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EN 1.4615 Stainless Steel vs. 2024 Aluminum

EN 1.4615 stainless steel belongs to the iron alloys classification, while 2024 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4615 stainless steel and the bottom bar is 2024 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 50
4.0 to 16
Fatigue Strength, MPa 190
90 to 180
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 360
130 to 320
Tensile Strength: Ultimate (UTS), MPa 500
200 to 540
Tensile Strength: Yield (Proof), MPa 200
100 to 490

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 840
200
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1360
500
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
90

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 140
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
20 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 99
70 to 1680
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18
18 to 50
Strength to Weight: Bending, points 18
25 to 49
Thermal Diffusivity, mm2/s 4.1
46
Thermal Shock Resistance, points 11
8.6 to 24

Alloy Composition

Aluminum (Al), % 0
90.7 to 94.7
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 14 to 16
0 to 0.1
Copper (Cu), % 2.0 to 4.0
3.8 to 4.9
Iron (Fe), % 63.1 to 72.5
0 to 0.5
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 7.0 to 9.0
0.3 to 0.9
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 4.5 to 6.0
0
Nitrogen (N), % 0.020 to 0.060
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15