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Shunt Manganin 43(Precision Resistance wire)(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
4
Manganese
12
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 20℃ (Ωmm2/m)
0.43
Temperature factor of resistivity(20℃~600℃)X10-5/℃
-7~40
Thermal coefficient at 20℃ (WmK)
22
EMF vs Cu(μV/℃ )(0~100℃ )
<2
Coefficient of thermal expansion
Temperature
Thermal Expansion x10-6/K
20 ℃- 100℃
18
20 ℃- 400℃
19.5
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
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