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TD02 Tempered C72700 Copper-Nickel

TD02 C72700 copper-nickel is C72700 copper-nickel in the TD02 (solution heat treated and cold worked to half-hard) temper. It has the lowest ductility compared to the other variants of C72700 copper-nickel.

The graph bars on the material properties cards below compare TD02 C72700 copper-nickel to: wrought copper-nickels (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

4.0 %

Poisson's Ratio

0.34

Shear Modulus

44 GPa 6.4 x 106 psi

Shear Strength

370 MPa 53 x 103 psi

Tensile Strength: Ultimate (UTS)

630 MPa 92 x 103 psi

Tensile Strength: Yield (Proof)

580 MPa 84 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1100 °C 2010 °F

Melting Onset (Solidus)

930 °C 1700 °F

Specific Heat Capacity

380 J/kg-K 0.091 BTU/lb-°F

Thermal Conductivity

54 W/m-K 31 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

11 % IACS

Electrical Conductivity: Equal Weight (Specific)

11 % IACS

Otherwise Unclassified Properties

Base Metal Price

36 % relative

Density

8.8 g/cm3 550 lb/ft3

Embodied Carbon

4.0 kg CO2/kg material

Embodied Energy

62 MJ/kg 27 x 103 BTU/lb

Embodied Water

350 L/kg 42 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

20 to 380 MJ/m3

Resilience: Unit (Modulus of Resilience)

1420 kJ/m3

Stiffness to Weight: Axial

7.4 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

20 points

Strength to Weight: Bending

19 points

Thermal Diffusivity

16 mm2/s

Thermal Shock Resistance

22 points

Alloy Composition

Copper (Cu)Cu 82.1 to 86
Nickel (Ni)Ni 8.5 to 9.5
Tin (Sn)Sn 5.5 to 6.5
Iron (Fe)Fe 0 to 0.5
Zinc (Zn)Zn 0 to 0.5
Manganese (Mn)Mn 0.050 to 0.3
Magnesium (Mg)Mg 0 to 0.15
Niobium (Nb)Nb 0 to 0.1
Lead (Pb)Pb 0 to 0.020
Residualsres. 0 to 0.3

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015