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C68700 Brass vs. C86400 Bronze

Both C68700 brass and C86400 bronze are copper alloys. They have 80% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is C86400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 390
470
Tensile Strength: Yield (Proof), MPa 140
150

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 970
880
Melting Onset (Solidus), °C 930
860
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 100
88
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
19
Electrical Conductivity: Equal Weight (Specific), % IACS 25
22

Otherwise Unclassified Properties

Base Metal Price, % relative 26
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
110
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
16
Strength to Weight: Bending, points 14
17
Thermal Diffusivity, mm2/s 30
29
Thermal Shock Resistance, points 13
16

Alloy Composition


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Aluminum (Al), % 1.8 to 2.5
0.5 to 1.5
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
56 to 62
Iron (Fe), % 0 to 0.060
0.4 to 2.0
Lead (Pb), % 0 to 0.070
0.5 to 1.5
Manganese (Mn), % 0
0.1 to 1.0
Nickel (Ni), % 0
0 to 1.0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 17.8 to 22.2
34 to 42
Residuals, % 0 to 0.5
0 to 1.0