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C93500 Bronze vs. C87700 Bronze

Both C93500 bronze and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is C93500 bronze and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15
3.6
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 38
42
Tensile Strength: Ultimate (UTS), MPa 220
300
Tensile Strength: Yield (Proof), MPa 110
120

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 1000
980
Melting Onset (Solidus), °C 850
900
Specific Heat Capacity, J/kg-K 360
400
Thermal Conductivity, W/m-K 70
120
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
45
Electrical Conductivity: Equal Weight (Specific), % IACS 15
48

Otherwise Unclassified Properties

Base Metal Price, % relative 31
29
Density, g/cm3 9.0
8.5
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 350
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 59
64
Stiffness to Weight: Axial, points 6.3
7.4
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.9
9.8
Strength to Weight: Bending, points 9.1
12
Thermal Diffusivity, mm2/s 22
34
Thermal Shock Resistance, points 8.5
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.3
0 to 0.1
Copper (Cu), % 83 to 86
87.5 to 90.5
Iron (Fe), % 0 to 0.2
0 to 0.5
Lead (Pb), % 8.0 to 10
0 to 0.090
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0 to 1.0
0 to 0.25
Phosphorus (P), % 0 to 1.5
0 to 0.15
Silicon (Si), % 0 to 0.0050
2.5 to 3.5
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.3 to 6.0
0 to 2.0
Zinc (Zn), % 0 to 2.0
7.0 to 9.0
Residuals, % 0
0 to 0.8