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8090 Aluminum vs. S35000 Stainless Steel

8090 aluminum belongs to the aluminum alloys classification, while S35000 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 3.5 to 13
2.3 to 14
Fatigue Strength, MPa 91 to 140
380 to 520
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
78
Tensile Strength: Ultimate (UTS), MPa 340 to 490
1300 to 1570
Tensile Strength: Yield (Proof), MPa 210 to 420
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 190
900
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 95 to 160
16
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 66
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
14
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
3.2
Embodied Energy, MJ/kg 170
44
Embodied Water, L/kg 1160
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
1070 to 3360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 34 to 49
46 to 56
Strength to Weight: Bending, points 39 to 50
34 to 38
Thermal Diffusivity, mm2/s 36 to 60
4.4
Thermal Shock Resistance, points 15 to 22
42 to 51

Alloy Composition


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Aluminum (Al), % 93 to 98.4
0
Carbon (C), % 0
0.070 to 0.11
Chromium (Cr), % 0 to 0.1
16 to 17
Copper (Cu), % 1.0 to 1.6
0
Iron (Fe), % 0 to 0.3
72.7 to 76.9
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0

Comparable Variants