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8090 Aluminum vs. SAE-AISI M36 Steel

8090 aluminum belongs to the aluminum alloys classification, while SAE-AISI M36 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 8090 aluminum and the bottom bar is SAE-AISI M36 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
78
Tensile Strength: Ultimate (UTS), MPa 340 to 490
810 to 2190

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
1600
Melting Onset (Solidus), °C 600
1550
Specific Heat Capacity, J/kg-K 960
440
Thermal Conductivity, W/m-K 95 to 160
19
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
38
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.6
9.5
Embodied Energy, MJ/kg 170
140
Embodied Water, L/kg 1160
140

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 34 to 49
27 to 72
Strength to Weight: Bending, points 39 to 50
23 to 44
Thermal Diffusivity, mm2/s 36 to 60
5.1
Thermal Shock Resistance, points 15 to 22
25 to 68

Alloy Composition


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Aluminum (Al), % 93 to 98.4
0
Carbon (C), % 0
0.8 to 0.9
Chromium (Cr), % 0 to 0.1
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 1.0 to 1.6
0 to 0.25
Iron (Fe), % 0 to 0.3
70.1 to 75.5
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 0
4.6 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
5.5 to 6.5
Vanadium (V), % 0
1.8 to 2.3
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0