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CR003A Copper vs. C83800 Bronze

Both CR003A copper and C83800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is CR003A copper and the bottom bar is C83800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
20
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
39
Tensile Strength: Ultimate (UTS), MPa 230
230
Tensile Strength: Yield (Proof), MPa 140
110

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
1000
Melting Onset (Solidus), °C 1040
840
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 380
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
15
Electrical Conductivity: Equal Weight (Specific), % IACS 100
15

Otherwise Unclassified Properties

Base Metal Price, % relative 31
30
Density, g/cm3 9.0
8.8
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
39
Resilience: Unit (Modulus of Resilience), kJ/m3 83
53
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.1
7.4
Strength to Weight: Bending, points 9.3
9.6
Thermal Diffusivity, mm2/s 110
22
Thermal Shock Resistance, points 8.1
8.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0 to 0.00040
0 to 0.25
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Copper (Cu), % 99.954 to 100
82 to 83.8
Iron (Fe), % 0 to 0.0010
0 to 0.3
Lead (Pb), % 0 to 0.00050
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
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 0.080
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0
3.3 to 4.2
Zinc (Zn), % 0
5.0 to 8.0
Residuals, % 0
0 to 0.7