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CC761S Brass vs. C83800 Bronze

Both CC761S brass and C83800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% 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 C83800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 8.7
20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
39
Tensile Strength: Ultimate (UTS), MPa 540
230
Tensile Strength: Yield (Proof), MPa 340
110

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 960
1000
Melting Onset (Solidus), °C 910
840
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 27
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
15
Electrical Conductivity: Equal Weight (Specific), % IACS 43
15

Otherwise Unclassified Properties

Base Metal Price, % relative 27
30
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
39
Resilience: Unit (Modulus of Resilience), kJ/m3 530
53
Stiffness to Weight: Axial, points 7.4
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 18
7.4
Strength to Weight: Bending, points 18
9.6
Thermal Diffusivity, mm2/s 8.0
22
Thermal Shock Resistance, points 19
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.25
Copper (Cu), % 78 to 83
82 to 83.8
Iron (Fe), % 0 to 0.6
0 to 0.3
Lead (Pb), % 0 to 0.8
5.0 to 7.0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 1.5
Silicon (Si), % 3.0 to 5.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.3
3.3 to 4.2
Zinc (Zn), % 8.9 to 19
5.0 to 8.0
Residuals, % 0
0 to 0.7