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AISI 205 Stainless Steel vs. 2007 Aluminum

AISI 205 stainless steel belongs to the iron alloys classification, while 2007 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 2007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 11 to 51
5.6 to 8.0
Fatigue Strength, MPa 410 to 640
91 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 560 to 850
220 to 250
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
370 to 420
Tensile Strength: Yield (Proof), MPa 450 to 1100
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 880
190
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1340
510
Specific Heat Capacity, J/kg-K 480
870
Thermal Expansion, µm/m-K 18
23

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.6
3.1
Embodied Carbon, kg CO2/kg material 2.6
8.0
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
390 to 530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
44
Strength to Weight: Axial, points 29 to 52
33 to 38
Strength to Weight: Bending, points 25 to 37
37 to 40
Thermal Shock Resistance, points 16 to 29
16 to 19

Alloy Composition

Aluminum (Al), % 0
87.5 to 95
Bismuth (Bi), % 0
0 to 0.2
Carbon (C), % 0.12 to 0.25
0
Chromium (Cr), % 16.5 to 18.5
0 to 0.1
Copper (Cu), % 0
3.3 to 4.6
Iron (Fe), % 62.6 to 68.1
0 to 0.8
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 0
0.4 to 1.8
Manganese (Mn), % 14 to 15.5
0.5 to 1.0
Nickel (Ni), % 1.0 to 1.7
0 to 0.2
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 0.3