Nickel silver 65-10, UNS C74500, OSO70 Temper wire
Categories: Metal; Nonferrous Metal; Copper Alloy
Material Notes: Excellent corrosion resistance. Excellent cold workability. Fabricated by blanking, drawing, etching, forming and bending, heading and upsetting, roll threading and knurling, shearing, spinning, squeezing, stamping and swaging.

Applications: rivets, screws, slide fasteners, optical parts, etching stock, hollow ware, nameplates, platers' bars.

Test specimen: wire - 2mm diameter.
Key Words: NS103, ISO CuNi10Zn27, CEN CW401J
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Physical PropertiesMetricEnglishComments
Density 8.69 g/cc0.314 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 345 MPa50000 psi
Elongation at Break 50 %50 %In 50 mm
Modulus of Elasticity 120 GPa17400 ksi
Poissons Ratio 0.300.30calculated
Machinability 20 %20 %UNS C36000 (free-cutting brass) = 100%
Shear Modulus 46.0 GPa6670 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000192 ohm-cm0.0000192 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 16.4 µm/m-°C
@Temperature 20.0 - 300 °C		9.11 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.380 J/g-°C0.0908 BTU/lb-°F
Thermal Conductivity 45.0 W/m-K
@Temperature 20.0 °C		312 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Melting Point <= 1020 °C<= 1870 °F
Liquidus 1020 °C1870 °F
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 600 - 750 °C1110 - 1380 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 63.5 - 68.5 %63.5 - 68.5 %
Iron, Fe <= 0.25 %<= 0.25 %
Lead, Pb <= 0.10 %<= 0.10 %
Manganese, Mn <= 0.50 %<= 0.50 %
Nickel, Ni 9.0 - 11 %9.0 - 11 %
Other, total <= 0.50 %<= 0.50 %
Zinc, Zn 25 %25 %

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