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2024 Aluminum vs. EN 1.4107 Stainless Steel

2024 aluminum belongs to the aluminum alloys classification, while EN 1.4107 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4107 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.0 to 16
18 to 21
Fatigue Strength, MPa 90 to 180
260 to 350
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 200 to 540
620 to 700
Tensile Strength: Yield (Proof), MPa 100 to 490
400 to 570

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 200
740
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 500
1410
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 120
27
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 90
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
7.5
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.1
Embodied Energy, MJ/kg 150
30
Embodied Water, L/kg 1140
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
420 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 18 to 50
22 to 25
Strength to Weight: Bending, points 25 to 49
21 to 22
Thermal Diffusivity, mm2/s 46
7.2
Thermal Shock Resistance, points 8.6 to 24
22 to 25

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
11.5 to 12.5
Copper (Cu), % 3.8 to 4.9
0 to 0.3
Iron (Fe), % 0 to 0.5
83.8 to 87.2
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0.8 to 1.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0 to 0.080
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0

Comparable Variants