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238.0 Aluminum vs. C90900 Bronze

238.0 aluminum belongs to the aluminum alloys classification, while C90900 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is C90900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
110
Elongation at Break, % 1.5
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
40
Tensile Strength: Ultimate (UTS), MPa 210
280
Tensile Strength: Yield (Proof), MPa 170
140

Thermal Properties

Latent Heat of Fusion, J/g 430
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 510
820
Specific Heat Capacity, J/kg-K 840
360
Thermal Conductivity, W/m-K 100
65
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
11
Electrical Conductivity: Equal Weight (Specific), % IACS 67
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 3.4
8.7
Embodied Carbon, kg CO2/kg material 7.4
3.9
Embodied Energy, MJ/kg 140
64
Embodied Water, L/kg 1040
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
35
Resilience: Unit (Modulus of Resilience), kJ/m3 180
89
Stiffness to Weight: Axial, points 12
6.8
Stiffness to Weight: Bending, points 42
18
Strength to Weight: Axial, points 17
8.8
Strength to Weight: Bending, points 23
11
Thermal Diffusivity, mm2/s 37
21
Thermal Shock Resistance, points 9.1
10

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 9.5 to 10.5
86 to 89
Iron (Fe), % 1.0 to 1.5
0 to 0.15
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 3.6 to 4.4
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
12 to 14
Zinc (Zn), % 1.0 to 1.5
0 to 0.25
Residuals, % 0
0 to 0.6