Resistalloy International Resistalloy 8020 Nickel Chromium Electrical Resistance Alloy

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Resistalloy International Resistalloy 8020 Nickel Chromium Electrical Resistance Alloy
Categories:	Metal; Electronic/Magnetic Alloy; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes:	Used mainly for electrical elements in both industrial and domestic applications. Industrial applications vary from small laboratory kilns to heavy-duty heat-treatment furnaces under all types of atmospheres. Available as wire and strip. Non-magnetic. Information provided by Resistalloy International Limited.
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Physical Properties	Metric	English	Comments

Density	8.30 g/cc	0.300 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	180	180
Tensile Strength, Ultimate	750 MPa	109000 psi
	100 MPa @Temperature 900 °C	14500 psi @Temperature 1650 °F
Tensile Strength, Yield	450 MPa	65300 psi
Elongation at Break	25 - 30 % @Thickness 50.0 mm	25 - 30 % @Thickness 1.97 in

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000109 ohm-cm	0.000109 ohm-cm	Temperature Factor is 1.04 at 800°C (1470°F). Temperature Factor is 1.05 at 1000°C (1830°F). Temperature Factor is 1.07 at 1200°C (2190°F).

Thermal Properties	Metric	English	Comments
CTE, linear	15.0 µm/m-°C @Temperature 20.0 - 250 °C	8.33 µin/in-°F @Temperature 68.0 - 482 °F
	16.0 µm/m-°C @Temperature 20.0 - 500 °C	8.89 µin/in-°F @Temperature 68.0 - 932 °F
	18.0 µm/m-°C @Temperature 20.0 - 1000 °C	10.0 µin/in-°F @Temperature 68.0 - 1830 °F
Specific Heat Capacity	0.460 J/g-°C	0.110 BTU/lb-°F
Thermal Conductivity	15.0 W/m-K	104 BTU-in/hr-ft²-°F
Melting Point	1400 °C	2550 °F
Maximum Service Temperature, Air	1200 °C	2190 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.88	0.88	Fully Oxidized

Component Elements Properties	Metric	English	Comments
Chromium, Cr	20 %	20 %
Nickel, Ni	80 %	80 %

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