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Hot Extruded and Temper Annealed (O32) C63000 Bronze

O32 C63000 bronze is C63000 bronze in the O32 (hot extruded and temper annealed) condition. It has the highest strength compared to the other variants of C63000 bronze. The graph bars on the material properties cards below compare O32 C63000 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

120 GPa 17 x 106 psi

Elongation at Break

11 %

Poisson's Ratio

0.34

Shear Modulus

44 GPa 6.3 x 106 psi

Shear Strength

470 MPa 68 x 103 psi

Tensile Strength: Ultimate (UTS)

790 MPa 110 x 103 psi

Tensile Strength: Yield (Proof)

390 MPa 56 x 103 psi

Thermal Properties

Latent Heat of Fusion

230 J/g

Maximum Temperature: Mechanical

230 °C 450 °F

Melting Completion (Liquidus)

1050 °C 1930 °F

Melting Onset (Solidus)

1040 °C 1900 °F

Specific Heat Capacity

440 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

39 W/m-K 23 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

7.6 % IACS

Otherwise Unclassified Properties

Base Metal Price

29 % relative

Density

8.2 g/cm3 510 lb/ft3

Embodied Carbon

3.5 kg CO2/kg material

Embodied Energy

57 MJ/kg 24 x 103 BTU/lb

Embodied Water

390 L/kg 46 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

74 MJ/m3

Resilience: Unit (Modulus of Resilience)

640 kJ/m3

Stiffness to Weight: Axial

7.9 points

Stiffness to Weight: Bending

20 points

Strength to Weight: Axial

26 points

Strength to Weight: Bending

23 points

Thermal Diffusivity

11 mm2/s

Thermal Shock Resistance

27 points

Alloy Composition

Copper (Cu)Cu 76.8 to 85
Aluminum (Al)Al 9.0 to 11
Nickel (Ni)Ni 4.0 to 5.5
Iron (Fe)Fe 2.0 to 4.0
Manganese (Mn)Mn 0 to 1.5
Zinc (Zn)Zn 0 to 0.3
Silicon (Si)Si 0 to 0.25
Tin (Sn)Sn 0 to 0.2
Residualsres. 0 to 0.5

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

Followup Questions

Further Reading

ASTM B150: Standard Specification for Aluminum Bronze Rod, Bar, and Shapes

ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

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