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Annealed and Aged (AT or TF00) C17500 Copper

TF00 C17500 copper is C17500 copper in the TF00 (precipitation hardened) temper. The graph bars on the material properties cards below compare TF00 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

17 %

Fatigue Strength

250 MPa 36 x 103 psi

Poisson's Ratio

0.34

Rockwell B Hardness

96

Shear Modulus

45 GPa 6.5 x 106 psi

Shear Strength

490 MPa 71 x 103 psi

Tensile Strength: Ultimate (UTS)

790 MPa 110 x 103 psi

Tensile Strength: Yield (Proof)

640 MPa 92 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

52 % IACS

Electrical Conductivity: Equal Weight (Specific)

53 % 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)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

1700 kJ/m3

Stiffness to Weight: Axial

7.5 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

25 points

Strength to Weight: Bending

21 points

Thermal Diffusivity

59 mm2/s

Thermal Shock Resistance

27 points

Alloy Composition

Copper (Cu)Cu 95.6 to 97.2
Cobalt (Co)Co 2.4 to 2.7
Beryllium (Be)Be 0.4 to 0.7
Silicon (Si)Si 0 to 0.2
Aluminum (Al)Al 0 to 0.2
Iron (Fe)Fe 0 to 0.1
Residualsres. 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