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Half-Hard (H02) C76200 Nickel Silver

H02 C76200 nickel silver is C76200 nickel silver in the H02 (half hard) temper. The graph bars on the material properties cards below compare H02 C76200 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

Poisson's Ratio

0.31

Rockwell B Hardness

85

Rockwell Superficial 30T Hardness

73

Shear Modulus

44 GPa 6.4 x 106 psi

Tensile Strength: Ultimate (UTS)

570 MPa 83 x 103 psi

Thermal Properties

Latent Heat of Fusion

190 J/g

Maximum Temperature: Mechanical

170 °C 330 °F

Melting Completion (Liquidus)

1030 °C 1880 °F

Melting Onset (Solidus)

980 °C 1800 °F

Specific Heat Capacity

390 J/kg-K 0.094 BTU/lb-°F

Thermal Conductivity

45 W/m-K 26 BTU/h-ft-°F

Thermal Expansion

19 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

9.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

9.8 % IACS

Otherwise Unclassified Properties

Base Metal Price

29 % relative

Density

8.2 g/cm3 520 lb/ft3

Embodied Carbon

3.6 kg CO2/kg material

Embodied Energy

57 MJ/kg 25 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Stiffness to Weight: Axial

7.8 points

Stiffness to Weight: Bending

20 points

Strength to Weight: Axial

19 points

Strength to Weight: Bending

19 points

Thermal Diffusivity

14 mm2/s

Thermal Shock Resistance

18 points

Alloy Composition

Copper (Cu) 57 to 61
Zinc (Zn) 24.2 to 32
Nickel (Ni) 11 to 13.5
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

Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993