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A206.0 Aluminum vs. S32906 Stainless Steel

A206.0 aluminum belongs to the aluminum alloys classification, while S32906 stainless steel belongs to the iron alloys. There are 31 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 A206.0 aluminum and the bottom bar is S32906 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
270
Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 4.2 to 10
28
Fatigue Strength, MPa 90 to 180
460
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Shear Strength, MPa 260
550
Tensile Strength: Ultimate (UTS), MPa 390 to 440
850
Tensile Strength: Yield (Proof), MPa 250 to 380
620

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 670
1430
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
20
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
220
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
950
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 36 to 41
30
Strength to Weight: Bending, points 39 to 43
26
Thermal Diffusivity, mm2/s 48
3.6
Thermal Shock Resistance, points 17 to 19
23

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 4.2 to 5.0
0 to 0.8
Iron (Fe), % 0 to 0.1
56.6 to 63.6
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0 to 0.050
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.050
0 to 0.5
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