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2024 Aluminum vs. EN 1.8873 Steel

2024 aluminum belongs to the aluminum alloys classification, while EN 1.8873 steel belongs to the iron 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 2024 aluminum and the bottom bar is EN 1.8873 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.0 to 16
19
Fatigue Strength, MPa 90 to 180
340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 130 to 320
410
Tensile Strength: Ultimate (UTS), MPa 200 to 540
660
Tensile Strength: Yield (Proof), MPa 100 to 490
490

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 200
420
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 500
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.2
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1140
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
110
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 18 to 50
23
Strength to Weight: Bending, points 25 to 49
21
Thermal Diffusivity, mm2/s 46
10
Thermal Shock Resistance, points 8.6 to 24
19

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0 to 0.1
0 to 1.0
Copper (Cu), % 3.8 to 4.9
0 to 0.3
Iron (Fe), % 0 to 0.5
93.6 to 100
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 0
0 to 1.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0 to 0.050
Vanadium (V), % 0
0 to 0.080
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0 to 0.15
Residuals, % 0 to 0.15
0