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Annealed and Aged (AT or TF00) C18400 Copper

TF00 C18400 copper is C18400 copper in the TF00 (precipitation hardened) temper. It has the second lowest ductility compared to the other variants of C18400 copper. The graph bars on the material properties cards below compare TF00 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

24 %

Poisson's Ratio

0.34

Rockwell B Hardness

67

Shear Modulus

44 GPa 6.3 x 106 psi

Shear Strength

250 MPa 36 x 103 psi

Tensile Strength: Ultimate (UTS)

390 MPa 57 x 103 psi

Tensile Strength: Yield (Proof)

330 MPa 47 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)

88 MJ/m3

Resilience: Unit (Modulus of Resilience)

460 kJ/m3

Stiffness to Weight: Axial

7.3 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

12 points

Strength to Weight: Bending

13 points

Thermal Diffusivity

94 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Copper (Cu)Cu 97.2 to 99.6
Chromium (Cr)Cr 0.4 to 1.2
Zinc (Zn)Zn 0 to 0.7
Iron (Fe)Fe 0 to 0.15
Silicon (Si)Si 0 to 0.1
Phosphorus (P)P 0 to 0.050
Lithium (Li)Li 0 to 0.050
Calcium (Ca)Ca 0 to 0.0050
Arsenic (As)As 0 to 0.0050
Residualsres. 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