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Manganina 43 wire

Yuan Qiao Alloy Wire Co., Ltd

Manganina 43 wire

Place of Origin : China

Brand Name : Yuanqiao

Model Number : 0078

condition : annealed

surface : bright

Min order : 30kg

Size : 24~32 AWG

MOQ : 10kg

Price : 15USD/kg

Packaging Details : Wire on spool

Delivery Time : based on your quantity

Payment Terms : Western union or TT payment

Supply Ability : 20 tons each month

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Manganina 43 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.

Manganina 43 is typically used for the manufacturing of resistance standards, precision wire wound resistors, potentiometers, shunts and other electrical and electronic components.

The alloy's low emf vs. copper makes it ideal for use in electrical circuits, especially D.C., where a spurious thermal emf could cause malfunctioning of electronic equipment. Due to the low operating temperature, the temperature coefficient of resistance is controlled to be low over a range of 15 to 35°C (59 to 95°F)

Chemical composition

Ni %Mn %Cu %
Nominal composition4.011.0Bal.

Mechanical properties

Wire sizeYield StrengthTensile StrengthElongationHardness

Physical properties

Density g/cm38.4
Electrical resistivity at 20°C Ω mm2/m0.43
Temperature coefficient of resistance (15 - 35 °C) (x 10-6/K)0 ± 15
Coefficient of thermal expansion
Temperature °CThermal Expansion x 10-6/K
20 - 10018
Thermal conductivity
Temperature °C20
W m-1 K-122
Specific heat capacity
Temperature °C20
kJ kg-1 K-10.410
Melting point °C1020
Max continuous operating temperature in air °CRoom temperature
Magnetic propertiesThe material is non-magnetic

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