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CC761S Brass vs. C87300 Bronze

Both CC761S brass and C87300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% 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 CC761S 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, % 8.7
22
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 540
350
Tensile Strength: Yield (Proof), MPa 340
140

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 960
970
Melting Onset (Solidus), °C 910
820
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 27
28
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 43
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 27
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 300
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
62
Resilience: Unit (Modulus of Resilience), kJ/m3 530
86
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18
11
Strength to Weight: Bending, points 18
13
Thermal Diffusivity, mm2/s 8.0
8.0
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 78 to 83
94 to 95.7
Iron (Fe), % 0 to 0.6
0 to 0.2
Lead (Pb), % 0 to 0.8
0 to 0.2
Manganese (Mn), % 0 to 0.2
0.8 to 1.5
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 3.0 to 5.0
3.5 to 5.0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 8.9 to 19
0 to 0.25
Residuals, % 0
0 to 0.5