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CC480K Bronze vs. CC762S Brass

Both CC480K bronze and CC762S brass 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 CC480K bronze and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 88
210
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
7.3
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 300
840
Tensile Strength: Yield (Proof), MPa 180
540

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1010
920
Melting Onset (Solidus), °C 900
870
Specific Heat Capacity, J/kg-K 370
420
Thermal Conductivity, W/m-K 63
51
Thermal Expansion, µm/m-K 18
20

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 35
24
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 59
51
Embodied Water, L/kg 390
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
54
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1290
Stiffness to Weight: Axial, points 6.9
7.8
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.6
29
Strength to Weight: Bending, points 11
25
Thermal Diffusivity, mm2/s 20
15
Thermal Shock Resistance, points 11
27

Alloy Composition

Aluminum (Al), % 0 to 0.010
3.0 to 7.0
Antimony (Sb), % 0 to 0.2
0 to 0.030
Copper (Cu), % 86 to 90
57 to 67
Iron (Fe), % 0 to 0.2
1.5 to 4.0
Lead (Pb), % 0 to 1.0
0 to 0.2
Manganese (Mn), % 0 to 0.1
2.5 to 5.0
Nickel (Ni), % 0 to 2.0
0 to 3.0
Phosphorus (P), % 0 to 0.2
0 to 0.030
Silicon (Si), % 0 to 0.020
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0 to 0.2
Zinc (Zn), % 0 to 0.5
13.4 to 36