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CC491K Bronze vs. CC483K Bronze

Both CC491K bronze and CC483K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is CC491K bronze and the bottom bar is CC483K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
97
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
6.4
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 260
310
Tensile Strength: Yield (Proof), MPa 120
170

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 980
990
Melting Onset (Solidus), °C 900
870
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 71
68
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
10
Electrical Conductivity: Equal Weight (Specific), % IACS 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 31
36
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 3.1
3.8
Embodied Energy, MJ/kg 51
62
Embodied Water, L/kg 350
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
17
Resilience: Unit (Modulus of Resilience), kJ/m3 67
130
Stiffness to Weight: Axial, points 6.7
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
9.9
Strength to Weight: Bending, points 10
12
Thermal Diffusivity, mm2/s 22
21
Thermal Shock Resistance, points 9.3
11

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.25
0 to 0.15
Copper (Cu), % 81 to 87
85 to 89
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 4.0 to 6.0
0 to 0.7
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 2.0
0 to 2.0
Phosphorus (P), % 0 to 0.1
0 to 0.6
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.1
0 to 0.050
Tin (Sn), % 4.0 to 6.0
10.5 to 13
Zinc (Zn), % 4.0 to 6.0
0 to 0.5