Steel heat treated to ca. 340–380 HB hardness, good machinability, suitable for texturing, good polishability, high through-hardenability due to the nickel content.
Steel heat treated to ca. 340–380 HB hardness, good machinability, suitable for texturing, good polishability, high through-hardenability due to the nickel content.
Large plastic moulds, heavily loaded at the core, tools for hydroforming.
Chemical composition
| Element | C | Si | Mn | P | S | Cr | Mo | Ni |
| min | 0.35 | 0.20 | 1.30 | max | max | 1.80 | 0.15 | 0.90 |
| max | 0.45 | 0.40 | 1.60 | 0.03 | 0.03 | 2.10 | 0.25 | 1.20 |
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Equivalents
| Wr.Nr. | PN | EN | GOST | AISI |
| 1.2738 | – | 40CrMnNiMo8-6-4 | – | P20+Ni |
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