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EN 1.4669 Stainless Steel vs. 392.0 Aluminum

EN 1.4669 stainless steel belongs to the iron alloys classification, while 392.0 aluminum belongs to the aluminum alloys. There are 29 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 1.4669 stainless steel and the bottom bar is 392.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
75
Elongation at Break, % 28
0.86
Fatigue Strength, MPa 330
190
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
28
Tensile Strength: Ultimate (UTS), MPa 780
290
Tensile Strength: Yield (Proof), MPa 450
270

Thermal Properties

Latent Heat of Fusion, J/g 290
670
Maximum Temperature: Mechanical, °C 1030
170
Melting Completion (Liquidus), °C 1420
670
Melting Onset (Solidus), °C 1370
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
90

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
2.5
Embodied Carbon, kg CO2/kg material 2.6
7.5
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 160
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 510
490
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 25
56
Strength to Weight: Axial, points 28
32
Strength to Weight: Bending, points 24
39
Thermal Diffusivity, mm2/s 4.0
60
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 0
73.9 to 80.6
Carbon (C), % 0 to 0.045
0
Chromium (Cr), % 21.5 to 24
0
Copper (Cu), % 1.6 to 3.0
0.4 to 0.8
Iron (Fe), % 65.2 to 74.8
0 to 1.5
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 1.0 to 3.0
0.2 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
0 to 0.5
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
18 to 20
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5