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S32906 Stainless Steel vs. 772.0 Aluminum

S32906 stainless steel belongs to the iron alloys classification, while 772.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 772.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 28
6.3 to 8.4
Fatigue Strength, MPa 460
94 to 160
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 81
26
Tensile Strength: Ultimate (UTS), MPa 850
260 to 320
Tensile Strength: Yield (Proof), MPa 620
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
630
Melting Onset (Solidus), °C 1380
580
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 13
150
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.7
8.0
Embodied Energy, MJ/kg 52
150
Embodied Water, L/kg 190
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
16 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 950
350 to 430
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 30
25 to 31
Strength to Weight: Bending, points 26
31 to 36
Thermal Diffusivity, mm2/s 3.6
58
Thermal Shock Resistance, points 23
11 to 14

Alloy Composition


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Aluminum (Al), % 0
91.2 to 93.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 30
0.060 to 0.2
Copper (Cu), % 0 to 0.8
0 to 0.1
Iron (Fe), % 56.6 to 63.6
0 to 0.15
Magnesium (Mg), % 0
0.6 to 0.8
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
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15