DIN 17741 Grade Ni99.4Fe

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Description

Ni99.4Fe is a resistance alloy. With wire, the attainable tensile strength is 450 N/mm². The alloy distinguishes itself by a very high and exactly defined temperature coefficient of the electric resistance that is standardized according to DIN 43760. The upper application temperature in air is 750 °C, and it is 250 degrees C in case of an application for electric resistance thermometers according to DIN 43760. Ni99.4Fe can be soft-soldered and brazed without difficulty. All known welding methods are applicable. Application: Exclusively for the manufacturing of temperature-sensitive elements and electric resistance thermometers.

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

8.9 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

190 - 220 GPa

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Typical for Pure/Low Nickel Alloy

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

8.5E-6 - 1.4E-5 1/K

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Typical for Pure/Low Nickel Alloy

Max service temperature, long

0 - 750 °C

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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

470 J/(kg·K)

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Thermal conductivity

20.0 °C

70 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.6E-8 Ω·m

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Chemical properties

PropertyValue

Carbon

0.05 %

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Cobalt

1 %

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Copper

0.05 %

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Iron

0.2 - 0.6 %

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Magnesium

0.05 %

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Manganese

0.05 %

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Nickel

98.4 %

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Silicon

0.02 %

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Sulfur

5E-3 %

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