TH01 Tempered C18400 Copper
TH01 C18400 copper is C18400 copper in the TH01 (quarter-hard and precipitation heat treated) temper. It has the highest strength and lowest ductility compared to the other variants of C18400 copper. The graph bars on the material properties cards below compare TH01 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
13 %
Poisson's Ratio
0.34
Rockwell B Hardness
81
Shear Modulus
44 GPa 6.3 x 106 psi
Shear Strength
300 MPa 43 x 103 psi
Tensile Strength: Ultimate (UTS)
490 MPa 71 x 103 psi
Tensile Strength: Yield (Proof)
480 MPa 69 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)
63 MJ/m3
Resilience: Unit (Modulus of Resilience)
980 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
16 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