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Annealed (OS070) C75400 Nickel Silver

OS070 C75400 nickel silver is C75400 nickel silver in the OS070 (annealed to 0.070mm grain size) temper. It has the lowest strength and highest ductility compared to the other variants of C75400 nickel silver.

The graph bars on the material properties cards below compare OS070 C75400 nickel silver to: wrought copper-nickels (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

120 GPa 17 x 106 psi

Elongation at Break

43 %

Poisson's Ratio

0.32

Rockwell F Hardness

69

Rockwell Superficial 30T Hardness

27

Shear Modulus

46 GPa 6.6 x 106 psi

Shear Strength

250 MPa 37 x 103 psi

Tensile Strength: Ultimate (UTS)

370 MPa 53 x 103 psi

Tensile Strength: Yield (Proof)

130 MPa 20 x 103 psi

Thermal Properties

Latent Heat of Fusion

200 J/g

Maximum Temperature: Mechanical

190 °C 370 °F

Melting Completion (Liquidus)

1080 °C 1970 °F

Melting Onset (Solidus)

1040 °C 1900 °F

Specific Heat Capacity

390 J/kg-K 0.094 BTU/lb-°F

Thermal Conductivity

36 W/m-K 21 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

7.4 % IACS

Otherwise Unclassified Properties

Base Metal Price

32 % relative

Density

8.5 g/cm3 530 lb/ft3

Embodied Carbon

3.8 kg CO2/kg material

Embodied Energy

59 MJ/kg 25 x 103 BTU/lb

Embodied Water

300 L/kg 36 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

75 kJ/m3

Stiffness to Weight: Axial

7.9 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

12 points

Strength to Weight: Bending

13 points

Thermal Diffusivity

11 mm2/s

Thermal Shock Resistance

12 points

Alloy Composition

Copper (Cu) 63.5 to 66.5
Zinc (Zn) 16.2 to 22.5
Nickel (Ni) 14 to 16
Manganese (Mn) 0 to 0.5
Iron (Fe) 0 to 0.25
Lead (Pb) 0 to 0.1
Residuals 0 to 0.5

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions