UNS C61500 Aluminum Bronze
C61500 bronze is a bronze formulated for primary forming into wrought products.
The properties of C61500 bronze include six common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C61500 bronze to: wrought bronzes (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 16 x 106 psi
Elongation at Break
3.0 to 55 %
Poisson's Ratio
0.34
Rockwell Superficial 30T Hardness
42 to 85
Shear Modulus
42 GPa 6.1 x 106 psi
Shear Strength
350 to 550 MPa 51 to 80 x 103 psi
Tensile Strength: Ultimate (UTS)
480 to 970 MPa 70 to 140 x 103 psi
Tensile Strength: Yield (Proof)
150 to 720 MPa 22 to 110 x 103 psi
Thermal Properties
Latent Heat of Fusion
220 J/g
Maximum Temperature: Mechanical
220 °C 420 °F
Melting Completion (Liquidus)
1040 °C 1900 °F
Melting Onset (Solidus)
1030 °C 1890 °F
Specific Heat Capacity
430 J/kg-K 0.1 BTU/lb-°F
Thermal Conductivity
58 W/m-K 34 BTU/h-ft-°F
Thermal Expansion
18 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
13 % IACS
Electrical Conductivity: Equal Weight (Specific)
13 % IACS
Otherwise Unclassified Properties
Base Metal Price
29 % relative
Density
8.4 g/cm3 530 lb/ft3
Embodied Carbon
3.2 kg CO2/kg material
Embodied Energy
52 MJ/kg 22 x 103 BTU/lb
Embodied Water
380 L/kg 45 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
27 to 200 MJ/m3
Resilience: Unit (Modulus of Resilience)
100 to 2310 kJ/m3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
16 to 32 points
Strength to Weight: Bending
16 to 26 points
Thermal Diffusivity
16 mm2/s
Thermal Shock Resistance
17 to 34 points
Alloy Composition
Among wrought copper alloys, the composition of C61500 bronze is notable for including aluminum (Al) and nickel (Ni). Aluminum is used to add strength and oxidation resistance. Nickel is used to improve strength (particularly at elevated temperatures) and corrosion resistance.
| Cu | 89 to 90.5 | |
| Al | 7.7 to 8.3 | |
| Ni | 1.8 to 2.2 | |
| Pb | 0 to 0.015 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015