Steel through-hardened to ca. 30 HRC hardness. Has good machinability. Suitable for texturing and electric erosion treatment. Characterised by great polishability in comparison to grade 40CrMnMoS8-6.
home » 1.2311; 40CrMnMo7
Steel through-hardened to ca. 30 HRC hardness. Has good machinability. Suitable for texturing and electric erosion treatment. Characterised by great polishability in comparison to grade 40CrMnMoS8-6.
Large- and medium-sized plastic moulds, framework for injection moulding & die casting industry, general machine construction components. Housings & inserts for high-sheen plastic moulds and die casts.
Chemical composition
| Element | C | Si | Mn | P | S | Cr | Mo |
| min | 0.35 | 0.20 | 1.30 | max | max | 1.80 | 0.15 |
| max | 0.45 | 0.40 | 1.60 | 0.035 | 0.035 | 2.10 | 0.25 |
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Equivalents
| Wr.Nr. | PN | EN | GOST | AISI |
| 1.2311 | – | 40CrMnMo7 | – | P20 |
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+QT – quenched and tempered
+NT – normalized and tempered
from Φ 16 mm to Φ 553 mm in diameter
+QT – quenched and tempered
+NT – normalized and tempered
from 20 mm to 550 mm thick