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EN 1.5508 Steel vs. 6023 Aluminum

EN 1.5508 steel belongs to the iron alloys classification, while 6023 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 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 11 to 20
11
Fatigue Strength, MPa 210 to 320
120 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 300 to 360
210 to 220
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
360
Tensile Strength: Yield (Proof), MPa 310 to 490
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 51
170
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
45
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.4
8.3
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
38 to 39
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
670 to 690
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 15 to 52
35 to 36
Strength to Weight: Bending, points 16 to 36
40
Thermal Diffusivity, mm2/s 14
67
Thermal Shock Resistance, points 12 to 43
16

Alloy Composition

Aluminum (Al), % 0
94 to 97.7
Bismuth (Bi), % 0
0.3 to 0.8
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
0.2 to 0.5
Iron (Fe), % 97.9 to 99.199
0 to 0.5
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 0.6 to 0.9
0.2 to 0.6
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.3
0.6 to 1.4
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0.6 to 1.2
Residuals, % 0
0 to 0.15