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Annealed (OS050) C16500 Copper

OS050 C16500 copper is C16500 copper in the OS050 (annealed to 0.050mm grain size) temper. It has the lowest strength and highest ductility compared to the other variants of C16500 copper. The graph bars on the material properties cards below compare OS050 C16500 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

110 GPa 17 x 106 psi

Elongation at Break

53 %

Fatigue Strength

140 MPa 20 x 103 psi

Poisson's Ratio

0.34

Rockwell F Hardness

62

Shear Modulus

43 GPa 6.2 x 106 psi

Shear Strength

200 MPa 29 x 103 psi

Tensile Strength: Ultimate (UTS)

280 MPa 40 x 103 psi

Tensile Strength: Yield (Proof)

97 MPa 14 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

340 °C 650 °F

Melting Completion (Liquidus)

1070 °C 1960 °F

Melting Onset (Solidus)

1010 °C 1850 °F

Specific Heat Capacity

380 J/kg-K 0.091 BTU/lb-°F

Thermal Conductivity

250 W/m-K 150 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

60 % IACS

Electrical Conductivity: Equal Weight (Specific)

61 % 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

42 MJ/kg 18 x 103 BTU/lb

Embodied Water

320 L/kg 38 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m3

Resilience: Unit (Modulus of Resilience)

41 kJ/m3

Stiffness to Weight: Axial

7.1 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

8.6 points

Strength to Weight: Bending

11 points

Thermal Diffusivity

74 mm2/s

Thermal Shock Resistance

9.8 points

Alloy Composition

Copper (Cu) 97.8 to 98.9
Cadmium (Cd) 0.6 to 1.0
Tin (Sn) 0.5 to 0.7
Iron (Fe) 0 to 0.020
Residuals 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