Soft Annealed (O60) C19500 Copper
O60 C19500 copper is C19500 copper in the O60 (soft annealed) temper. It has the lowest strength and highest ductility compared to the other variants of C19500 copper. The graph bars on the material properties cards below compare O60 C19500 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
38 %
Poisson's Ratio
0.34
Shear Modulus
44 GPa 6.3 x 106 psi
Shear Strength
260 MPa 37 x 103 psi
Tensile Strength: Ultimate (UTS)
380 MPa 55 x 103 psi
Tensile Strength: Yield (Proof)
120 MPa 17 x 103 psi
Thermal Properties
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C 390 °F
Melting Completion (Liquidus)
1090 °C 2000 °F
Melting Onset (Solidus)
1090 °C 1990 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
200 W/m-K 120 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
56 % IACS
Electrical Conductivity: Equal Weight (Specific)
57 % IACS
Otherwise Unclassified Properties
Base Metal Price
31 % 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
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m3
Resilience: Unit (Modulus of Resilience)
59 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
13 points
Thermal Diffusivity
58 mm2/s
Thermal Shock Resistance
13 points
Alloy Composition
| Cu | 94.9 to 98.6 | |
| Fe | 1.0 to 2.0 | |
| Co | 0.3 to 1.3 | |
| Sn | 0.1 to 1.0 | |
| P | 0.010 to 0.35 | |
| Zn | 0 to 0.2 | |
| Al | 0 to 0.020 | |
| Pb | 0 to 0.020 | |
| res. | 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