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CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box

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CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box

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Large Image :  CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box Get Best Price

Product Details:
Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: SGS,CE,ISO
Model Number: CM2W01B
Payment & Shipping Terms:
Minimum Order Quantity: 5
Price: negotiable
Packaging Details: Plastic packing inside, wooden box outside , choose the suitable packing, Alos it can be customized by the clients' demand.
Payment Terms: , T/T, L/C
Supply Ability: 80000Kg/Week
Detailed Product Description
Resistivity(μΩ.m): 0.47 Shape: Wire
Working Temperature: 5~45℃ Application: Resistance Box
Tensile Strength: 390Mpa Density (g/cm3): 8.44
High Light:

co ni alloy


copper nickel alloy

CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box


Normal Manganin 47(Precision Resistance Alloy)
(Common Name:Normal Manganin,Normal Manganin 47,CuMn12Ni2 )


    Normal Manganina 47 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.

Normal Manganina 47 is typically used for the manufacturing of resistance standards, precision wire wound resistors, potentiometers, shunts and other electrical and electronic components.

    Normal Manganin 47 widely used for precision resistors 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.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 .

CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box 0

Normal composition%

Nickel 2~3 Manganese 11~13
Copper Bal.    


Typical Mechanical properties(1.0mm)

Yield strength Tensile Strength Elongation
Mpa Mpa %
180 390 15


Typical Physical properties

Density (g/cm3) 8.44
Electrical resistivity at 20℃ (Ωmm2/m) 0.47
Temperature factor of resistivity(20℃~600℃)X10-5/℃ -3~20
Conductivity coefficient at 20℃ (WmK) 40
EMF vs Cu(μV/℃ )(0~100℃ ) 1



Coefficient of thermal expansion
Temperature Thermal Expansion x10-6/K
20 ℃- 400℃ 18


Specific heat capacity
Temperature 20℃
J/gK 0.41


Melting point (℃) 960
Element working temperature in air (℃) 5~45
Magnetic properties non-magnetic


Corrosion resistance performance

Alloys Working In atmosphere at 20℃ Working at max temperature 200℃

Air and oxygen contain


gases with Nitrogen

gases with sulfur


gases with sulfur


Manganin 47 good good good good bad good


Style of supply

Alloys Name Type Dimension
Manganin 47W Wire D=0.03mm~8mm
Manganin 47R Ribbon W=0.4~40 T=0.03~2.9mm
Manganin 47S Strip W=8~200mm T=0.1~3.0
Manganin 47F Foil W=6~120mm T=0.003~0.1
Manganin 47B Bar Dia=8~100mm L=50~1000


Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Matt

Tel: +8615900413548

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