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8090 Aluminum vs. EN 1.8912 Steel

8090 aluminum belongs to the aluminum alloys classification, while EN 1.8912 steel belongs to the iron 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 8090 aluminum and the bottom bar is EN 1.8912 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 3.5 to 13
20
Fatigue Strength, MPa 91 to 140
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Tensile Strength: Ultimate (UTS), MPa 340 to 490
600
Tensile Strength: Yield (Proof), MPa 210 to 420
410

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 95 to 160
46
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 66
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.6
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
1.8
Embodied Energy, MJ/kg 170
24
Embodied Water, L/kg 1160
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
110
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 34 to 49
21
Strength to Weight: Bending, points 39 to 50
20
Thermal Diffusivity, mm2/s 36 to 60
12
Thermal Shock Resistance, points 15 to 22
18

Alloy Composition


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Aluminum (Al), % 93 to 98.4
0 to 0.015
Carbon (C), % 0
0 to 0.22
Chromium (Cr), % 0 to 0.1
0 to 0.35
Copper (Cu), % 1.0 to 1.6
0 to 0.6
Iron (Fe), % 0 to 0.3
95 to 99.05
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
1.0 to 1.8
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.027
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.65
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0 to 0.060
Vanadium (V), % 0
0 to 0.22
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0