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CR022A Copper vs. C90700 Bronze

Both CR022A copper and C90700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 89% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is CR022A copper and the bottom bar is C90700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
12
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 230
330
Tensile Strength: Yield (Proof), MPa 140
180

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
1000
Melting Onset (Solidus), °C 1040
830
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 380
71
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
10
Electrical Conductivity: Equal Weight (Specific), % IACS 100
10

Otherwise Unclassified Properties

Base Metal Price, % relative 31
35
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 2.6
3.7
Embodied Energy, MJ/kg 41
60
Embodied Water, L/kg 310
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
34
Resilience: Unit (Modulus of Resilience), kJ/m3 83
150
Stiffness to Weight: Axial, points 7.2
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.1
10
Strength to Weight: Bending, points 9.3
12
Thermal Diffusivity, mm2/s 110
22
Thermal Shock Resistance, points 8.1
12

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0 to 0.00040
0 to 0.2
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Cadmium (Cd), % 0 to 0.00010
0
Copper (Cu), % 99.99 to 99.999
88 to 90
Iron (Fe), % 0 to 0.0010
0 to 0.15
Lead (Pb), % 0 to 0.00050
0 to 0.5
Manganese (Mn), % 0 to 0.00050
0
Nickel (Ni), % 0 to 0.0010
0 to 0.5
Phosphorus (P), % 0.0010 to 0.0060
0 to 1.5
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0 to 0.050
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0 to 0.00020
10 to 12
Zinc (Zn), % 0 to 0.00010
0 to 0.5
Residuals, % 0
0 to 0.6