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EN 1.1151 Steel vs. 5254 Aluminum

EN 1.1151 steel belongs to the iron alloys classification, while 5254 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 1.1151 steel and the bottom bar is 5254 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 21 to 26
3.4 to 22
Fatigue Strength, MPa 180 to 240
110 to 160
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 300 to 330
150 to 200
Tensile Strength: Ultimate (UTS), MPa 460 to 520
240 to 350
Tensile Strength: Yield (Proof), MPa 240 to 340
100 to 270

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
190
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 50
130
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.8
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 100
11 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 310
73 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 16 to 18
25 to 37
Strength to Weight: Bending, points 17 to 18
32 to 41
Thermal Diffusivity, mm2/s 13
52
Thermal Shock Resistance, points 15 to 16
10 to 16

Alloy Composition

Aluminum (Al), % 0
94.4 to 96.8
Carbon (C), % 0.17 to 0.24
0
Chromium (Cr), % 0 to 0.4
0.15 to 0.35
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 97.7 to 99.43
0 to 0.45
Magnesium (Mg), % 0
3.1 to 3.9
Manganese (Mn), % 0.4 to 0.7
0 to 0.010
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0 to 0.45
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants