Shunt Manganin 43(Precision Resistance Alloy)
(Common Name: Manganin 43,CuMn12Ni4,Manganin,6J13 )
Shunt Manganin 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.
Shunt Manganin43 widely used for Shunt resistor with the highest requirements, shunt manganin43 has been used in precision built electrical components such as Wheatstone bridges, decade boxes, voltage drivers, potentiometers and resistance standards.
Normal composition%
| Nickel | 2~5 | 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) | 8.4 |
| Electrical resistivity at 20ºC (Ωmm2/m) | 0.43 |
| Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC | -7~40 |
| Thermal coefficient at 20ºC (WmK) | 22 |
| EMF vs Cu(μV/ºC )(0~100ºC ) | <2 |
| Coefficient of thermal expansion |
| Temperature | Thermal Expansion x10-6/K |
| 20 ºC- 100ºC | 18 |
| 20 ºC- 400ºC | 19.5 |
| Specific heat capacity |
| Temperature | 20ºC |
| J/gK | 0.41 |
| Melting point (ºC) | 960 |
| Element working temperature in air (ºC) | 5~45 |
| Magnetic properties | non-magnetic |
Corrosion resistance performance
| Alloys | Working In atmosphere at 20ºC | Working at max temperature 200ºC |
Air and oxygen contain
gases | gases with Nitrogen | gases with sulfur
oxidability | gases with sulfur
reductibility | carburization |
| Manganin43 | good | bad | bad | bad | bad | good |
Style of supply
| Alloys Name | Type | Dimension |
| Manganin43W | Wire | D=0.03mm~8mm |
| Manganin43R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| Manganin43S | Strip | W=8~200mm | T=0.1~3.0 |
| Manganin43F | Foil | W=6~120mm | T=0.003~0.1 |
| Manganin43B | Bar | Dia=8~100mm | L=50~1000 |