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C69710 Brass vs. C87300 Bronze

Both C69710 brass and C87300 bronze are copper alloys. They have 81% 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 C87300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 25
22
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 470
350
Tensile Strength: Yield (Proof), MPa 230
140

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 930
970
Melting Onset (Solidus), °C 880
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 40
28
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 26
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
42
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
62
Resilience: Unit (Modulus of Resilience), kJ/m3 250
86
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
11
Strength to Weight: Bending, points 16
13
Thermal Diffusivity, mm2/s 12
8.0
Thermal Shock Resistance, points 16
13

Alloy Composition


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Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
94 to 95.7
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 0.5 to 1.5
0 to 0.2
Manganese (Mn), % 0 to 0.4
0.8 to 1.5
Silicon (Si), % 2.5 to 3.5
3.5 to 5.0
Zinc (Zn), % 13.8 to 22
0 to 0.25
Residuals, % 0 to 0.5
0 to 0.5