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Ohmalloy Material Co.,Ltd

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Good quality Bimetallic Strip for sales
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Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors

China Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier
Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors supplier

Large Image :  Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors

Product Details:

Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: SGS,ISO
Model Number: CuMn12Ni2

Payment & Shipping Terms:

Minimum Order Quantity: 10KG
Price: negotiable
Packaging Details: in spool/ carton packed
Delivery Time: 7-10 days
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 5 Tons per month
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Detailed Product Description
Resistivity(μΩ.cm):: 8.44 Electrical Resistivity At 20℃ (Ωmm2/m):: 0.47
EMF Vs Cu(μV/℃ )(0~100℃ ): 1 Melting Point (℃):: 960
Tensile Strength: 390Mpa Elongation: 15%

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 .

 

Precision resistors

Normal Manganin 47 Precision Alloys Metal Copper Resistance For Wound Resistors

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

gases with Nitrogen

gases with sulfur

oxidability

gases with sulfur

reductibility

carburization
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: Mr. Qiu

Tel: +8613795230939

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