TH04 Tempered C17300 Copper
TH04 C17300 copper is C17300 copper in the TH04 (full-hard and precipitation heat treated) temper. It has the highest strength and lowest ductility compared to the other variants of C17300 copper. The graph bars on the material properties cards below compare TH04 C17300 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
3.0 %
Poisson's Ratio
0.33
Rockwell C Hardness
41
Shear Modulus
45 GPa 6.5 x 106 psi
Shear Strength
790 MPa 110 x 103 psi
Tensile Strength: Ultimate (UTS)
1380 MPa 200 x 103 psi
Tensile Strength: Yield (Proof)
1200 MPa 170 x 103 psi
Thermal Properties
Latent Heat of Fusion
230 J/g
Maximum Temperature: Mechanical
270 °C 530 °F
Melting Completion (Liquidus)
980 °C 1800 °F
Melting Onset (Solidus)
870 °C 1590 °F
Specific Heat Capacity
380 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
110 W/m-K 62 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
22 % IACS
Electrical Conductivity: Equal Weight (Specific)
23 % IACS
Otherwise Unclassified Properties
Density
8.8 g/cm3 550 lb/ft3
Embodied Carbon
9.4 kg CO2/kg material
Embodied Energy
150 MJ/kg 63 x 103 BTU/lb
Embodied Water
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
40 MJ/m3
Stiffness to Weight: Axial
7.6 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
44 points
Strength to Weight: Bending
31 points
Thermal Diffusivity
32 mm2/s
Thermal Shock Resistance
48 points
Alloy Composition
| Cu | 95.5 to 97.8 | |
| Be | 1.8 to 2.0 | |
| Ni | 0.2 to 0.6 | |
| Pb | 0.2 to 0.6 | |
| Fe | 0 to 0.4 | |
| Si | 0 to 0.2 | |
| Al | 0 to 0.2 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B196: Standard Specification for Copper-Beryllium Alloy Rod and Bar
Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001