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CC483K Bronze vs. CC761S Brass

Both CC483K bronze and CC761S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is CC483K bronze and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 97
150
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 6.4
8.7
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 310
540
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 990
960
Melting Onset (Solidus), °C 870
910
Specific Heat Capacity, J/kg-K 370
410
Thermal Conductivity, W/m-K 68
27
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
40
Electrical Conductivity: Equal Weight (Specific), % IACS 10
43

Otherwise Unclassified Properties

Base Metal Price, % relative 36
27
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 62
45
Embodied Water, L/kg 400
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
41
Resilience: Unit (Modulus of Resilience), kJ/m3 130
530
Stiffness to Weight: Axial, points 6.9
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.9
18
Strength to Weight: Bending, points 12
18
Thermal Diffusivity, mm2/s 21
8.0
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.1
Antimony (Sb), % 0 to 0.15
0 to 0.050
Copper (Cu), % 85 to 89
78 to 83
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0 to 0.7
0 to 0.8
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.6
0 to 0.030
Silicon (Si), % 0 to 0.010
3.0 to 5.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10.5 to 13
0 to 0.3
Zinc (Zn), % 0 to 0.5
8.9 to 19