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Special Metals BRIGHTRAY® Alloy C Electrical Resistance Alloy

Category Metal , Electronic/Magnetic Alloy , Nonferrous Metal , Nickel Alloy , Superalloy
Manufacturer Special Metals (includes the former Inco Alloys International Inc.)
Trade Name BRIGHTRAY®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Special Metals BRIGHTRAY® Alloy C Electrical Resistance Alloy.pdf
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Material Notes:
A nickel-chromium electrical-resistance alloy for use at operating temperatures up to 2100°F (1150°C). It contains rare-earth additions for increased oxidation resistance, especially under conditions of frequent switching or wide temperature fluctuations. The alloy has a low temperature coefficient of resistance, making it suitable for control resistors. Used for heating elements in domestic appliances and industrial equipment. The standard product form is wire.Data provided by the manufacturer, Special Metals.
Physical Properties Metric English Comments
Density 8.31 g/cc
0.300 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 760 MPa
110000 psi
Annealed prior to test
580 MPa

@Temperature 550 °C
84100 psi

@Temperature 1020 °F
Annealed prior to test
Tensile Strength, Yield 330 MPa

@Strain 0.200 %
47900 psi

@Strain 0.200 %
Annealed prior to test
210 MPa

@Strain 0.200 %,
Temperature 550 °C
30500 psi

@Strain 0.200 %,
Temperature 1020 °F
Annealed prior to test
Thermal Properties Metric English Comments
CTE, linear 12.5 µm/m-°C

@Temperature 20.0 - 100 °C
6.94 µin/in-°F

@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.419 J/g-°C
0.100 BTU/lb-°F
Melting Point 1380 - 1400 °C
2520 - 2550 °F
Solidus 1380 °C
2520 °F
Liquidus 1400 °C
2550 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.15 %
<= 0.15 %
Chromium, Cr 19 - 21 %
19 - 21 %
Iron, Fe <= 1.0 %
<= 1.0 %
Manganese, Mn <= 2.5 %
<= 2.5 %
Nickel, Ni 75 %
75 %
Including Cobalt, calculated as remainder
Silicon, Si 0.75 - 1.75 %
0.75 - 1.75 %
Sulfur, S <= 0.010 %
<= 0.010 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000108 ohm-cm
0.000108 ohm-cm
Temperature coefficient of resistance is 140 µOhm/Ohm-°C in the range 25-500°C.
Magnetic Permeability 1.0005
1.0005
at 200 oersted (15.9 kA/m)
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