As Cast C82800 Copper
As-cast C82800 copper is C82800 copper in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare as-cast C82800 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
85
Shear Modulus
46 GPa 6.7 x 106 psi
Tensile Strength: Ultimate (UTS)
670 MPa 97 x 103 psi
Tensile Strength: Yield (Proof)
380 MPa 55 x 103 psi
Thermal Properties
Latent Heat of Fusion
240 J/g
Maximum Temperature: Mechanical
310 °C 580 °F
Melting Completion (Liquidus)
930 °C 1710 °F
Melting Onset (Solidus)
890 °C 1630 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
120 W/m-K 71 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
18 % IACS
Electrical Conductivity: Equal Weight (Specific)
19 % IACS
Otherwise Unclassified Properties
Density
8.7 g/cm3 540 lb/ft3
Embodied Carbon
12 kg CO2/kg material
Embodied Energy
190 MJ/kg 82 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m3
Resilience: Unit (Modulus of Resilience)
590 kJ/m3
Stiffness to Weight: Axial
7.8 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
36 mm2/s
Thermal Shock Resistance
23 points
Alloy Composition
| Cu | 94.6 to 97.2 | |
| Be | 2.5 to 2.9 | |
| 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