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5021 Aluminum vs. EN 1.7367 Steel

5021 aluminum belongs to the aluminum alloys classification, while EN 1.7367 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 5021 aluminum and the bottom bar is EN 1.7367 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 3.4
18
Fatigue Strength, MPa 85 to 110
310
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Tensile Strength: Ultimate (UTS), MPa 300 to 310
670
Tensile Strength: Yield (Proof), MPa 240 to 270
460

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 180
600
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
26
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1180
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
110
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 30 to 32
24
Strength to Weight: Bending, points 37
22
Thermal Diffusivity, mm2/s 57
6.9
Thermal Shock Resistance, points 13 to 14
19

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
0 to 0.020
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0 to 0.15
8.0 to 9.5
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.5
87.3 to 90.3
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0.1 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0.2 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.15
0