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S28200 Stainless Steel vs. 5449 Aluminum

S28200 stainless steel belongs to the iron alloys classification, while 5449 aluminum belongs to the aluminum alloys. There are 26 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 S28200 stainless steel and the bottom bar is 5449 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 45
4.0 to 17
Fatigue Strength, MPa 430
78 to 120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 610
130 to 190
Tensile Strength: Ultimate (UTS), MPa 870
210 to 330
Tensile Strength: Yield (Proof), MPa 460
91 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 900
190
Melting Completion (Liquidus), °C 1380
650
Melting Onset (Solidus), °C 1330
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 18
23

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.6
2.8
Embodied Carbon, kg CO2/kg material 2.8
8.5
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 160
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 540
60 to 480
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
50
Strength to Weight: Axial, points 32
22 to 33
Strength to Weight: Bending, points 27
29 to 39
Thermal Shock Resistance, points 17
9.4 to 15

Alloy Composition

Aluminum (Al), % 0
94.1 to 97.8
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0 to 0.3
Copper (Cu), % 0.75 to 1.3
0 to 0.3
Iron (Fe), % 57.7 to 64.1
0 to 0.7
Magnesium (Mg), % 0
1.6 to 2.6
Manganese (Mn), % 17 to 19
0.6 to 1.1
Molybdenum (Mo), % 0.75 to 1.3
0
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15