EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT)
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) introduction
Steel 42CrMoS4 is suitable for high loaded parts in vehicle, engine and machine engineering with high wear resistance and favorable core qualities as well as enhanced workability (e.g. crankshafts, pinions, balance shafts). The steel shows a high specific resistance to static and dynamic load. Lowest application temperature -40°C.
As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).
Equivalent material: AFNOR 42CD4u, BS 708M40, ISO 42CrMoS4, UNI 42CrMo4, SS 2244, UNE 40CrM4-1, DIN 42CrMoS4, DIN 1.7227, AISI 4140, SAE 4140, EN 1.7227, ASTM Grade B7, ASTM Grade 12, ASTM Grade 7M, UNS G41400
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.11E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.21E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.29E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.35E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of -40 - 0 °C |
- |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium Molybdenum Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 460 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 42 W/(m·K) |
- |
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.38 - 0.45 % |
| Chromium |
Chromium of 0.9 - 1.2 % |
| Manganese |
Manganese of 0.6 - 0.9 % |
| Molybdenum |
Molybdenum of 0.15 - 0.3 % |
| Phosphorus |
Phosphorus of 0.03 - 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.02 - 0.04 % |
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.9E-7 Ω·m |
EN 10277-5 Grade 42CrMoS4 cold drawn and quenched and tempered (+C+QT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
20.0 °C |
Elastic modulus of 210 GPa |
| - |
100.0 °C |
Elastic modulus of 205 GPa |
| - |
200.0 °C |
Elastic modulus of 195 GPa |
| - |
300.0 °C |
Elastic modulus of 185 GPa |
| Elongation |
20.0 °C |
Elongation of 11 - 12 % |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 81 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 900 - 1200 MPa |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 650 - 750 MPa |
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