P20 mold steel material
P20 pre-hardened plastic mold steel, which belongs to the American grade.
P20 Mold Steel Chemical Composition
C 0.28-0.4
Yes 0.2-0.8
Mn 0.6-1
P ≤0.03
S ≤0.03
CR 1.4-2
Mo 0.3-0.55
Ni 0.05-0.10
P20 mold steel scope of application
Pre-hardened plastic mold steel. It is widely used in China, suitable for large and medium-sized precision molds, suitable for long-term production of high-quality plastic molds, and used for large mold bases. This steel has good machinability and can be generally polished.
P20 Mold Steel Features:
The hardness is uniform, with good polishing performance and photo-etching performance, and the processing performance is good.
Vacuum degassing and refining of steel is pure, suitable for polishing or etching plastic molds.
It is supplied in a pre-hardened state, and can be directly used for mold processing without reheat treatment, shortening the construction period.
After forging and rolling, the structure is dense, 100% ultrasonic inspection, no porosity, needle eye defects.
P20 mold steel hardness
Factory hardness HRC30~42