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P20 Steel


P20 steel is the plastic die steel of medium-carbon Cr-Mo series imported from the United States. The steel has good machinability and mirror grinding performance, is suitable to make plastic molds, and mold materials for die-casting low-melting-point metal.



Chemical properties of P20 Steel


Steel Grade

C

Si

Mn

P

S

Cr

Mo

Cu

P20

0.28-0.40

0.20-0.80

0.60-1.00

≤0.030

≤0.030

1.40-2.00

0.30-0.55

≤0.25



Features of P20 Steel

  • Vacuum degassing and refining process make pure steel quality, suitable for plastic molds that require polishing or etching.

  • Supplied in pre-hardened state, it can be directly used for mold processing without further heat treatment, shortening the production period.

  • The microstructure is dense with forging and rolling. No pores and pinhole defects against 100% ultrasonic inspection.

  • Machinability and mirror polishing performance.



Application of P20 Steel

  • Thermoplastic injection molds, extrusion molds.

  • Thermoplastic blow molds.

  • Main components of heavy-duty molds.

  • Cold-formed structural parts.

  • Commonly used in the manufacture of TV cabinet, washing machines, refrigerator inner shells, buckets, etc.

  • Car bumper mold.


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