DIN 17741 Grade NiMn2 1/2 hard

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Description

The material NiMn2 with the material number 2.4110 is applied in the form of strips, bars and wires for built-in parts for thermionic valves and light bulbs as well as spark plugs. It is a wrought-nickel alloy that is solidified by a manganese additive. The material possesses increased high temperature tensile strength. If used for thermionic valves, the material has to be free of Pb, Zn, Sn, As, P and other easily evaporable elements.

Related Standards

This material data has been provided by WIAM.

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

8.8 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

222 GPa

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Elongation

20.0 °C

20 %

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Hardness, Brinell

20.0 °C

160 [-]

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Tensile strength

20.0 °C

540 MPa

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Yield strength Rp0.2

20.0 °C

340 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.33E-5 1/K

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200.0 °C

1.39E-5 1/K

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300.0 °C

1.43E-5 1/K

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400.0 °C

1.48E-5 1/K

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500.0 °C

1.52E-5 1/K

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Melting point

1400 - 1500 °C

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Typical for Pure/Low Nickel Alloy

Specific heat capacity

20.0 °C

500 J/(kg·K)

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Thermal conductivity

20.0 °C

55 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.09E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.05 %

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Cobalt

1 %

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Copper

0.25 %

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Iron

0.35 %

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Magnesium

0.15 %

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Manganese

1.5 - 2.5 %

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Nickel

96 %

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Silicon

0.25 %

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Sulfur

0.01 %

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Titanium

0.1 %

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