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Light Annealed (O50) C15500 Copper

O50 C15500 copper is C15500 copper in the O50 (light annealed) temper. It has the lowest strength and highest ductility compared to the other variants of C15500 copper. The graph bars on the material properties cards below compare O50 C15500 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

37 %

Fatigue Strength

100 MPa 15 x 103 psi

Poisson's Ratio

0.34

Rockwell F Hardness

70

Shear Modulus

43 GPa 6.3 x 106 psi

Shear Strength

190 MPa 27 x 103 psi

Tensile Strength: Ultimate (UTS)

280 MPa 40 x 103 psi

Tensile Strength: Yield (Proof)

130 MPa 19 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1080 °C 1980 °F

Melting Onset (Solidus)

1080 °C 1970 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

350 W/m-K 200 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

90 % IACS

Electrical Conductivity: Equal Weight (Specific)

91 % IACS

Otherwise Unclassified Properties

Base Metal Price

33 % relative

Density

8.9 g/cm3 560 lb/ft3

Embodied Carbon

2.7 kg CO2/kg material

Embodied Energy

42 MJ/kg 18 x 103 BTU/lb

Embodied Water

360 L/kg 43 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

84 MJ/m3

Resilience: Unit (Modulus of Resilience)

72 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

8.6 points

Strength to Weight: Bending

11 points

Thermal Diffusivity

100 mm2/s

Thermal Shock Resistance

9.8 points

Alloy Composition

Copper (Cu)Cu 99.75 to 99.853
Magnesium (Mg)Mg 0.080 to 0.13
Silver (Ag)Ag 0.027 to 0.1
Phosphorus (P)P 0.040 to 0.080
Residualsres. 0 to 0.2

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