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CC766S Brass vs. CC482K Bronze

Both CC766S brass and CC482K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is CC766S brass and the bottom bar is CC482K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
99
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
5.6
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 500
300
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 840
980
Melting Onset (Solidus), °C 800
860
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 89
64
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
10
Electrical Conductivity: Equal Weight (Specific), % IACS 36
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
36
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 48
62
Embodied Water, L/kg 330
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
14
Resilience: Unit (Modulus of Resilience), kJ/m3 180
120
Stiffness to Weight: Axial, points 7.3
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 17
9.5
Strength to Weight: Bending, points 18
11
Thermal Diffusivity, mm2/s 28
20
Thermal Shock Resistance, points 17
11

Alloy Composition

Aluminum (Al), % 0.3 to 1.8
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.2
Copper (Cu), % 58 to 64
83.5 to 87
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0 to 0.5
0.7 to 2.5
Manganese (Mn), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 2.0
0 to 2.0
Phosphorus (P), % 0
0 to 0.4
Silicon (Si), % 0 to 0.6
0 to 0.010
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.5
10.5 to 12.5
Zinc (Zn), % 29.5 to 41.7
0 to 2.0