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CC765S Brass vs. C87300 Bronze

Both CC765S brass and C87300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% 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 CC765S 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, % 21
22
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
350
Tensile Strength: Yield (Proof), MPa 220
140

Thermal Properties

Latent Heat of Fusion, J/g 180
280
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 860
970
Melting Onset (Solidus), °C 820
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 91
28
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 34
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
29
Density, g/cm3 8.0
8.6
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 51
42
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
62
Resilience: Unit (Modulus of Resilience), kJ/m3 220
86
Stiffness to Weight: Axial, points 7.6
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
11
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 28
8.0
Thermal Shock Resistance, points 17
13

Alloy Composition


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Aluminum (Al), % 0.5 to 2.5
0
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
94 to 95.7
Iron (Fe), % 0.5 to 2.0
0 to 0.2
Lead (Pb), % 0 to 0.5
0 to 0.2
Manganese (Mn), % 0.3 to 3.0
0.8 to 1.5
Nickel (Ni), % 0 to 6.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
3.5 to 5.0
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19.8 to 47.7
0 to 0.25
Residuals, % 0
0 to 0.5