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C68700 Brass vs. C93500 Bronze

Both C68700 brass and C93500 bronze are copper alloys. They have 79% 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 C93500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 41
38
Tensile Strength: Ultimate (UTS), MPa 390
220
Tensile Strength: Yield (Proof), MPa 140
110

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 970
1000
Melting Onset (Solidus), °C 930
850
Specific Heat Capacity, J/kg-K 400
360
Thermal Conductivity, W/m-K 100
70
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
15
Electrical Conductivity: Equal Weight (Specific), % IACS 25
15

Otherwise Unclassified Properties

Base Metal Price, % relative 26
31
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
59
Stiffness to Weight: Axial, points 7.3
6.3
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 13
6.9
Strength to Weight: Bending, points 14
9.1
Thermal Diffusivity, mm2/s 30
22
Thermal Shock Resistance, points 13
8.5

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.3
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
83 to 86
Iron (Fe), % 0 to 0.060
0 to 0.2
Lead (Pb), % 0 to 0.070
8.0 to 10
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.3 to 6.0
Zinc (Zn), % 17.8 to 22.2
0 to 2.0
Residuals, % 0
0 to 1.0