DIN 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8
1 2311,40CrMnMoS8-6,1 2312,P20,40CMD8 plastic mould tool steels, suitable to operate in high temperature, used mainly for plastic moulds, hydroforming tools and frames for plastic pressure dies They are highly hardenable, resistant to temper
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.35 | 0.45 | ||
| Si | 0.30 | 0.50 | ||
| Mn | 1.40 | 1.60 | ||
| P | 0.030 | |||
| S | 0.05 | 0.10 | ||
| Cr | 1.80 | 2.00 | ||
| Mo | 0.15 | 0.25 | ||
| V |
