Product brief introduction

4CrNiMnMo is widely used in the world of plastic mold steel, its comprehensive mechanical properties, high hardenability, can make more cross-section steel to obtain a more uniform hardness, and has a good polishing

Can, mold surface finish is high. When the steel is used to make a mold, it is generally first quenched and tempered, and the hardness is HRC 28 to 35 (that is, pre-hardening). After the cold forming, the mold can be used directly. In this way, the use performance of the mold is ensured, and the deformation of the mold caused by the heat treatment is avoided. Therefore, the steel grade is suitable for manufacturing large. Medium and precision plastic molds and low melting point tin, zinc

 , lead alloy with an overview 

Product Parameter

CSiMnPSCrMoNi0.28-0.40.2-0.80.6-1≤0.03≤0.031.4-20.3-0.550.85-1.15

Technical Equipment

This steel has good machinability and mirror grinding properties. P20 has been pre-hardened to 285-330HB (30-36HRC), which is equivalent to Swedish 618 German GS-2311. It can be directly used for mold processing and has good dimensional stability. Pre-hardened steel can meet general purpose. Demand, mold life up to 50W mold times.