TD02 Tempered C18400 Copper
TD02 C18400 copper is C18400 copper in the TD02 (solution heat treated and cold worked to half-hard) temper. It has the second highest strength compared to the other variants of C18400 copper. The graph bars on the material properties cards below compare TD02 C18400 copper to: wrought 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 17 x 106 psi
Elongation at Break
26 %
Poisson's Ratio
0.34
Rockwell B Hardness
84
Shear Modulus
44 GPa 6.3 x 106 psi
Shear Strength
310 MPa 44 x 103 psi
Tensile Strength: Ultimate (UTS)
480 MPa 69 x 103 psi
Tensile Strength: Yield (Proof)
470 MPa 68 x 103 psi
Thermal Properties
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C 390 °F
Melting Completion (Liquidus)
1080 °C 1970 °F
Melting Onset (Solidus)
1070 °C 1960 °F
Specific Heat Capacity
390 J/kg-K 0.093 BTU/lb-°F
Thermal Conductivity
320 W/m-K 190 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
80 % IACS
Electrical Conductivity: Equal Weight (Specific)
81 % IACS
Otherwise Unclassified Properties
Base Metal Price
31 % relative
Density
8.9 g/cm3 560 lb/ft3
Embodied Carbon
2.6 kg CO2/kg material
Embodied Energy
41 MJ/kg 18 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m3
Resilience: Unit (Modulus of Resilience)
950 kJ/m3
Stiffness to Weight: Axial
7.3 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
15 points
Thermal Diffusivity
94 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Cu | 97.2 to 99.6 | |
| Cr | 0.4 to 1.2 | |
| Zn | 0 to 0.7 | |
| Fe | 0 to 0.15 | |
| Si | 0 to 0.1 | |
| P | 0 to 0.050 | |
| Li | 0 to 0.050 | |
| Ca | 0 to 0.0050 | |
| As | 0 to 0.0050 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013