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C83600 Ounce Metal vs. C95700 Bronze

Both C83600 ounce metal and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is C83600 ounce metal and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Elongation at Break, % 21
23
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
47
Tensile Strength: Ultimate (UTS), MPa 250
680
Tensile Strength: Yield (Proof), MPa 120
310

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 1010
990
Melting Onset (Solidus), °C 850
950
Specific Heat Capacity, J/kg-K 370
440
Thermal Conductivity, W/m-K 72
12
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 15
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 8.8
8.2
Embodied Carbon, kg CO2/kg material 3.1
3.3
Embodied Energy, MJ/kg 50
54
Embodied Water, L/kg 350
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43
130
Resilience: Unit (Modulus of Resilience), kJ/m3 70
390
Stiffness to Weight: Axial, points 6.7
8.5
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.9
23
Strength to Weight: Bending, points 10
21
Thermal Diffusivity, mm2/s 22
3.3
Thermal Shock Resistance, points 9.3
21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
7.0 to 8.5
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 84 to 86
71 to 78.5
Iron (Fe), % 0 to 0.3
2.0 to 4.0
Lead (Pb), % 4.0 to 6.0
0 to 0.030
Manganese (Mn), % 0
11 to 14
Nickel (Ni), % 0 to 1.0
1.5 to 3.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
0
Residuals, % 0
0 to 0.5