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238.0 Aluminum vs. C91100 Bronze

238.0 aluminum belongs to the aluminum alloys classification, while C91100 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 C91100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
100
Elongation at Break, % 1.5
2.0
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
39
Tensile Strength: Ultimate (UTS), MPa 210
240
Tensile Strength: Yield (Proof), MPa 170
170

Thermal Properties

Latent Heat of Fusion, J/g 430
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
950
Melting Onset (Solidus), °C 510
820
Specific Heat Capacity, J/kg-K 840
360
Thermal Conductivity, W/m-K 100
63
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 67
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
38
Density, g/cm3 3.4
8.7
Embodied Carbon, kg CO2/kg material 7.4
4.2
Embodied Energy, MJ/kg 140
69
Embodied Water, L/kg 1040
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 12
6.7
Stiffness to Weight: Bending, points 42
18
Strength to Weight: Axial, points 17
7.7
Strength to Weight: Bending, points 23
9.9
Thermal Diffusivity, mm2/s 37
20
Thermal Shock Resistance, points 9.1
9.1

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
82 to 85
Iron (Fe), % 1.0 to 1.5
0 to 0.25
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 1.0
Silicon (Si), % 3.6 to 4.4
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
15 to 17
Zinc (Zn), % 1.0 to 1.5
0 to 0.25