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EN 1.4024 Stainless Steel vs. 8090 Aluminum

EN 1.4024 stainless steel belongs to the iron alloys classification, while 8090 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 EN 1.4024 stainless steel and the bottom bar is 8090 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 15 to 22
3.5 to 13
Fatigue Strength, MPa 220 to 300
91 to 140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
25
Tensile Strength: Ultimate (UTS), MPa 590 to 750
340 to 490
Tensile Strength: Yield (Proof), MPa 330 to 510
210 to 420

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 760
190
Melting Completion (Liquidus), °C 1440
660
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
960
Thermal Conductivity, W/m-K 30
95 to 160
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
20
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
66

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
18
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.9
8.6
Embodied Energy, MJ/kg 27
170
Embodied Water, L/kg 100
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
16 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 660
340 to 1330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21 to 27
34 to 49
Strength to Weight: Bending, points 20 to 24
39 to 50
Thermal Diffusivity, mm2/s 8.1
36 to 60
Thermal Shock Resistance, points 21 to 26
15 to 22

Alloy Composition

Aluminum (Al), % 0
93 to 98.4
Carbon (C), % 0.12 to 0.17
0
Chromium (Cr), % 12 to 14
0 to 0.1
Copper (Cu), % 0
1.0 to 1.6
Iron (Fe), % 83.8 to 87.9
0 to 0.3
Lithium (Li), % 0
2.2 to 2.7
Magnesium (Mg), % 0
0.6 to 1.3
Manganese (Mn), % 0 to 1.0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.16
Residuals, % 0
0 to 0.15

Comparable Variants