42CrMo4 steel plate is a medium-carbon alloy structural steel for quenching and tempering. It has good comprehensive mechanical properties, good hardenability and a wide range of applications.
After the oil quenching, the 42CrMo4 alloy steel will be through hardened up to ø60 mm bar diameter. The microstructure of larger dimensions is not fully martensite. The steel is applicable to induction hardening. The surface hardness will exceed min. 53 HRC. Alloy steel plates 42CrMo4 can be delivered M-treated in order to optimize the machinability.
42CrMo4 steel mechanical properties
|
Variant |
Condition |
Format |
Dimension [mm] |
Yield strength min [MPa] |
Tensile strength [MPa] |
Elongation A5 [%] |
Reduction of area Zmin [%] |
Hardness |
Impact (ISO-V) strengthmin |
|
42CrMo4 M (6082) |
+AR |
Round bar |
25 < 160 |
- |
- |
- |
- |
350 HB typical |
- |
|
+A |
Round bar |
25 < 160 |
- |
- |
- |
- |
241 HB typical |
- |
|
|
+QT |
Round bar |
25 < 40 |
750** |
1000-1200 |
11 |
45 |
300-350 HB |
20 °C 35 J (long) |
|
|
Round bar |
40 < 100 |
650** |
900-1100 |
12 |
50 |
270-320 HB |
20 °C 35 J (long) |
||
|
Round bar |
100 < 160 |
550** |
800-950 |
13 |
50 |
240-280 HB |
20 °C 35 J (long) |
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