CuMn12Ni4 Alloy
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Introduction
Manganese copper alloy used for shunt can be used at room temperature. This alloy is characterized by low electromotive force.
| Alloy | Type | Size | ||
| Manganin43W | Round wire | D=0.03mm~8mm | | |
| Manganin43R | Flat wire | W=0.4~40 | T=0.03~2.9mm | |
| Manganin43S | Strip | W=8~200mm | T=0.1~3.0 | |
| Manganin43F | Foil | W=6~120mm | T=0.003~0.1 | |
| Manganin43B | Rod | Dia=8~100mm | L=50~1000 | |
Application
Manganese copper alloy is widely used in shunt resistor with high requirement, and built-in precision electrical element, like: electric bridge, potentiometer, etc.
| 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 ℃- 100℃) x10-6/K | Expansion coefficient (20 ℃- 400℃) x10-6/K | Expansion coefficient (20 ℃- 100℃) x10-6/K | Melting point (℃) | Max.operating temperature (℃) | Magnetism |
| 180 | 390 | 15 | 8.4 | 0.43 | -7~40 | 22 | ＜2 | 18 | 19.5 | 0.41 | 960 | 5~45 | Non-magnetism |
| Atmospheric corrosion resistance at 20℃ | Corrosion resistance at maximum operating temperature | ||||
| Air and other oxygen-containing gases | oxygen-containing gas | Sulfurous gas | Sulfurous gas | carburization | |
| (oxidizability) | (reducibility) | ||||
| Good | Poor | Poor | Poor | Poor | Good |
Index
alloy strip, resistance alloy
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