As-Cast C94700 Bronze
As-cast C94700 bronze is C94700 bronze in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare as-cast C94700 bronze to: cast 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
Brinell Hardness
85
Elastic (Young's, Tensile) Modulus
110 GPa 17 x 106 psi
Elongation at Break
32 %
Poisson's Ratio
0.34
Shear Modulus
43 GPa 6.2 x 106 psi
Tensile Strength: Ultimate (UTS)
350 MPa 50 x 103 psi
Tensile Strength: Yield (Proof)
160 MPa 23 x 103 psi
Thermal Properties
Latent Heat of Fusion
200 J/g
Maximum Temperature: Mechanical
190 °C 380 °F
Melting Completion (Liquidus)
1030 °C 1880 °F
Melting Onset (Solidus)
900 °C 1660 °F
Specific Heat Capacity
380 J/kg-K 0.090 BTU/lb-°F
Thermal Conductivity
54 W/m-K 31 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
12 % IACS
Electrical Conductivity: Equal Weight (Specific)
12 % IACS
Otherwise Unclassified Properties
Base Metal Price
34 % relative
Density
8.8 g/cm3 550 lb/ft3
Embodied Carbon
3.5 kg CO2/kg material
Embodied Energy
56 MJ/kg 24 x 103 BTU/lb
Embodied Water
350 L/kg 41 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
89 MJ/m3
Resilience: Unit (Modulus of Resilience)
110 kJ/m3
Stiffness to Weight: Axial
7.3 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
11 points
Strength to Weight: Bending
13 points
Thermal Diffusivity
16 mm2/s
Thermal Shock Resistance
12 points
Alloy Composition
| Cu | 85 to 90 | |
| Ni | 4.5 to 6.0 | |
| Sn | 4.5 to 6.0 | |
| Zn | 1.0 to 2.5 | |
| Fe | 0 to 0.25 | |
| Mn | 0 to 0.2 | |
| Sb | 0 to 0.15 | |
| Pb | 0 to 0.1 | |
| P | 0 to 0.050 | |
| S | 0 to 0.050 | |
| Si | 0 to 0.0050 | |
| Al | 0 to 0.0050 | |
| res. | 0 to 1.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B505: Standard Specification for Copper Alloy Continuous Castings
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001