As Cast C82500 Copper
As-cast C82500 copper is C82500 copper in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare as-cast C82500 copper to: cast coppers (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 18 x 106 psi
Elongation at Break
20 %
Poisson's Ratio
0.33
Rockwell B Hardness
82
Shear Modulus
45 GPa 6.6 x 106 psi
Tensile Strength: Ultimate (UTS)
550 MPa 80 x 103 psi
Tensile Strength: Yield (Proof)
310 MPa 45 x 103 psi
Thermal Properties
Latent Heat of Fusion
240 J/g
Maximum Temperature: Mechanical
280 °C 540 °F
Melting Completion (Liquidus)
980 °C 1800 °F
Melting Onset (Solidus)
860 °C 1570 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
130 W/m-K 75 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
20 % IACS
Electrical Conductivity: Equal Weight (Specific)
21 % IACS
Otherwise Unclassified Properties
Density
8.8 g/cm3 550 lb/ft3
Embodied Carbon
10 kg CO2/kg material
Embodied Energy
160 MJ/kg 68 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
94 MJ/m3
Resilience: Unit (Modulus of Resilience)
400 kJ/m3
Stiffness to Weight: Axial
7.7 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
17 points
Thermal Diffusivity
38 mm2/s
Thermal Shock Resistance
19 points
Alloy Composition
| Cu | 95.3 to 97.8 | |
| Be | 1.9 to 2.3 | |
| Co | 0.15 to 0.7 | |
| Si | 0.2 to 0.35 | |
| Fe | 0 to 0.25 | |
| Ni | 0 to 0.2 | |
| Al | 0 to 0.15 | |
| Ti | 0 to 0.12 | |
| Cr | 0 to 0.1 | |
| Sn | 0 to 0.1 | |
| Zn | 0 to 0.1 | |
| Pb | 0 to 0.020 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001