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C93700 Bronze vs. C87700 Bronze

Both C93700 bronze and C87700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C93700 bronze and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 99
110
Elongation at Break, % 20
3.6
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 37
42
Tensile Strength: Ultimate (UTS), MPa 240
300
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 140
180
Melting Completion (Liquidus), °C 930
980
Melting Onset (Solidus), °C 760
900
Specific Heat Capacity, J/kg-K 350
400
Thermal Conductivity, W/m-K 47
120
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
45
Electrical Conductivity: Equal Weight (Specific), % IACS 10
48

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 3.5
2.7
Embodied Energy, MJ/kg 57
45
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 79
64
Stiffness to Weight: Axial, points 6.2
7.4
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 7.5
9.8
Strength to Weight: Bending, points 9.6
12
Thermal Diffusivity, mm2/s 15
34
Thermal Shock Resistance, points 9.4
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.5
0 to 0.1
Copper (Cu), % 78 to 82
87.5 to 90.5
Iron (Fe), % 0 to 0.15
0 to 0.5
Lead (Pb), % 8.0 to 11
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), % 9.0 to 11
0 to 2.0
Zinc (Zn), % 0 to 0.8
7.0 to 9.0
Residuals, % 0
0 to 0.8