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CC499K Bronze vs. CC491K Bronze

Both CC499K bronze and CC491K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is CC499K bronze and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
73
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
13
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 260
260
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1000
980
Melting Onset (Solidus), °C 920
900
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 73
71
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
15
Electrical Conductivity: Equal Weight (Specific), % IACS 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 32
31
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 51
51
Embodied Water, L/kg 350
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
27
Resilience: Unit (Modulus of Resilience), kJ/m3 65
67
Stiffness to Weight: Axial, points 6.9
6.7
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
8.1
Strength to Weight: Bending, points 10
10
Thermal Diffusivity, mm2/s 22
22
Thermal Shock Resistance, points 9.2
9.3

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.25
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.020
0
Cadmium (Cd), % 0 to 0.020
0
Chromium (Cr), % 0 to 0.020
0
Copper (Cu), % 84 to 88
81 to 87
Iron (Fe), % 0 to 0.3
0 to 0.3
Lead (Pb), % 0 to 3.0
4.0 to 6.0
Nickel (Ni), % 0 to 0.6
0 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.1
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.040
0 to 0.1
Tin (Sn), % 4.0 to 6.0
4.0 to 6.0
Zinc (Zn), % 4.0 to 6.0
4.0 to 6.0