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CC482K Bronze vs. CC767S Brass

Both CC482K bronze and CC767S brass 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 CC482K bronze and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 99
86
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
34
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 300
430
Tensile Strength: Yield (Proof), MPa 160
150

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 980
840
Melting Onset (Solidus), °C 860
790
Specific Heat Capacity, J/kg-K 360
390
Thermal Conductivity, W/m-K 64
110
Thermal Expansion, µm/m-K 18
21

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 36
23
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 62
47
Embodied Water, L/kg 400
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
100
Stiffness to Weight: Axial, points 6.8
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.5
15
Strength to Weight: Bending, points 11
16
Thermal Diffusivity, mm2/s 20
34
Thermal Shock Resistance, points 11
14

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.1 to 0.8
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 83.5 to 87
58 to 64
Iron (Fe), % 0 to 0.2
0 to 0.5
Lead (Pb), % 0.7 to 2.5
0 to 0.1
Manganese (Mn), % 0 to 0.2
0 to 0.5
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.4
0
Silicon (Si), % 0 to 0.010
0 to 0.2
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 10.5 to 12.5
0 to 0.1
Zinc (Zn), % 0 to 2.0
32.8 to 41.9