Fully Cold-Worked (H or TD04) C17500 Copper
TD04 C17500 copper is C17500 copper in the TD04 (solution heat treated and cold worked to full-hard) temper. It has the lowest ductility compared to the other variants of C17500 copper. The graph bars on the material properties cards below compare TD04 C17500 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
6.0 %
Fatigue Strength
210 MPa 30 x 103 psi
Poisson's Ratio
0.34
Rockwell B Hardness
77
Shear Modulus
45 GPa 6.5 x 106 psi
Shear Strength
300 MPa 44 x 103 psi
Tensile Strength: Ultimate (UTS)
520 MPa 75 x 103 psi
Tensile Strength: Yield (Proof)
470 MPa 67 x 103 psi
Thermal Properties
Latent Heat of Fusion
220 J/g
Maximum Temperature: Mechanical
220 °C 430 °F
Melting Completion (Liquidus)
1060 °C 1940 °F
Melting Onset (Solidus)
1020 °C 1870 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
200 W/m-K 120 BTU/h-ft-°F
Thermal Expansion
18 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
24 % IACS
Electrical Conductivity: Equal Weight (Specific)
24 % IACS
Otherwise Unclassified Properties
Base Metal Price
60 % relative
Density
8.9 g/cm3 550 lb/ft3
Embodied Carbon
4.7 kg CO2/kg material
Embodied Energy
73 MJ/kg 31 x 103 BTU/lb
Embodied Water
320 L/kg 38 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
30 MJ/m3
Resilience: Unit (Modulus of Resilience)
910 kJ/m3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
16 points
Strength to Weight: Bending
16 points
Thermal Diffusivity
59 mm2/s
Thermal Shock Resistance
18 points
Alloy Composition
| Cu | 95.6 to 97.2 | |
| Co | 2.4 to 2.7 | |
| Be | 0.4 to 0.7 | |
| Si | 0 to 0.2 | |
| Al | 0 to 0.2 | |
| Fe | 0 to 0.1 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B441: Standard Specification for Copper-Cobalt-Beryllium, Copper-Nickel-Beryllium, and Copper-Nickel-Lead-Beryllium Rod and Bar (UNS Nos. C17500, C17510, and C17465)
Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993