CuMn12Ni4 Alloy

Introduction
Manganese copper alloy used for shunt can be used at room temperature. This alloy is characterized by low electromotive force.

Type of supply

Alloy	Type	Size
Manganin43W	Round wire	D=0.03mm~8mm
Manganin43R	Flat wire	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	Rod	Dia=8~100mm	L=50~1000

Application
Manganese copper alloy is widely used in shunt resistor with high requirement, and built-in precision electrical element, like: electric bridge, potentiometer, etc.

Physical parameters

Yield strength (Mpa)	Tensile strength (Mpa)	Elongation (%)	Density (g/cm³)	Resistivity (20℃) (Ω・mm²/m)	Resistance temperature coefficient (20℃~600℃) 10-5/℃	Conductivity (20℃) (WmK)	Electromotive force against copper (μV/℃ ) (0~100℃)	Expansion coefficient (20 ℃- 100℃) x10-6/K	Expansion coefficient (20 ℃- 400℃) x10-6/K	Expansion coefficient (20 ℃- 100℃) x10-6/K	Melting point (℃)	Max.operating temperature (℃)	Magnetism
180	390	15	8.4	0.43	-7~40	22	＜2	18	19.5	0.41	960	5~45	Non-magnetism

Corrosion resistance

Atmospheric corrosion resistance at 20℃	Corrosion resistance at maximum operating temperature
	Air and other oxygen-containing gases	oxygen-containing gas	Sulfurous gas	Sulfurous gas	carburization
			(oxidizability)	(reducibility)
Good	Poor	Poor	Poor	Poor	Good

Index
alloy strip, resistance alloy

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