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S28200 Stainless Steel vs. 204.0 Aluminum

S28200 stainless steel belongs to the iron alloys classification, while 204.0 aluminum belongs to the aluminum alloys. There are 26 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 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
90 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 45
5.7 to 7.8
Fatigue Strength, MPa 430
63 to 77
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 870
230 to 340
Tensile Strength: Yield (Proof), MPa 460
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 900
170
Melting Completion (Liquidus), °C 1380
650
Melting Onset (Solidus), °C 1330
580
Specific Heat Capacity, J/kg-K 480
880
Thermal Expansion, µm/m-K 18
19

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 7.6
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 540
220 to 350
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
46
Strength to Weight: Axial, points 32
21 to 31
Strength to Weight: Bending, points 27
28 to 36
Thermal Shock Resistance, points 17
12 to 18

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0.75 to 1.3
4.2 to 5.0
Iron (Fe), % 57.7 to 64.1
0 to 0.35
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 17 to 19
0 to 0.1
Molybdenum (Mo), % 0.75 to 1.3
0
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
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