Large and medium-sized moulds for plastic processing, mould frames for the injection moulding and die casting industries, components for general mechanical engineering.
Chromium – manganese – molybdenum steel with sulfur content. Very good machinibility in hardened and tempered condition. It is well hardened and tempered, which yields uniform hardness over the whole cross section, including large sizes. Good polishability. Bath and gas nitriding as well as case hardening and hard chromium plating are possible.
| Etchability | Machinability supplied | Polishability | Through hardenable | Toughness | Wear resistance |
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| DIN | EN | Others |
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| 1.2312 | 40CrMnMoS8-6 | AISI: ~ P20, STN: 19 520 |
| C | Si | Mn | S | Cr | Mo | |
|---|---|---|---|---|---|---|
| 0.40 | 0.40 | 1.50 | 0.08 | 1.90 | 0.20 |
