Manganin® Spooled Wire

Manganin® spooled wire is a copper-manganese-nickel alloy known for its low temperature coefficient of resistance and long-term stability, making it a critical material in precision resistors, ammeter shunts, and cryogenic applications. Its unique properties are widely used in metrology, where stability under varying temperature conditions is essential, and in high-pressure shock wave studies, where it performs reliably in explosive or high-impact research environments. Additionally, Manganin® is ideal for low-temperature superconducting environments, minimizing thermal interference in sensitive experiments. The wire’s versatility extends to applications in strain gauges, high-precision sensors, and resistance thermometers, making it useful in fields such as aerospace, experimental physics, electrical testing, and even energy research, where accuracy and thermal stability are critical for successful outcomes.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

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