As Hot Rolled (M20) C76200 Nickel Silver
M20 C76200 nickel silver is C76200 nickel silver in the M20 (as hot rolled) condition. It has the second lowest strength compared to the other variants of C76200 nickel silver. The graph bars on the material properties cards below compare M20 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
Shear Modulus
44 GPa 6.4 x 106 psi
Tensile Strength: Ultimate (UTS)
450 MPa 65 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
15 points
Strength to Weight: Bending
16 points
Thermal Diffusivity
14 mm2/s
Thermal Shock Resistance
14 points
Alloy Composition
| Cu | 57 to 61 | |
| Zn | 24.2 to 32 | |
| Ni | 11 to 13.5 | |
| 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
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