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Annealed to Half-Hard (O82) C19400 Copper

O82 C19400 copper is C19400 copper in the O82 (annealed to half-hard) temper. The graph bars on the material properties cards below compare O82 C19400 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

Poisson's Ratio

0.34

Shear Modulus

44 GPa 6.4 x 106 psi

Tensile Strength: Ultimate (UTS)

400 MPa 58 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 400 °F

Melting Completion (Liquidus)

1090 °C 1990 °F

Melting Onset (Solidus)

1080 °C 1980 °F

Specific Heat Capacity

390 J/kg-K 0.093 BTU/lb-°F

Thermal Conductivity

260 W/m-K 150 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

65 % IACS

Electrical Conductivity: Equal Weight (Specific)

66 % IACS

Otherwise Unclassified Properties

Base Metal Price

30 % relative

Density

8.9 g/cm3 560 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

40 MJ/kg 17 x 103 BTU/lb

Embodied Water

300 L/kg 36 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

5.5 to 220 MJ/m3

Resilience: Unit (Modulus of Resilience)

41 to 1140 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

14 points

Thermal Diffusivity

75 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Copper (Cu)Cu 96.8 to 97.8
Iron (Fe)Fe 2.1 to 2.6
Zinc (Zn)Zn 0.050 to 0.2
Phosphorus (P)P 0.015 to 0.15
Lead (Pb)Pb 0 to 0.030
Residualsres. 0 to 0.2

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

Followup Questions

Further Reading

ASTM B465: Standard Specification for Copper-Iron Alloy Plate, Sheet, Strip, and Rolled Bar

Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001