CuNi44 Resistance Alloy
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Introduction
CuNi44 resistance alloy has high resistivity, which contains 40% nickel and 1.5% manganese. It has low temperature coefficient of resistivity and medium resistivity of 0.48μΩ·m or 0.49μΩ·m. It can be used in a wide range of temperature with good processing and welding performances.
| Type | Size | ||
| Round wire | D=0.03mm~8mm | ||
| Flat wire | W=0.4~40mm | T=0.03~2.9mm | |
| Strip | W=8~200mm | T=0.1~3.0mm | |
| Foil | W=6~120mm | T=0.003~0.1mm | |
| Rod | Dia=8~100mm | L=50~1000mm | |
Application
CuNi44 resistance alloy is suitable to be used in alternating current circuit as precision resistor, slide resistor, resistance strain gauge and so on. Constantane deformable material and CuNi44 resistance alloy can also be used in thermocouple and thermocouple compensating cable material.
| Nickel | 44 | Manganese | 1.5 |
| 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 |
| 90 | 210 | 25 | 8.9 | 0.49 | -6 | 23 | -43 | 15 | 0.41 | 1280 | 400 | 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 | Good | Good | Good | Poor | Good |
Index
alloy strip, resistance wire
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