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EN 10250-2 Grade 28Mn6 Quenched & Tempered Steel – Ideal for High-Performance Automotive and Machine Parts

Steel 28Mn6 is usable for lower strained weldable parts in vehicle, engine and machine engineering (e.g. cardan shafts, camshafts, gear wheels).

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.82 g/cm³

Mechanical

PropertyTemperatureValueComment

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

Elongation

20.0 °C

16 - 19 %

Elongation, transverse

20.0 °C

11 - 13 %

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Manganese Steel

Tensile strength

20.0 °C

540 - 650 MPa

Tensile strength, transverse

20.0 °C

540 - 590 MPa

Yield strength

20.0 °C

340 - 440 MPa

100.0 °C

324 - 363 MPa

200.0 °C

304 - 333 MPa

250.0 °C

275 - 314 MPa

300.0 °C

255 - 294 MPa

350.0 °C

235 - 265 MPa

Yield strength, transverse

20.0 °C

260 - 390 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

1.25E-5 1/K

200.0 °C

1.3E-5 1/K

300.0 °C

1.36E-5 1/K

400.0 °C

1.41E-5 1/K

500.0 °C

1.45E-5 1/K

600.0 °C

1.49E-5 1/K

Melting point

1382 - 1529 °C

Typical for Manganese 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

48 W/(m·K)

100.0 °C

48.9 W/(m·K)

200.0 °C

47.5 W/(m·K)

300.0 °C

44.7 W/(m·K)

400.0 °C

41.6 W/(m·K)

500.0 °C

38.6 W/(m·K)

600.0 °C

35.5 W/(m·K)

Thermal diffusivity

20.0 °C

13.3 mm²/s

100.0 °C

12.6 mm²/s

200.0 °C

11.5 mm²/s

300.0 °C

10.2 mm²/s

400.0 °C

8.9 mm²/s

500.0 °C

7.5 mm²/s

600.0 °C

6 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.17E-7 Ω·m

100.0 °C

2.62E-7 Ω·m

200.0 °C

3.32E-7 Ω·m

300.0 °C

4.2E-7 Ω·m

400.0 °C

5.23E-7 Ω·m

500.0 °C

6.41E-7 Ω·m

600.0 °C

7.8E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.25 - 0.32 %

Chromium

0.4 %

Manganese

1.3 - 1.65 %

Molybdenum

0.1 %

Nickel

0.4 %

Phosphorus

0.04 %

Silicon

0.4 %

Sulfur

0.035 %


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