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C68700 Brass vs. C94700 Bronze

Both C68700 brass and C94700 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 C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 390
350 to 590
Tensile Strength: Yield (Proof), MPa 140
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 970
1030
Melting Onset (Solidus), °C 930
900
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 100
54
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
12
Electrical Conductivity: Equal Weight (Specific), % IACS 25
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
34
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 46
56
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
110 to 700
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13
11 to 19
Strength to Weight: Bending, points 14
13 to 18
Thermal Diffusivity, mm2/s 30
16
Thermal Shock Resistance, points 13
12 to 21

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
85 to 90
Iron (Fe), % 0 to 0.060
0 to 0.25
Lead (Pb), % 0 to 0.070
0 to 0.1
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 17.8 to 22.2
1.0 to 2.5
Residuals, % 0
0 to 1.3