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EN 1.5508 Steel vs. 5254 Aluminum

EN 1.5508 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 (2, 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 1.5508 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, % 11 to 20
3.4 to 22
Fatigue Strength, MPa 210 to 320
110 to 160
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 300 to 360
150 to 200
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
240 to 350
Tensile Strength: Yield (Proof), MPa 310 to 490
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 51
130
Thermal Expansion, µm/m-K 13
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 1.9
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 44 to 230
11 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
73 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 15 to 52
25 to 37
Strength to Weight: Bending, points 16 to 36
32 to 41
Thermal Diffusivity, mm2/s 14
52
Thermal Shock Resistance, points 12 to 43
10 to 16

Alloy Composition

Aluminum (Al), % 0
94.4 to 96.8
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0
Chromium (Cr), % 0 to 0.3
0.15 to 0.35
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 97.9 to 99.199
0 to 0.45
Magnesium (Mg), % 0
3.1 to 3.9
Manganese (Mn), % 0.6 to 0.9
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0 to 0.45
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15