UNS C96300 Copper-Nickel
C96300 copper-nickel is a copper-nickel alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has a fairly high melting temperature and a moderately high base cost among cast copper-nickels.
The graph bars on the material properties cards below compare C96300 copper-nickel to: cast 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
Brinell Hardness
150
Elastic (Young's, Tensile) Modulus
130 GPa 19 x 106 psi
Elongation at Break
11 %
Poisson's Ratio
0.33
Shear Modulus
49 GPa 7.1 x 106 psi
Tensile Strength: Ultimate (UTS)
580 MPa 84 x 103 psi
Tensile Strength: Yield (Proof)
430 MPa 63 x 103 psi
Thermal Properties
Latent Heat of Fusion
230 J/g
Maximum Temperature: Mechanical
240 °C 460 °F
Melting Completion (Liquidus)
1200 °C 2190 °F
Melting Onset (Solidus)
1150 °C 2100 °F
Specific Heat Capacity
400 J/kg-K 0.1 BTU/lb-°F
Thermal Conductivity
37 W/m-K 21 BTU/h-ft-°F
Thermal Expansion
16 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
6.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
6.1 % IACS
Otherwise Unclassified Properties
Base Metal Price
42 % relative
Density
8.9 g/cm3 550 lb/ft3
Embodied Carbon
5.1 kg CO2/kg material
Embodied Energy
76 MJ/kg 33 x 103 BTU/lb
Embodied Water
290 L/kg 34 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
59 MJ/m3
Resilience: Unit (Modulus of Resilience)
720 kJ/m3
Stiffness to Weight: Axial
8.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
17 points
Thermal Diffusivity
10 mm2/s
Thermal Shock Resistance
20 points
Alloy Composition
Among cast copper alloys, the composition of C96300 copper-nickel is notable for containing a comparatively high amount of nickel (Ni). Nickel is used to improve strength (particularly at elevated temperatures) and corrosion resistance. It also creates the need for additional care during casting.
| Cu | 72.3 to 80.8 | |
| Ni | 18 to 22 | |
| Nb | 0.5 to 1.5 | |
| Fe | 0.5 to 1.5 | |
| Mn | 0.25 to 1.5 | |
| Si | 0 to 0.5 | |
| C | 0 to 0.15 | |
| P | 0 to 0.020 | |
| S | 0 to 0.020 | |
| Pb | 0 to 0.010 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993