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| Customization: | Available |
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| Color: | Copper |
| Strength Grade: | Hardness HRC30 |
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Manganese copper alloy resistance alloy 0.134mm in stock 10kg price
Common name:Manganin- wire is a copper-manganese-nickel alloy (CuMnNi alloy) for use at room temperature. The alloy is characterized by very low thermal electromotive force (emf) compared to copper.
Manganin wire widely used for low voltage instrumentation with the highest requirements, the resistors should be carefully stabilised and the application temperature should not exceed +60 °C.
Exceeding the maximum working temperature in air may result in a resistance drift generated by oxidizing.
Thus, the long-term stability can be affected negatively.
As a result, the resistivity as well as the temperature coefficient of the electric resistance may slightly change.
It is also used as low cost replacement material for silver solder for hard metal mounting.
Chemical Content, %
|
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
|||
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Cd |
Pb |
Hg |
Cr |
||||||
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2~5 |
11~13 |
<0.5 |
micro |
Bal |
- |
ND |
ND |
ND |
ND |
Mechanical Properties
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Max Continuous Service Temp |
0-100ºC |
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Resisivity at 20ºC |
0.44±0.04ohm mm2/m |
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Density |
8.4 g/cm3 |
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Thermal Conductivity |
40 KJ/m·h·ºC |
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Temp Coefficient of Resistance at 20 ºC |
0~40α×10-6/ºC |
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Melting Point |
1450ºC |
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Tensile Strength(Hard) |
585 Mpa(min) |
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Tensile Strength,N/mm2 Annealed,Soft |
390-535 |
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Elongation |
6~15% |
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EMF vs Cu, μV/ºC (0~100ºC) |
2(max) |
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Micrographic Structure |
austenite |
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Magnetic Property |
non |
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Hardness |
200-260HB |
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Micrographic Structure |
Ferrite |
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Magnetic Property |
Magnetic |
Resistance Alloy- Manganin Sizes / Temper Capabilities
Condition: Bright, Annealed, Soft
Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
Rod, Bar diameter 1mm-30mm
Strip: Thickness 0.01mm-7mm, Width 1mm-280mm
Enameled condition is available
Manganin Applications:
1; It is used for making wire wound precision resistance
2; Resistance boxes
3; Shunts for electrical measuring instruments
Manganin foil and wire is used in the manufacture of resistors, particularly ammeter shunts, because of its virtually zero temperature coefficient of resistance value and long term stability. Several Manganin resistors served as the legal standard for the ohm in the United States from 1901 to 1990. Manganin wire is also used as an electrical conductor in cryogenic systems, minimizing heat transfer between points which need electrical connections.
Manganin is also used in gauges for studies of high-pressure shock waves (such as those generated from the detonation of explosives) because it has low strain sensitivity but high hydrostatic pressure sensitivity.
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