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
| Cu | 99.75 to 99.853 | |
| Mg | 0.080 to 0.13 | |
| Ag | 0.027 to 0.1 | |
| P | 0.040 to 0.080 | |
| res. | 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