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EN 10083-1 Grade C25R Quenched & Tempered Steel – Ideal for Vehicle & Machine Engineering

Steel C25R is suitable for low strained parts in vehicle manufacturing and machine engineering which have to meet higher demands on workability while maintaining mechanical properties (e.g. transmission parts, crankshafts, cylinder). Lowest working temperature -25 °C.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.82 - 7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

210 - 212 GPa

100.0 °C

205 - 207 GPa

200.0 °C

195 - 199 GPa

300.0 °C

185 - 192 GPa

400.0 °C

175 - 184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Elongation

20.0 °C

19 - 21 %

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Low Carbon Steel

Reduction of area

20.0 °C

45 - 50 %

Shear modulus

20.0 °C

81 GPa

Tensile strength

20.0 °C

500 - 700 MPa

Yield strength

20.0 °C

320 - 370 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.08E-5 1/K

20.0 °C

1.19E-5 1/K

100.0 °C

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

200.0 °C

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

300.0 °C

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

400.0 °C

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

500.0 °C

1.45E-5 1/K

600.0 °C

1.49E-5 1/K

Max service temperature

500 °C

Typical for Carbon Steel

Max service temperature, long

-25 - 0 °C

Melting point

1480 - 1526 °C

Typical for Low Carbon Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

460 - 461 J/(kg·K)

100.0 °C

479 - 480 J/(kg·K)

200.0 °C

499 - 520 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 - 610 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

39.6 - 52 W/(m·K)

100.0 °C

41 - 51 W/(m·K)

200.0 °C

41 - 49 W/(m·K)

300.0 °C

39.9 - 46 W/(m·K)

400.0 °C

38.1 W/(m·K)

500.0 °C

35.9 W/(m·K)

600.0 °C

33.6 W/(m·K)

Thermal diffusivity

20.0 °C

11 mm²/s

100.0 °C

10.6 mm²/s

200.0 °C

9.9 mm²/s

300.0 °C

9 mm²/s

400.0 °C

8.1 mm²/s

500.0 °C

6.9 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.2E-7 - 2.63E-7 Ω·m

100.0 °C

3.12E-7 Ω·m

200.0 °C

3.85E-7 Ω·m

300.0 °C

4.7E-7 Ω·m

400.0 °C

5.71E-7 Ω·m

500.0 °C

6.88E-7 Ω·m

600.0 °C

8.25E-7 Ω·m

Magnetic

PropertyValueComment

Curie temperature

770 °C

Typical for Low Carbon Steel

Chemical properties

PropertyValue

Carbon

0.22 - 0.29 %

Chromium

0.4 %

Copper

0.3 %

Manganese

0.4 - 0.7 %

Molybdenum

0.1 %

Nickel

0.4 %

Phosphorus

0.03 - 0.04 %

Silicon

0.1 - 0.4 %

Sulfur

0.02 - 0.04 %


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