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1235 Aluminum vs. C91700 Bronze

1235 aluminum belongs to the aluminum alloys classification, while C91700 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 1235 aluminum and the bottom bar is C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 28 to 34
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 80 to 84
330
Tensile Strength: Yield (Proof), MPa 23 to 57
170

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 640
1020
Melting Onset (Solidus), °C 640
850
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 230
71
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
10
Electrical Conductivity: Equal Weight (Specific), % IACS 200
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.3
3.9
Embodied Energy, MJ/kg 160
63
Embodied Water, L/kg 1190
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
35
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
140
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 8.2 to 8.6
11
Strength to Weight: Bending, points 15 to 16
12
Thermal Diffusivity, mm2/s 93
22
Thermal Shock Resistance, points 3.6 to 3.7
12

Alloy Composition

Aluminum (Al), % 99.35 to 100
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
84.2 to 87.5
Iron (Fe), % 0 to 0.65
0 to 0.2
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
1.2 to 2.0
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0 to 0.65
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
11.3 to 12.5
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0 to 0.25