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CC484K Bronze vs. CC481K Bronze

Both CC484K bronze and CC481K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is CC484K bronze and the bottom bar is CC481K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
90
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
4.5
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 330
350
Tensile Strength: Yield (Proof), MPa 200
180

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1000
1000
Melting Onset (Solidus), °C 870
880
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 70
64
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.1
10
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 37
35
Density, g/cm3 8.7
8.7
Embodied Carbon, kg CO2/kg material 3.9
3.7
Embodied Energy, MJ/kg 64
60
Embodied Water, L/kg 400
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32
13
Resilience: Unit (Modulus of Resilience), kJ/m3 180
150
Stiffness to Weight: Axial, points 6.9
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 10
11
Strength to Weight: Bending, points 12
13
Thermal Diffusivity, mm2/s 22
20
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.050
Copper (Cu), % 84.5 to 87.5
87 to 89.5
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0 to 0.3
0 to 0.25
Manganese (Mn), % 0 to 0.2
0 to 0.050
Nickel (Ni), % 1.5 to 2.5
0 to 0.1
Phosphorus (P), % 0.050 to 0.4
0 to 1.0
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 11 to 13
10 to 11.5
Zinc (Zn), % 0 to 0.4
0 to 0.5