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EN 1.4024 Stainless Steel vs. 357.0 Aluminum

EN 1.4024 stainless steel belongs to the iron alloys classification, while 357.0 aluminum belongs to the aluminum 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 EN 1.4024 stainless steel and the bottom bar is 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 15 to 22
3.4
Fatigue Strength, MPa 220 to 300
76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 370 to 460
200
Tensile Strength: Ultimate (UTS), MPa 590 to 750
350
Tensile Strength: Yield (Proof), MPa 330 to 510
300

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1400
560
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 30
150
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
39
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
140

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.9
8.0
Embodied Energy, MJ/kg 27
150
Embodied Water, L/kg 100
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
11
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 660
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 21 to 27
38
Strength to Weight: Bending, points 20 to 24
43
Thermal Diffusivity, mm2/s 8.1
64
Thermal Shock Resistance, points 21 to 26
17

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.1
Carbon (C), % 0.12 to 0.17
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 83.8 to 87.9
0 to 0.15
Magnesium (Mg), % 0
0.45 to 0.6
Manganese (Mn), % 0 to 1.0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
6.5 to 7.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15