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2024 Aluminum vs. SAE-AISI 50B60 Steel

2024 aluminum belongs to the aluminum alloys classification, while SAE-AISI 50B60 steel belongs to the iron 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 2024 aluminum and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.0 to 16
12 to 20
Fatigue Strength, MPa 90 to 180
240 to 330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Shear Strength, MPa 130 to 320
380
Tensile Strength: Ultimate (UTS), MPa 200 to 540
610 to 630
Tensile Strength: Yield (Proof), MPa 100 to 490
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 200
410
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 500
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
45
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.0
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1140
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 18 to 50
22 to 23
Strength to Weight: Bending, points 25 to 49
20 to 21
Thermal Diffusivity, mm2/s 46
12
Thermal Shock Resistance, points 8.6 to 24
20

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0 to 0.1
0.4 to 0.6
Copper (Cu), % 3.8 to 4.9
0
Iron (Fe), % 0 to 0.5
97.3 to 98.1
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0.75 to 1.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0

Comparable Variants