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C87700 Bronze vs. CC764S Brass

Both C87700 bronze and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C87700 bronze and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 3.6
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 300
680
Tensile Strength: Yield (Proof), MPa 120
290

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 980
850
Melting Onset (Solidus), °C 900
810
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 120
94
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
32
Electrical Conductivity: Equal Weight (Specific), % IACS 48
36

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 45
49
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6
80
Resilience: Unit (Modulus of Resilience), kJ/m3 64
390
Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 9.8
24
Strength to Weight: Bending, points 12
22
Thermal Diffusivity, mm2/s 34
30
Thermal Shock Resistance, points 11
22

Alloy Composition


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Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0 to 0.1
0 to 0.050
Copper (Cu), % 87.5 to 90.5
52 to 66
Iron (Fe), % 0 to 0.5
0.5 to 2.5
Lead (Pb), % 0 to 0.090
0 to 0.3
Manganese (Mn), % 0 to 0.8
0.3 to 4.0
Nickel (Ni), % 0 to 0.25
0 to 3.0
Phosphorus (P), % 0 to 0.15
0 to 0.030
Silicon (Si), % 2.5 to 3.5
0 to 0.1
Tin (Sn), % 0 to 2.0
0 to 0.3
Zinc (Zn), % 7.0 to 9.0
20.7 to 50.2
Residuals, % 0 to 0.8
0