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A206.0 Aluminum vs. S21600 Stainless Steel

A206.0 aluminum belongs to the aluminum alloys classification, while S21600 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 A206.0 aluminum and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
200
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.2 to 10
46
Fatigue Strength, MPa 90 to 180
360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 260
500
Tensile Strength: Ultimate (UTS), MPa 390 to 440
710
Tensile Strength: Yield (Proof), MPa 250 to 380
390

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 670
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
3.6
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
270
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 36 to 41
25
Strength to Weight: Bending, points 39 to 43
23
Thermal Shock Resistance, points 17 to 19
15

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.1
57.6 to 67.8
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.050
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 0.75
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