Sandvik Nikrothal 70 Resistance Wire

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Sandvik Nikrothal 70 Resistance Wire
Categories:	Metal; Nonferrous Metal; Nickel Alloy
Material Notes:	The material is used for electrical heating in industrial furnaces. It is particularly well suited for reducing atmospheres, as it is not subject to "green root". Information provided by Sandvik
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Physical Properties	Original Value	Comments

Density	8.10 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Vickers	185 @Thickness 1.00 mm
	185 @Thickness 4.00 mm
Tensile Strength, Ultimate	800 MPa @Thickness 4.00 mm
	820 MPa @Thickness 1.00 mm
Tensile Strength, Yield	425 MPa @Strain 0.2 %, Thickness 4.00 mm
	430 MPa @Strain 0.2 %, Thickness 1.00 mm
Elongation at Break	30 % @Thickness 1.00 mm
	30 % @Thickness 4.00 mm

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000118 ohm-cm
	0.000119 ohm-cm @Temperature 100 °C
	0.000120 ohm-cm @Temperature 200 °C
	0.000121 ohm-cm @Temperature 300 °C
	0.000122 ohm-cm @Temperature 400 °C
	0.000122 ohm-cm @Temperature 700 °C
	0.000122 ohm-cm @Temperature 800 °C
	0.000122 ohm-cm @Temperature 900 °C
	0.000124 ohm-cm @Temperature 1000 °C
	0.000124 ohm-cm @Temperature 1100 °C
	0.000124 ohm-cm @Temperature 500 °C
	0.000124 ohm-cm @Temperature 600 °C
	0.000125 ohm-cm @Temperature 1200 °C

Thermal Properties	Original Value	Comments
CTE, linear	13.7 µm/m-°C @Temperature 20.0 - 250 °C
	14.6 µm/m-°C @Temperature 20.0 - 500 °C
	15.8 µm/m-°C @Temperature 20.0 - 750 °C
	17.1 µm/m-°C @Temperature 20.0 - 1000 °C
Specific Heat Capacity	0.460 J/g-°C @Temperature 20.0 °C
	0.460 J/g-°C @Temperature 100 °C
	0.480 J/g-°C @Temperature 200 °C
	0.500 J/g-°C @Temperature 300 °C
	0.530 J/g-°C @Temperature 400 °C
	0.550 J/g-°C @Temperature 500 °C
	0.580 J/g-°C @Temperature 600 °C
	0.600 J/g-°C @Temperature 700 °C
	0.630 J/g-°C @Temperature 800 °C
	0.650 J/g-°C @Temperature 900 °C
	0.670 J/g-°C @Temperature 1000 °C
	0.710 J/g-°C @Temperature 1100 °C
Thermal Conductivity	13.0 W/m-K @Temperature 20.0 °C
	13.0 W/m-K @Temperature 100 °C
	14.0 W/m-K @Temperature 200 °C
	15.0 W/m-K @Temperature 300 °C
	17.0 W/m-K @Temperature 400 °C
	19.0 W/m-K @Temperature 500 °C
	20.0 W/m-K @Temperature 600 °C
	22.0 W/m-K @Temperature 700 °C
	24.0 W/m-K @Temperature 800 °C
	26.0 W/m-K @Temperature 900 °C
	28.0 W/m-K @Temperature 1000 °C
	29.0 W/m-K @Temperature 1100 °C
Melting Point	1380 °C
Maximum Service Temperature, Air	1250 °C

Optical Properties	Original Value	Comments
Emissivity (0-1)	0.88	fully oxidized

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.15 %
Chromium, Cr	29 - 32 %
Iron, Fe	>= 5.0 %
Manganese, Mn	<= 1.0 %
Nickel, Ni	>= 59.85 %
Silicon, Si	0.50 - 2.0 %

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NSANDV079 / 18973

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