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EN 1.4024 Stainless Steel vs. A390.0 Aluminum

EN 1.4024 stainless steel belongs to the iron alloys classification, while A390.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 A390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
75
Elongation at Break, % 15 to 22
0.87 to 0.91
Fatigue Strength, MPa 220 to 300
70 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
28
Tensile Strength: Ultimate (UTS), MPa 590 to 750
190 to 290
Tensile Strength: Yield (Proof), MPa 330 to 510
190 to 290

Thermal Properties

Latent Heat of Fusion, J/g 270
640
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
580
Melting Onset (Solidus), °C 1400
480
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 30
130
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
20
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
67

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
11
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 1.9
7.3
Embodied Energy, MJ/kg 27
140
Embodied Water, L/kg 100
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
1.6 to 2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 660
240 to 580
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 21 to 27
19 to 30
Strength to Weight: Bending, points 20 to 24
27 to 36
Thermal Diffusivity, mm2/s 8.1
56
Thermal Shock Resistance, points 21 to 26
9.0 to 14

Alloy Composition

Aluminum (Al), % 0
75.3 to 79.6
Carbon (C), % 0.12 to 0.17
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 83.8 to 87.9
0 to 0.5
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0 to 1.0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
16 to 18
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.2

Comparable Variants