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CC762S Brass vs. C90900 Bronze

Both CC762S brass and C90900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is CC762S brass and the bottom bar is C90900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
90
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 7.3
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 840
280
Tensile Strength: Yield (Proof), MPa 540
140

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 920
980
Melting Onset (Solidus), °C 870
820
Specific Heat Capacity, J/kg-K 420
360
Thermal Conductivity, W/m-K 51
65
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
11
Electrical Conductivity: Equal Weight (Specific), % IACS 32
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
36
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 3.1
3.9
Embodied Energy, MJ/kg 51
64
Embodied Water, L/kg 350
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
35
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
89
Stiffness to Weight: Axial, points 7.8
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 29
8.8
Strength to Weight: Bending, points 25
11
Thermal Diffusivity, mm2/s 15
21
Thermal Shock Resistance, points 27
10

Alloy Composition

Aluminum (Al), % 3.0 to 7.0
0 to 0.0050
Antimony (Sb), % 0 to 0.030
0 to 0.2
Copper (Cu), % 57 to 67
86 to 89
Iron (Fe), % 1.5 to 4.0
0 to 0.15
Lead (Pb), % 0 to 0.2
0 to 0.25
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.2
12 to 14
Zinc (Zn), % 13.4 to 36
0 to 0.25
Residuals, % 0
0 to 0.6