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EN 1.5508 Steel vs. 1100 Aluminum

EN 1.5508 steel belongs to the iron alloys classification, while 1100 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 1.5508 steel and the bottom bar is 1100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 11 to 20
1.1 to 32
Fatigue Strength, MPa 210 to 320
32 to 71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 300 to 360
54 to 95
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
86 to 170
Tensile Strength: Yield (Proof), MPa 310 to 490
28 to 150

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 51
220
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
59
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
190

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
0.76 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
5.7 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 15 to 52
8.7 to 17
Strength to Weight: Bending, points 16 to 36
16 to 25
Thermal Diffusivity, mm2/s 14
90
Thermal Shock Resistance, points 12 to 43
3.7 to 7.4

Alloy Composition

Aluminum (Al), % 0
99 to 99.95
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0.050 to 0.2
Iron (Fe), % 97.9 to 99.199
0 to 1.0
Manganese (Mn), % 0.6 to 0.9
0 to 0.050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15