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C69710 Brass vs. C95700 Bronze

Both C69710 brass and C95700 bronze are copper alloys. They have 75% 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 C69710 brass and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Elongation at Break, % 25
23
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
47
Tensile Strength: Ultimate (UTS), MPa 470
680
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 240
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 930
990
Melting Onset (Solidus), °C 880
950
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
26
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 44
54
Embodied Water, L/kg 310
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
390
Stiffness to Weight: Axial, points 7.3
8.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
23
Strength to Weight: Bending, points 16
21
Thermal Diffusivity, mm2/s 12
3.3
Thermal Shock Resistance, points 16
21

Alloy Composition


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Aluminum (Al), % 0
7.0 to 8.5
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
71 to 78.5
Iron (Fe), % 0 to 0.2
2.0 to 4.0
Lead (Pb), % 0.5 to 1.5
0 to 0.030
Manganese (Mn), % 0 to 0.4
11 to 14
Nickel (Ni), % 0
1.5 to 3.0
Silicon (Si), % 2.5 to 3.5
0 to 0.1
Zinc (Zn), % 13.8 to 22
0
Residuals, % 0 to 0.5
0 to 0.5