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CR014A Copper vs. C89320 Bronze

Both CR014A copper and C89320 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.

For each property being compared, the top bar is CR014A copper and the bottom bar is C89320 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
17
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 230
270
Tensile Strength: Yield (Proof), MPa 140
140

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1090
1050
Melting Onset (Solidus), °C 1040
930
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 380
56
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
15
Electrical Conductivity: Equal Weight (Specific), % IACS 99
15

Otherwise Unclassified Properties

Base Metal Price, % relative 32
37
Density, g/cm3 9.0
8.9
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 42
56
Embodied Water, L/kg 340
490

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
38
Resilience: Unit (Modulus of Resilience), kJ/m3 83
93
Stiffness to Weight: Axial, points 7.2
6.8
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.1
8.5
Strength to Weight: Bending, points 9.3
10
Thermal Diffusivity, mm2/s 110
17
Thermal Shock Resistance, points 8.1
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.35
Bismuth (Bi), % 0 to 0.00050
4.0 to 6.0
Copper (Cu), % 99.913 to 99.969
87 to 91
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.090
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0.0010 to 0.0070
0 to 0.3
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0.030 to 0.050
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
5.0 to 7.0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5