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520.0 Aluminum vs. EN 1.4424 Stainless Steel

520.0 aluminum belongs to the aluminum alloys classification, while EN 1.4424 stainless steel belongs to the iron alloys. There are 31 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 520.0 aluminum and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
230
Elastic (Young's, Tensile) Modulus, GPa 66
200
Elongation at Break, % 14
28
Fatigue Strength, MPa 55
350 to 370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
78
Shear Strength, MPa 230
520
Tensile Strength: Ultimate (UTS), MPa 330
800
Tensile Strength: Yield (Proof), MPa 170
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 170
960
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 87
13
Thermal Expansion, µm/m-K 25
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 9.8
3.4
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1170
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 230
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 35
29
Strength to Weight: Bending, points 41
25
Thermal Diffusivity, mm2/s 37
3.5
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 87.9 to 90.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.3
68.6 to 72.4
Magnesium (Mg), % 9.5 to 10.6
0
Manganese (Mn), % 0 to 0.15
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
4.5 to 5.2
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.25
1.4 to 2.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0