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206.0 Aluminum vs. EN 1.4669 Stainless Steel

206.0 aluminum belongs to the aluminum alloys classification, while EN 1.4669 stainless steel belongs to the iron alloys. There are 32 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 206.0 aluminum and the bottom bar is EN 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
260
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 8.4 to 12
28
Fatigue Strength, MPa 88 to 210
330
Impact Strength: V-Notched Charpy, J 9.5
110
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
78
Shear Strength, MPa 260
500
Tensile Strength: Ultimate (UTS), MPa 330 to 440
780
Tensile Strength: Yield (Proof), MPa 190 to 350
450

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
1030
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
190
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 840
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 30 to 40
28
Strength to Weight: Bending, points 35 to 42
24
Thermal Diffusivity, mm2/s 46
4.0
Thermal Shock Resistance, points 17 to 23
21

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
0
Carbon (C), % 0
0 to 0.045
Chromium (Cr), % 0
21.5 to 24
Copper (Cu), % 4.2 to 5.0
1.6 to 3.0
Iron (Fe), % 0 to 0.15
65.2 to 74.8
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0.2 to 0.5
1.0 to 3.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.050
1.0 to 3.0
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0