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1050 Aluminum vs. SAE-AISI O6 Steel

1050 aluminum belongs to the aluminum alloys classification, while SAE-AISI O6 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 1050 aluminum and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
71
Tensile Strength: Ultimate (UTS), MPa 76 to 140
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 650
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 230
43
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 1200
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.8 to 14
24 to 74
Strength to Weight: Bending, points 15 to 22
22 to 47
Thermal Diffusivity, mm2/s 94
12
Thermal Shock Resistance, points 3.4 to 6.2
22 to 69

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
1.3 to 1.6
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.4
94.6 to 97.7
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.3 to 1.1
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0.55 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0

Comparable Variants