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S32906 Stainless Steel vs. 851.0 Aluminum

S32906 stainless steel belongs to the iron alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 S32906 stainless steel and the bottom bar is 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 28
3.9 to 9.1
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
26
Tensile Strength: Ultimate (UTS), MPa 850
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
630
Melting Onset (Solidus), °C 1380
360
Specific Heat Capacity, J/kg-K 480
850
Thermal Conductivity, W/m-K 13
180
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
46
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 20
14
Density, g/cm3 7.7
3.1
Embodied Carbon, kg CO2/kg material 3.7
8.4
Embodied Energy, MJ/kg 52
160
Embodied Water, L/kg 190
1140

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 30
12 to 13
Strength to Weight: Bending, points 26
19 to 20
Thermal Diffusivity, mm2/s 3.6
69
Thermal Shock Resistance, points 23
6.1 to 6.3

Alloy Composition


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Aluminum (Al), % 0
86.6 to 91.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0.7 to 1.3
Iron (Fe), % 56.6 to 63.6
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.8 to 1.5
0 to 0.1
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0.3 to 0.7
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Residuals, % 0
0 to 0.3