Extra-Hard (H06) C73500 Nickel Silver
H06 C73500 nickel silver is C73500 nickel silver in the H06 (extra hard) temper. It has the highest strength compared to the other variants of C73500 nickel silver. The graph bars on the material properties cards below compare H06 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
88
Rockwell Superficial 30T Hardness
75
Shear Modulus
47 GPa 6.9 x 106 psi
Tensile Strength: Ultimate (UTS)
580 MPa 84 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
19 points
Strength to Weight: Bending
18 points
Thermal Diffusivity
10 mm2/s
Thermal Shock Resistance
19 points
Alloy Composition
| Cu | 70.5 to 73.5 | |
| Ni | 16.5 to 19.5 | |
| Zn | 5.7 to 13 | |
| Mn | 0 to 0.5 | |
| Fe | 0 to 0.25 | |
| Pb | 0 to 0.1 | |
| res. | 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