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California Fine Wire is a manufacturer of Cupro Nickel 70-30 fine wire. Our specialty is supplying Cupro Nickel 70-30 wire in the smallest diameters on the market.
Unit of Measure

Specifications

Brands

 N/A California Fine Wire Co.

Second Element

 N/A Copper (Cu) Iron (Fe) Nickel (Ni)

Electrical

Specific Resistivity

 N/A 37.4 µOhm·cm²/cm

Commercial Resistance Tolerance (On Sizes below 0.020)

 N/A 3.00 %

Thermal Electromotive Force (EMF) Vs Copper

 N/A -0.014

Specific Resistance

 N/A 225.000 Ohm·cm/ft

Temperature Coefficient of Resistance (0 to 100 Degree Celsius (ºC) Temperature)

 N/A 0.000048 Ohm/Ohm/ºC

Physical

Density

 N/A 8.94 g/cm³

Youngs Modulus

 N/A 22 x 106 psi

Specific Heat at 20 Degree Celsius (ºC) Temperature

 N/A 0.090 cal/g

Thermal Conductivity

 N/A 0.28800 W/cm/ºC

Coefficient of Linear Expansion

 N/A 16.2 x 10-6 in/in ºC

Melting Point

 N/A 1170.00 ºC

Composition

Element

 N/A Copper (Cu) Iron (Fe) Nickel (Ni)

Nominal Copper (Cu) Composition

 N/A 69.5000 %

Nominal Nickel (Ni) Composition

 N/A 30.0000 %

Maximum Iron (Fe) Composition

 N/A 0.5000 %

Tensile Strength

Hard Ultimate Tensile Strength (UTS)

 N/A 70000 psi

Annealed Ultimate Tensile Strength (UTS)

 N/A 45000 psi

Hard Yield Tensile Strength (YTS)

 N/A 60000 psi

Annealed Yield Tensile Strength (YTS)

 N/A 35000 psi

Note

 N/A All values may vary dependent on specific design and usage.