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CuMn12Ni2 Copper Based Alloys , 0.1mm Manganin Wire For Resistance Box
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Brand Name:OHMALLOY
Model Number:CM2W01B
Certification:SGS,CE,ISO
Price:negotiable
Payment Terms:, T/T, L/C
Supply Ability:80000Kg/Week
Company Data
Verified Supplier
Contact Person
Qiu
Business Type:
Manufacturer Distributor/Wholesaler Exporter Trading Company
Officials:
Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
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 .
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 | |
Company Profile
Ohmalloy Material Co.,Ltd
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.
Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.
Our company aims to be the best-quality alloy producer in the
world. We insist on developing the more advanced alloy strip
technology, to serve all the customer, improve people’s living
level, make a more green earth in the future
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