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S28200 Stainless Steel vs. A444.0 Aluminum

S28200 stainless steel belongs to the iron alloys classification, while A444.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 A444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 45
18
Fatigue Strength, MPa 430
37
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 870
160
Tensile Strength: Yield (Proof), MPa 460
66

Thermal Properties

Latent Heat of Fusion, J/g 290
500
Maximum Temperature: Mechanical, °C 900
170
Melting Completion (Liquidus), °C 1380
630
Melting Onset (Solidus), °C 1330
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 18
22

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.6
2.6
Embodied Carbon, kg CO2/kg material 2.8
7.9
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
24
Resilience: Unit (Modulus of Resilience), kJ/m3 540
31
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
53
Strength to Weight: Axial, points 32
17
Strength to Weight: Bending, points 27
25
Thermal Shock Resistance, points 17
7.3

Alloy Composition

Aluminum (Al), % 0
91.6 to 93.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0.75 to 1.3
0 to 0.1
Iron (Fe), % 57.7 to 64.1
0 to 0.2
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 17 to 19
0 to 0.1
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
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15