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CC499K Bronze vs. CC493K Bronze

Both CC499K bronze and CC493K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is CC499K bronze and the bottom bar is CC493K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
74
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
14
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 260
270
Tensile Strength: Yield (Proof), MPa 120
140

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1000
960
Melting Onset (Solidus), °C 920
880
Specific Heat Capacity, J/kg-K 370
360
Thermal Conductivity, W/m-K 73
61
Thermal Expansion, µm/m-K 18
19

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 32
32
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 3.1
3.3
Embodied Energy, MJ/kg 51
53
Embodied Water, L/kg 350
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
33
Resilience: Unit (Modulus of Resilience), kJ/m3 65
89
Stiffness to Weight: Axial, points 6.9
6.5
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
8.6
Strength to Weight: Bending, points 10
11
Thermal Diffusivity, mm2/s 22
19
Thermal Shock Resistance, points 9.2
10

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.1
0 to 0.3
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
79 to 86
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 0 to 3.0
5.0 to 8.0
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
5.2 to 8.0
Zinc (Zn), % 4.0 to 6.0
2.0 to 5.0