EN 10269 Grade 42CrMo4 annealed to achieve spheroidized carbides (+AC)

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Description

Steel 42CrMo4 is suitable for high-stress components (also large forged parts) in vehicle, engine and machine engineering with high wear resistance and very favorable core properties ( e.g. crankshafts, pinions, balance shafts). The steel shows a high resistivity to static and dynamic loading. Lowest working temperature -40 °C Further application for mounting elements at increased and lower temperatures.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.83 - 7.85 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

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20.0 °C

212 GPa

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100.0 °C

205 - 207 GPa

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200.0 °C

195 - 199 GPa

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300.0 °C

185 - 192 GPa

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400.0 °C

184 GPa

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500.0 °C

175 GPa

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600.0 °C

164 GPa

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Poisson's ratio

20.0 °C

0.28 [-]

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Reduction of area

20.0 °C

57 %

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Tensile strength

20.0 °C

630 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

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20.0 °C

1.15E-5 1/K

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100.0 °C

1.11E-5 - 1.21E-5 1/K

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200.0 °C

1.21E-5 - 1.27E-5 1/K

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300.0 °C

1.29E-5 - 1.32E-5 1/K

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400.0 °C

1.35E-5 - 1.36E-5 1/K

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500.0 °C

1.4E-5 1/K

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600.0 °C

1.44E-5 1/K

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Max service temperature, long

-40 - 0 °C

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Melting point

1382 - 1529 °C

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Typical for Chromium Molybdenum Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

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20.0 °C

461 J/(kg·K)

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100.0 °C

479 J/(kg·K)

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200.0 °C

499 J/(kg·K)

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300.0 °C

517 J/(kg·K)

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400.0 °C

536 J/(kg·K)

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500.0 °C

558 J/(kg·K)

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600.0 °C

587 J/(kg·K)

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Thermal conductivity

20.0 °C

45.1 W/(m·K)

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100.0 °C

45.1 W/(m·K)

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200.0 °C

44.1 W/(m·K)

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300.0 °C

41.9 W/(m·K)

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400.0 °C

39.4 W/(m·K)

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500.0 °C

36.9 W/(m·K)

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600.0 °C

34.4 W/(m·K)

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Thermal diffusivity

20.0 °C

12.5 mm²/s

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100.0 °C

11.6 mm²/s

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200.0 °C

10.6 mm²/s

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300.0 °C

9.5 mm²/s

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400.0 °C

8.4 mm²/s

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500.0 °C

7.1 mm²/s

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600.0 °C

5.8 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.31E-7 Ω·m

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100.0 °C

2.84E-7 Ω·m

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200.0 °C

3.58E-7 Ω·m

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300.0 °C

4.48E-7 Ω·m

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400.0 °C

5.52E-7 Ω·m

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500.0 °C

6.71E-7 Ω·m

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600.0 °C

8.06E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.38 - 0.45 %

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Chromium

0.9 - 1.2 %

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Manganese

0.6 - 0.9 %

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Molybdenum

0.15 - 0.3 %

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Phosphorus

0.03 - 0.04 %

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Silicon

0.4 %

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Sulfur

0.035 %

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