P20
Standard
ASTM A681
Hardness
Pre-hardened HRC28-32
Introduction
General-purpose pre-hardened plastic mold steel with good polishability and machinability at an economical price. Widely used for general injection and blow molding applications.
Applications
General injection molds, blow molds, structural component molds, thermoplastic forming molds.
Chemical composition
| Element | Min | Max | Unit | Note |
|---|---|---|---|---|
| C | 0.28000 | 0.40000 | % | — |
| Si | 0.20000 | 0.80000 | % | — |
| Mn | 0.60000 | 1.00000 | % | — |
| Cr | 1.40000 | 2.00000 | % | — |
| Mo | 0.30000 | 0.55000 | % | — |
A dash means not provided, not zero. Confirm specifications before ordering.