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S44700 Stainless Steel vs. 206.0 Aluminum

S44700 stainless steel belongs to the iron alloys classification, while 206.0 aluminum belongs to the aluminum alloys. There are 27 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 S44700 stainless steel and the bottom bar is 206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 210
71
Elongation at Break, % 23
8.4 to 12
Fatigue Strength, MPa 300
88 to 210
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 82
27
Shear Strength, MPa 380
260
Tensile Strength: Ultimate (UTS), MPa 600
330 to 440
Tensile Strength: Yield (Proof), MPa 450
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 480
880
Thermal Expansion, µm/m-K 11
19

Otherwise Unclassified Properties

Base Metal Price, % relative 18
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 3.6
8.0
Embodied Energy, MJ/kg 49
150
Embodied Water, L/kg 180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 480
270 to 840
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 21
30 to 40
Strength to Weight: Bending, points 20
35 to 42
Thermal Shock Resistance, points 19
17 to 23

Alloy Composition

Aluminum (Al), % 0
93.3 to 95.3
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
4.2 to 5.0
Iron (Fe), % 64.9 to 68.5
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 0.3
0.2 to 0.5
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 0 to 0.15
0 to 0.050
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0 to 0.1
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15