃ 


 Pre-hardened and not hardened