DIN 17745 Grade NiFe48Cr

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Description

The expansion material NiFe48Cr possesses a relatively low thermal expansion at 450 °C. (Temperature interval RT to 400 °C: coefficient of thermal expansion 9.9 to 10.7 10^-6 K^-1). It is applied for sealings for soft glasses as well as as surge voltage protection. The alloy is of good durability at normal temperatures in air with normal weather conditions as well as in fresh water and sea water. NiFe48Cr is well weldable by using the tungsten inert-gas method and is also applied as welding filler material.

Related Standards

Equivalent Materials

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

8.3 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

157 GPa

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Elongation

20.0 °C

3 - 30 %

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Hardness, Brinell

20.0 °C

135 - 250 [-]

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Poisson's ratio

23.0 °C

0.28 [-]

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Typical for Nickel Iron Alloy

Tensile strength

20.0 °C

550 - 800 MPa

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Yield strength Rp0.2

20.0 °C

250 - 790 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.03E-5 1/K

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200.0 °C

1.03E-5 1/K

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300.0 °C

1.02E-5 1/K

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400.0 °C

1.02E-5 1/K

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500.0 °C

1.03E-5 1/K

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600.0 °C

1.1E-5 1/K

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Melting point

1450 °C

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Typical for Nickel Iron Alloy

Specific heat capacity

20.0 °C

500 J/(kg·K)

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Thermal conductivity

20.0 °C

17 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

4.3E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.02 %

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Chromium

0.7 - 1.5 %

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Iron

45 - 48 %

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Manganese

1 %

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Nickel

49.18 %

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Silicon

0.3 %

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