CuNi14 Resistance Alloy
Introduction
CuNi14 resistance alloy is a kind of copper nickel binary alloy, which has low temperature coefficient of resistance. It is used to make rheostat, shunt, controller and other low voltage electrical components with a maximum operating temperature of 300°C. For its good heat coefficient, this alloy is also widely used in low temperature heating cables of automobile heating cushion, railway snow melting and so on.
| Type | Size | ||
| Round wire | D=0.06mm~8mm | ||
| Flat wire | W=0.4~40mm | T=0.05~2.9mm | |
| Strip | W=8~200mm | T=0.1~3.0mm | |
| Foil | W=6~120mm | T=0.005~0.1mm | |
| Rod | Dia=8~100mm | L=50~1000mm | |
| Nickel | 14 | Manganese | 0.3 |
| Copper | Balance |
| Yield strength (Mpa) | Tensile strength (Mpa) | Elongation (%) | Density (g/cm3) | Resistivity (20℃) (Ω・mm2/m) | Resistance temperature coefficient (20℃~600℃) 10-5/℃ | Conductivity (20℃) (WmK) | Electromotive force against copper (μV/℃ ) (0~100℃) | Expansion coefficient (20 ℃- 400℃) x10-6/K | Specific heat capacity (20℃) (J/g・K) | Melting point (℃) | Max.operating temperature (℃) | Magnetism |
| 145 | 310 | 25 | 8.9 | 0.2 | ＜38 | 48 | ―28 | 17.5 | 0.380 | 1115 | 300 | Non magnetic |
| Atmospheric corrosion resistance at 20℃ | Corrosion resistance at maximum operating temperature | ||||
| Air and other oxygen-containing gases | Ammonia containing gas | Sulfurous gas | Sulfurous gas | Carburization | |
| (oxidizability) | (reducibility) | ||||
| Good | Common | Common | Common | Poor | Good |
Index
alloy strip, resistance wire
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