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C86700 Bronze vs. CC767S Brass

Both C86700 bronze and CC767S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% 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 C86700 bronze and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
34
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
430
Tensile Strength: Yield (Proof), MPa 250
150

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 880
840
Melting Onset (Solidus), °C 860
790
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
32
Electrical Conductivity: Equal Weight (Specific), % IACS 19
36

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 49
47
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290
100
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 28
34
Thermal Shock Resistance, points 21
14

Alloy Composition


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Aluminum (Al), % 1.0 to 3.0
0.1 to 0.8
Copper (Cu), % 55 to 60
58 to 64
Iron (Fe), % 1.0 to 3.0
0 to 0.5
Lead (Pb), % 0.5 to 1.5
0 to 0.1
Manganese (Mn), % 1.0 to 3.5
0 to 0.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Silicon (Si), % 0
0 to 0.2
Tin (Sn), % 0 to 1.5
0 to 0.1
Zinc (Zn), % 30 to 38
32.8 to 41.9
Residuals, % 0 to 1.0
0