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C68700 Brass vs. C95200 Bronze

Both C68700 brass and C95200 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 (3, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is C95200 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
42
Tensile Strength: Ultimate (UTS), MPa 390
520
Tensile Strength: Yield (Proof), MPa 140
190

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 970
1050
Melting Onset (Solidus), °C 930
1040
Specific Heat Capacity, J/kg-K 400
430
Thermal Conductivity, W/m-K 100
50
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
11
Electrical Conductivity: Equal Weight (Specific), % IACS 25
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
28
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
50
Embodied Water, L/kg 340
380

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
170
Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
17
Strength to Weight: Bending, points 14
17
Thermal Diffusivity, mm2/s 30
14
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
8.5 to 9.5
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
86 to 89
Iron (Fe), % 0 to 0.060
2.5 to 4.0
Lead (Pb), % 0 to 0.070
0
Zinc (Zn), % 17.8 to 22.2
0
Residuals, % 0
0 to 1.0