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CC499K Bronze vs. C90700 Bronze

Both CC499K bronze and C90700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is CC499K bronze and the bottom bar is C90700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
90
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
12
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 260
330
Tensile Strength: Yield (Proof), MPa 120
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 920
830
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 73
71
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
10
Electrical Conductivity: Equal Weight (Specific), % IACS 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 32
35
Density, g/cm3 8.8
8.7
Embodied Carbon, kg CO2/kg material 3.1
3.7
Embodied Energy, MJ/kg 51
60
Embodied Water, L/kg 350
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
34
Resilience: Unit (Modulus of Resilience), kJ/m3 65
150
Stiffness to Weight: Axial, points 6.9
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
10
Strength to Weight: Bending, points 10
12
Thermal Diffusivity, mm2/s 22
22
Thermal Shock Resistance, points 9.2
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.2
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
88 to 90
Iron (Fe), % 0 to 0.3
0 to 0.15
Lead (Pb), % 0 to 3.0
0 to 0.5
Nickel (Ni), % 0 to 0.6
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 1.5
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.050
Tin (Sn), % 4.0 to 6.0
10 to 12
Zinc (Zn), % 4.0 to 6.0
0 to 0.5
Residuals, % 0
0 to 0.6