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CC497K Bronze vs. CC499K Bronze

Both CC497K bronze and CC499K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is CC497K bronze and the bottom bar is CC499K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
73
Elastic (Young's, Tensile) Modulus, GPa 93
110
Elongation at Break, % 6.7
13
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 34
41
Tensile Strength: Ultimate (UTS), MPa 190
260
Tensile Strength: Yield (Proof), MPa 91
120

Thermal Properties

Latent Heat of Fusion, J/g 160
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 870
1000
Melting Onset (Solidus), °C 800
920
Specific Heat Capacity, J/kg-K 330
370
Thermal Conductivity, W/m-K 53
73
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 29
32
Density, g/cm3 9.3
8.8
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 48
51
Embodied Water, L/kg 370
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
27
Resilience: Unit (Modulus of Resilience), kJ/m3 45
65
Stiffness to Weight: Axial, points 5.5
6.9
Stiffness to Weight: Bending, points 16
18
Strength to Weight: Axial, points 5.6
8.1
Strength to Weight: Bending, points 7.8
10
Thermal Diffusivity, mm2/s 17
22
Thermal Shock Resistance, points 7.2
9.2

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.75
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.020
Cadmium (Cd), % 0
0 to 0.020
Chromium (Cr), % 0
0 to 0.020
Copper (Cu), % 67.5 to 77.5
84 to 88
Iron (Fe), % 0 to 0.25
0 to 0.3
Lead (Pb), % 18 to 23
0 to 3.0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0.5 to 2.5
0 to 0.6
Phosphorus (P), % 0 to 0.1
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.1
0 to 0.040
Tin (Sn), % 4.0 to 6.0
4.0 to 6.0
Zinc (Zn), % 0 to 2.0
4.0 to 6.0