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206.0 Aluminum vs. AISI 201 Stainless Steel

206.0 aluminum belongs to the aluminum alloys classification, while AISI 201 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 206.0 aluminum and the bottom bar is AISI 201 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
200 to 440
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 8.4 to 12
4.6 to 51
Fatigue Strength, MPa 88 to 210
280 to 600
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 260
450 to 840
Tensile Strength: Ultimate (UTS), MPa 330 to 440
650 to 1450
Tensile Strength: Yield (Proof), MPa 190 to 350
300 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 650
1410
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
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
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
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
61 to 340
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 840
230 to 2970
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 30 to 40
23 to 52
Strength to Weight: Bending, points 35 to 42
22 to 37
Thermal Diffusivity, mm2/s 46
4.0
Thermal Shock Resistance, points 17 to 23
14 to 32

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.15
67.5 to 75
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0.2 to 0.5
5.5 to 7.5
Nickel (Ni), % 0 to 0.050
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.060
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