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850.0 Aluminum vs. SAE-AISI T1 Steel

850.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI T1 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, 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 850.0 aluminum and the bottom bar is SAE-AISI T1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 140
770 to 2130

Thermal Properties

Latent Heat of Fusion, J/g 380
240
Melting Completion (Liquidus), °C 650
1810
Melting Onset (Solidus), °C 370
1750
Specific Heat Capacity, J/kg-K 850
410
Thermal Conductivity, W/m-K 180
20
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
45
Density, g/cm3 3.1
9.3
Embodied Carbon, kg CO2/kg material 8.5
8.2
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 1160
90

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 44
21
Strength to Weight: Axial, points 12
23 to 64
Strength to Weight: Bending, points 19
20 to 40
Thermal Diffusivity, mm2/s 69
5.2
Thermal Shock Resistance, points 6.1
23 to 64

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0.65 to 0.8
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0.7 to 1.3
0 to 0.25
Iron (Fe), % 0 to 0.7
73.2 to 77.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0.1 to 0.4
Nickel (Ni), % 0.7 to 1.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.7
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
17.3 to 18.8
Vanadium (V), % 0
0.9 to 1.3
Residuals, % 0 to 0.3
0