Steel through-hardened to ca. 30 HRC hardness. Due to higher sulphur content, it’s characterised by very good machinability and good polishability.
Steel through-hardened to ca. 30 HRC hardness. Due to higher sulphur content, it’s characterised by very good machinability and good polishability.
Large- and medium-sized plastic moulds, framework for injection moulding & die casting industry, general machine construction components. Large housings and inserts for plastic moulds & die casts requiring high polishability.
Chemical composition
| Element | C | Si | Mn | P | S | Cr | Mo |
| min | 0.35 | 0.30 | 1.40 | max | 0.05 | 1.80 | 0.15 |
| max | 0.45 | 0.50 | 1.60 | 0.03 | 0.10 | 2.00 | 0.25 |
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Equivalents
| Wr.Nr. | PN | EN | GOST | AISI |
| 1.2312 | – | 40CrMnMoS8-6 | – | P20+S |
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+QT – quenched and tempered
+NT – normalized and temeperd
from Φ 16 mm to Φ 202 mm in diameter
+QT – quenched and tempered
+NT – normalized and temeperd
from 8 mm to 550 mm thick