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5254 Aluminum vs. EN 1.5681 Steel

5254 aluminum belongs to the aluminum alloys classification, while EN 1.5681 steel belongs to the iron alloys. There are 29 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 5254 aluminum and the bottom bar is EN 1.5681 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 3.4 to 22
20
Fatigue Strength, MPa 110 to 160
300
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 240 to 350
630
Tensile Strength: Yield (Proof), MPa 100 to 270
430

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 190
420
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 130
48
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
5.0
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.8
1.9
Embodied Energy, MJ/kg 150
25
Embodied Water, L/kg 1180
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 41
110
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 550
490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 25 to 37
22
Strength to Weight: Bending, points 32 to 41
21
Thermal Diffusivity, mm2/s 52
13
Thermal Shock Resistance, points 10 to 16
19

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
0
Carbon (C), % 0
0.060 to 0.12
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.45
92.9 to 94.9
Magnesium (Mg), % 3.1 to 3.9
0
Manganese (Mn), % 0 to 0.010
0.5 to 0.8
Nickel (Ni), % 0
4.5 to 5.5
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.45
0 to 0.6
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0