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Quarter-Hard (H01) C73500 Nickel Silver

H01 C73500 nickel silver is C73500 nickel silver in the H01 (quarter hard) temper. It has the second lowest strength compared to the other variants of C73500 nickel silver. The graph bars on the material properties cards below compare H01 C73500 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

130 GPa 18 x 106 psi

Poisson's Ratio

0.33

Rockwell B Hardness

73

Rockwell Superficial 30T Hardness

65

Shear Modulus

47 GPa 6.9 x 106 psi

Tensile Strength: Ultimate (UTS)

430 MPa 62 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

220 °C 420 °F

Melting Completion (Liquidus)

1140 °C 2080 °F

Melting Onset (Solidus)

1090 °C 2000 °F

Specific Heat Capacity

400 J/kg-K 0.095 BTU/lb-°F

Thermal Conductivity

36 W/m-K 21 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

6.5 % IACS

Electrical Conductivity: Equal Weight (Specific)

6.7 % IACS

Otherwise Unclassified Properties

Base Metal Price

35 % relative

Density

8.7 g/cm3 540 lb/ft3

Embodied Carbon

4.0 kg CO2/kg material

Embodied Energy

61 MJ/kg 26 x 103 BTU/lb

Embodied Water

300 L/kg 36 gal/lb

Common Calculations

Stiffness to Weight: Axial

8.0 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

14 points

Strength to Weight: Bending

15 points

Thermal Diffusivity

10 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Copper (Cu) 70.5 to 73.5
Nickel (Ni) 16.5 to 19.5
Zinc (Zn) 5.7 to 13
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

Further Reading

ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001