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DIN 1652-3 Grade 20MnCrS5 Cold-Drawn Steel – Superior Strength & Machinability

The steel 20 MnCrS 5 in opposite to 20 MnCr 5 is used for larger parts with higher core strength and better machinability in the vehicle and mechanical engineering (e.g. gearboxes, joint parts, gears, bolts). The lowest application amounts to -25 °C, the best application up to 80 mm nominal size.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Poisson's ratio

20.0 °C

0.28 [-]

Tensile strength

20.0 °C

780 - 850 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

20.0 °C

1.15E-5 1/K

100.0 °C

1.21E-5 1/K

200.0 °C

1.27E-5 1/K

300.0 °C

1.32E-5 1/K

400.0 °C

1.36E-5 1/K

500.0 °C

1.4E-5 1/K

600.0 °C

1.44E-5 1/K

Max service temperature, long

-25 - 0 °C

Melting point

1382 - 1529 °C

Typical for Chromium Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

45.9 W/(m·K)

100.0 °C

46.4 W/(m·K)

200.0 °C

45.6 W/(m·K)

300.0 °C

43.5 W/(m·K)

400.0 °C

40.9 W/(m·K)

500.0 °C

38.2 W/(m·K)

600.0 °C

35.5 W/(m·K)

Thermal diffusivity

20.0 °C

12.7 mm²/s

100.0 °C

12 mm²/s

200.0 °C

11 mm²/s

300.0 °C

9.9 mm²/s

400.0 °C

8.7 mm²/s

500.0 °C

7.3 mm²/s

600.0 °C

6 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.27E-7 Ω·m

100.0 °C

2.76E-7 Ω·m

200.0 °C

3.46E-7 Ω·m

300.0 °C

4.31E-7 Ω·m

400.0 °C

5.32E-7 Ω·m

500.0 °C

6.48E-7 Ω·m

600.0 °C

7.81E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.17 - 0.22 %

Chromium

1 - 1.3 %

Manganese

1.1 - 1.4 %

Phosphorus

0.04 %

Silicon

0.4 %

Sulfur

0.02 - 0.035 %


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