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358.0 Aluminum vs. EN 1.4424 Stainless Steel

358.0 aluminum belongs to the aluminum alloys classification, while EN 1.4424 stainless steel belongs to the iron alloys. There are 30 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 358.0 aluminum and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 3.5 to 6.0
28
Fatigue Strength, MPa 100 to 110
350 to 370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Shear Strength, MPa 300 to 320
520
Tensile Strength: Ultimate (UTS), MPa 350 to 370
800
Tensile Strength: Yield (Proof), MPa 290 to 320
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 520
310
Maximum Temperature: Mechanical, °C 170
960
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 150
13
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 8.7
3.4
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1090
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 20
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 710
580 to 640
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 37 to 39
29
Strength to Weight: Bending, points 42 to 44
25
Thermal Diffusivity, mm2/s 63
3.5
Thermal Shock Resistance, points 16 to 17
23

Alloy Composition

Aluminum (Al), % 89.1 to 91.8
0
Beryllium (Be), % 0.1 to 0.3
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.2
18 to 19
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.3
68.6 to 72.4
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.2
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), % 7.6 to 8.6
1.4 to 2.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.1 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0