P.20 1.2311
1.2311 is a standard mold steel pre-hardened to 300HB.
Material properties
Standard prehardened steel designed for plastic mold industry.
For which tools
Plastic injection mould cores and cavities, extension dies for thermoplastics.
For which plastics
Thermoplastics (PE, PP, PS), thermosetting plastics, transparent melts.
Standard
• EN: 40 CrMnMo7
• WERKSTOFF Number: 1.2311
• AISI: ≈ P20
Chemical analysis
Typical values (weight%)
| C | S max | P max | Si | Mn | Cr | Mo |
|---|---|---|---|---|---|---|
| .4 | .005 | .012 | .3 | 1.5 | 1.9 | .2 |
