EN 10277-5 Grade C40E cold drawn

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Description

Steel C40E is suitable for heat-resistant screws and larger forged parts as well as for parts of complexer form (e.g. gear wheels, camshafts) in vehicle and machine engineering. Lowest application temperature -25°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).

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

7.82 - 7.85 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

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20.0 °C

210 - 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

175 - 184 GPa

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500.0 °C

175 GPa

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600.0 °C

164 GPa

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Elongation

20.0 °C

6 - 9 %

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Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Medium Carbon Steel

Shear modulus

20.0 °C

81 GPa

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Tensile strength

20.0 °C

550 - 1000 MPa

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Yield strength Rp0.2

20.0 °C

290 - 540 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.08E-5 1/K

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20.0 °C

1.19E-5 1/K

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100.0 °C

1.11E-5 - 1.25E-5 1/K

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200.0 °C

1.21E-5 - 1.3E-5 1/K

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300.0 °C

1.29E-5 - 1.36E-5 1/K

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400.0 °C

1.35E-5 - 1.41E-5 1/K

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500.0 °C

1.45E-5 1/K

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600.0 °C

1.49E-5 1/K

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Max service temperature

500 °C

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Typical for Carbon Steel

Max service temperature, long

-25 - 0 °C

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Melting point

1380 - 1514 °C

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Typical for Medium Carbon Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

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20.0 °C

461 - 480 J/(kg·K)

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100.0 °C

479 - 500 J/(kg·K)

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200.0 °C

499 - 550 J/(kg·K)

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300.0 °C

517 - 590 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

48 - 52 W/(m·K)

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100.0 °C

48.9 - 50.6 W/(m·K)

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200.0 °C

47.5 - 48.1 W/(m·K)

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300.0 °C

44.7 - 45.7 W/(m·K)

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400.0 °C

41.6 W/(m·K)

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500.0 °C

38.6 W/(m·K)

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600.0 °C

35.5 W/(m·K)

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Thermal diffusivity

20.0 °C

13.3 mm²/s

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100.0 °C

12.6 mm²/s

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200.0 °C

11.5 mm²/s

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300.0 °C

10.2 mm²/s

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400.0 °C

8.9 mm²/s

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500.0 °C

7.5 mm²/s

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600.0 °C

6 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.2E-7 - 2.17E-7 Ω·m

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100.0 °C

2.62E-7 Ω·m

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200.0 °C

3.32E-7 Ω·m

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300.0 °C

4.2E-7 Ω·m

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400.0 °C

5.23E-7 Ω·m

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500.0 °C

6.41E-7 Ω·m

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600.0 °C

7.8E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.37 - 0.44 %

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Chromium

0.4 %

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Manganese

0.5 - 0.8 %

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Molybdenum

0.1 %

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Nickel

0.4 %

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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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