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EN 1.6773 Steel vs. 6106 Aluminum

EN 1.6773 steel belongs to the iron alloys classification, while 6106 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.6773 steel and the bottom bar is 6106 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 11
9.1
Fatigue Strength, MPa 560
88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 670
170
Tensile Strength: Ultimate (UTS), MPa 1120
290
Tensile Strength: Yield (Proof), MPa 910
220

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 450
160
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 46
190
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
49
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
160

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.9
8.3
Embodied Energy, MJ/kg 26
150
Embodied Water, L/kg 61
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
24
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 40
29
Strength to Weight: Bending, points 30
35
Thermal Diffusivity, mm2/s 12
78
Thermal Shock Resistance, points 33
13

Alloy Composition

Aluminum (Al), % 0
97.2 to 99.3
Carbon (C), % 0.32 to 0.39
0
Chromium (Cr), % 1.6 to 2.0
0 to 0.2
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92 to 93.9
0 to 0.35
Magnesium (Mg), % 0
0.4 to 0.8
Manganese (Mn), % 0.3 to 0.6
0.050 to 0.2
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.6 to 4.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.4
0.3 to 0.6
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15