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EN 10222‑3 Grade 15NiMn6 – Normalized/Normalized‑Formed Cryogenic Alloy (N)

The nickel-alloyed cryogenic material 15NiMn6, material number 1.6228 is used for pressure vessels and apparatus which are loaded at temperatures up to -80 °C. and have to show high toughness.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 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

20 %

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Nickel Steel

Shear modulus

23.0 °C

76 GPa

Typical for Nickel Steel

Tensile strength

20.0 °C

470 - 640 MPa

Yield strength

20.0 °C

355 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

Melting point

1316 - 1595 °C

Typical for Nickel 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

42.5 W/(m·K)

100.0 °C

43.5 W/(m·K)

200.0 °C

42.8 W/(m·K)

300.0 °C

40.9 W/(m·K)

400.0 °C

39 W/(m·K)

500.0 °C

36.4 W/(m·K)

600.0 °C

34.1 W/(m·K)

Thermal diffusivity

20.0 °C

11.7 mm²/s

100.0 °C

11.2 mm²/s

200.0 °C

10.3 mm²/s

300.0 °C

9.3 mm²/s

400.0 °C

8.3 mm²/s

500.0 °C

7 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.45E-7 Ω·m

100.0 °C

2.94E-7 Ω·m

200.0 °C

3.69E-7 Ω·m

300.0 °C

4.59E-7 Ω·m

400.0 °C

5.58E-7 Ω·m

500.0 °C

6.79E-7 Ω·m

600.0 °C

8.13E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.18 %

Manganese

0.8 - 1.5 %

Nickel

1.3 - 1.7 %

Phosphorus

0.03 %

Silicon

0.35 %

Sulfur

0.01 - 0.015 %

Vanadium

0.05 %


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