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California Fine Wire is a manufacturer of Beryllium (BE) Copper Alloy 25 CDA 172 fine wire. Our specialty is supplying Beryllium (BE) Copper Alloy 25 CDA 172 wire in the smallest diameters on the market.
Unit of Measure

Specifications

Brands

 N/A California Fine Wire Co.

Industry Standards

 N/A American Society for Testing and Materials (ASTM) B-197

Second Element

 N/A Beryllium (Be) Copper (Cu)

Electrical

Specific Resistance

 N/A 46.200 Ohm·cm/ft

Specific Resistivity

 N/A 7.68 µOhm·cm²/cm

Commercial Resistance Tolerance (On Sizes below 0.020)

 N/A 3.00 %

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

 N/A 0.0015 Ohm/Ohm/ºC

Thermal Electromotive Force (EMF) Vs Copper

 N/A -0.014

Physical

Density

 N/A 8.25 g/cm³

Youngs Modulus

 N/A 18 x 106 psi

Specific Heat at 20 Degree Celsius (ºC) Temperature

 N/A 0.100 cal/g

Thermal Conductivity

 N/A 1.069000 W/cm/ºC

Coefficient of Linear Expansion

 N/A 17.6 x 10-6 in/in ºC

Melting Point

 N/A 865.00 ºC

Composition

Element

 N/A Beryllium (Be) Copper (Cu)

Nominal Beryllium (Be) Composition

 N/A 1.8000 %

Nominal Copper (Cu) Composition

 N/A 98.1000 %

Tensile Strength

Hard Ultimate Tensile Strength (UTS)

 N/A 150000 psi

Annealed Ultimate Tensile Strength (UTS)

 N/A 68000 psi

Hard Yield Tensile Strength (YTS)

 N/A 125000 psi

Annealed Yield Tensile Strength (YTS)

 N/A 28000 psi

Note

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