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CR004A Copper vs. C93500 Bronze

Both CR004A copper and C93500 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is CR004A copper and the bottom bar is C93500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
15
Poisson's Ratio 0.34
0.35
Shear Modulus, GPa 43
38
Tensile Strength: Ultimate (UTS), MPa 220
220
Tensile Strength: Yield (Proof), MPa 130
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
850
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 380
70
Thermal Expansion, µm/m-K 17
18

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
31
Density, g/cm3 9.0
9.0
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 41
49
Embodied Water, L/kg 320
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
28
Resilience: Unit (Modulus of Resilience), kJ/m3 76
59
Stiffness to Weight: Axial, points 7.2
6.3
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 6.8
6.9
Strength to Weight: Bending, points 9.0
9.1
Thermal Diffusivity, mm2/s 110
22
Thermal Shock Resistance, points 7.8
8.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.3
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.9 to 100
83 to 86
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0 to 0.0050
8.0 to 10
Nickel (Ni), % 0
0 to 1.0
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.3 to 6.0
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0
0 to 1.0