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CC761S Brass vs. C90200 Bronze

Both CC761S brass and C90200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is CC761S brass and the bottom bar is C90200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
70
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.7
30
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 540
260
Tensile Strength: Yield (Proof), MPa 340
110

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 960
1050
Melting Onset (Solidus), °C 910
880
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 27
62
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
13
Electrical Conductivity: Equal Weight (Specific), % IACS 43
13

Otherwise Unclassified Properties

Base Metal Price, % relative 27
34
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 45
53
Embodied Water, L/kg 300
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
63
Resilience: Unit (Modulus of Resilience), kJ/m3 530
55
Stiffness to Weight: Axial, points 7.4
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 18
8.3
Strength to Weight: Bending, points 18
10
Thermal Diffusivity, mm2/s 8.0
19
Thermal Shock Resistance, points 19
9.5

Alloy Composition


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Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.2
Copper (Cu), % 78 to 83
91 to 94
Iron (Fe), % 0 to 0.6
0 to 0.2
Lead (Pb), % 0 to 0.8
0 to 0.3
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 3.0 to 5.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.3
6.0 to 8.0
Zinc (Zn), % 8.9 to 19
0 to 0.5
Residuals, % 0
0 to 0.6