DIN 17742 Grade NiCr20AlSi soft annealed (+A)

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Description

The material NiCr20AlSi with the material number 2. 4872 is applied in the form of strips and wires (see also heating conductor alloys according to DIN 17470 or electrical resistance alloys according to DIN 17471) for heating conductors and resistors. The material possesses a high electric resistance. A determinate low temperature coefficient can be adjusted, it shows a low thermoelectric potential against copper, shows a high strength and is not ferro-magnetic. The alloy is highly creep-resistant and scale-resistant. Application particularly for high-ohm resistors for measuring purposes and precision resistors.

Related Standards

DIN 17742

Equivalent Materials

Diese Materialdaten wurden von WIAM zur Verfügung gestellt

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	20.0 °C	8 g/cm³ Show Material materials with Dichte of 8 g/cm³

Mechanisch

Property	Temperature	Value	Comment
Elastizitätsmodul	23.0 °C	150 - 245 GPa Show Material materials with Elastizitätsmodul of 150 - 245 GPa	Typical for Nickel Chromium Alloy
Elongation A100	20.0 °C	8 - 25 % Show Material materials with Elongation A100 of 8 - 25 %
Zugfestigkeit	20.0 °C	1000 MPa Show Material materials with Zugfestigkeit of 1000 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	23.0 °C	7.6E-6 - 1.7E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 7.6E-6 - 1.7E-5 1/K	Typical for Nickel Chromium Alloy
Schmelzpunkt		1400 °C Show Material materials with Schmelzpunkt of 1400 °C	Typical for Nickel Chromium Alloy
Spezifische Wärmekapazität	20.0 °C	460 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 460 J/(kg·K)
Wärmeleitfähigkeit	20.0 °C	14 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 14 W/(m·K)

Chemical properties

Property	Value
Aluminium	2.5 - 4 % Show Material materials with Aluminium of 2.5 - 4 %
Chrom	19 - 21 % Show Material materials with Chrom of 19 - 21 %
Eisen	1 % Show Material materials with Eisen of 1 %
Kohlenstoff	0.05 % Show Material materials with Kohlenstoff of 0.05 %
Kupfer	0.15 % Show Material materials with Kupfer of 0.15 %
Mangan	0.7 % Show Material materials with Mangan of 0.7 %
Nickel	73 % Show Material materials with Nickel of 73 %
Phosphor	0.02 % Show Material materials with Phosphor of 0.02 %
Schwefel	0.015 % Show Material materials with Schwefel of 0.015 %
Silizium	0.5 - 2 % Show Material materials with Silizium of 0.5 - 2 %