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AISI 205 Stainless Steel vs. 5254 Aluminum

AISI 205 stainless steel belongs to the iron alloys classification, while 5254 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 AISI 205 stainless steel and the bottom bar is 5254 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 11 to 51
3.4 to 22
Fatigue Strength, MPa 410 to 640
110 to 160
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 560 to 850
150 to 200
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
240 to 350
Tensile Strength: Yield (Proof), MPa 450 to 1100
100 to 270

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 880
190
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1340
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 18
24

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.6
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.8
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
11 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
73 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
51
Strength to Weight: Axial, points 29 to 52
25 to 37
Strength to Weight: Bending, points 25 to 37
32 to 41
Thermal Shock Resistance, points 16 to 29
10 to 16

Alloy Composition

Aluminum (Al), % 0
94.4 to 96.8
Carbon (C), % 0.12 to 0.25
0
Chromium (Cr), % 16.5 to 18.5
0.15 to 0.35
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 62.6 to 68.1
0 to 0.45
Magnesium (Mg), % 0
3.1 to 3.9
Manganese (Mn), % 14 to 15.5
0 to 0.010
Nickel (Ni), % 1.0 to 1.7
0
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants