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Formula: Cu 86/Mn 12/Ni 2
Form: Rod
Material: Copper/Manganese/Nickel (Manganin®)
Commodity: Alloys
Temper: Annealed
Manganin® Rod, an alloy of copper, manganese, and nickel, is renowned for its stable resistivity, minimal temperature coefficient, and durability under electrical load. In rod form, it offers mechanical robustness and excellent machinability, making it suitable for precision-engineered resistive components and structural integration into electrical devices. Industries such as power electronics, instrumentation, and metrology benefit from Manganin® Rod for applications where long-term resistance stability and low thermal drift are essential. Specific uses include precision shunt resistors in energy meters, high-pressure and dynamic stress gauges, and current sampling devices engineered to resist electromagnetic interference. Research emphasizes the role of Manganin® Rod in reducing alternating magnetic field effects, ensuring accuracy in high-precision measurements. With its combination of electrical stability and structural integrity, Manganin® Rod remains indispensable in advancing both research tools and industrial systems requiring reliable resistive materials.

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

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Tolerances

Rod
Diameter =<10mm ±10%
Diameter >10mm ±5%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 50
Modulus of elasticity( GPa ) 124-159
Izod impact strength( J m⁻¹ ) 107
Tensile strength( MPa ) 300-600
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 43-48
Temperature coefficient( K⁻¹ ) 0.00001
Thermal Properties
Element Value
Maximum use temperature in air( C ) 300
Melting point( C ) 960
Thermal conductivity( W m⁻¹ K⁻¹ ) 22@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 14-19@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.4

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