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Soft Annealed (O60) C61400 Bronze

O60 C61400 bronze is C61400 bronze in the O60 (soft annealed) temper. The graph bars on the material properties cards below compare O60 C61400 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 17 x 106 psi

Elongation at Break

39 %

Poisson's Ratio

0.34

Shear Modulus

43 GPa 6.2 x 106 psi

Shear Strength

370 MPa 53 x 103 psi

Tensile Strength: Ultimate (UTS)

540 MPa 78 x 103 psi

Tensile Strength: Yield (Proof)

220 MPa 32 x 103 psi

Thermal Properties

Latent Heat of Fusion

220 J/g

Maximum Temperature: Mechanical

220 °C 420 °F

Melting Completion (Liquidus)

1050 °C 1910 °F

Melting Onset (Solidus)

1040 °C 1910 °F

Specific Heat Capacity

420 J/kg-K 0.1 BTU/lb-°F

Thermal Conductivity

67 W/m-K 39 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

14 % IACS

Electrical Conductivity: Equal Weight (Specific)

15 % IACS

Otherwise Unclassified Properties

Base Metal Price

28 % relative

Density

8.5 g/cm3 530 lb/ft3

Embodied Carbon

3.0 kg CO2/kg material

Embodied Energy

48 MJ/kg 21 x 103 BTU/lb

Embodied Water

360 L/kg 44 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

170 MJ/m3

Resilience: Unit (Modulus of Resilience)

210 kJ/m3

Stiffness to Weight: Axial

7.5 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

18 points

Strength to Weight: Bending

17 points

Thermal Diffusivity

19 mm2/s

Thermal Shock Resistance

18 points

Alloy Composition

Copper (Cu)Cu 86 to 92.5
Aluminum (Al)Al 6.0 to 8.0
Iron (Fe)Fe 1.5 to 3.5
Manganese (Mn)Mn 0 to 1.0
Zinc (Zn)Zn 0 to 1.0
Phosphorus (P)P 0 to 0.015
Lead (Pb)Pb 0 to 0.010
Residualsres. 0 to 0.5

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

ASTM B169: Standard Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001