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CC481K Bronze vs. CC140C Copper

Both CC481K bronze and CC140C copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is CC481K bronze and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
110
Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 4.5
11
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 350
340
Tensile Strength: Yield (Proof), MPa 180
230

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1000
1100
Melting Onset (Solidus), °C 880
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 64
310
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
77
Electrical Conductivity: Equal Weight (Specific), % IACS 10
78

Otherwise Unclassified Properties

Base Metal Price, % relative 35
31
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 3.7
2.6
Embodied Energy, MJ/kg 60
41
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
34
Resilience: Unit (Modulus of Resilience), kJ/m3 150
220
Stiffness to Weight: Axial, points 6.9
7.3
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11
10
Strength to Weight: Bending, points 13
12
Thermal Diffusivity, mm2/s 20
89
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.050
0
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 87 to 89.5
98.8 to 99.6
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.1
0
Phosphorus (P), % 0 to 1.0
0
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10 to 11.5
0
Zinc (Zn), % 0 to 0.5
0