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AISI 201L Stainless Steel vs. 2095 Aluminum

AISI 201L stainless steel belongs to the iron alloys classification, while 2095 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 201L stainless steel and the bottom bar is 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 22 to 46
8.5
Fatigue Strength, MPa 270 to 530
200
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 520 to 660
410
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
700
Tensile Strength: Yield (Proof), MPa 290 to 790
610

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 880
210
Melting Completion (Liquidus), °C 1410
660
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.6
8.6
Embodied Energy, MJ/kg 38
160
Embodied Water, L/kg 140
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
57
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
2640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 27 to 37
65
Strength to Weight: Bending, points 24 to 30
59
Thermal Diffusivity, mm2/s 4.0
49
Thermal Shock Resistance, points 16 to 23
31

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.9
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
3.9 to 4.6
Iron (Fe), % 67.9 to 75
0 to 0.15
Lithium (Li), % 0
0.7 to 1.5
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 5.5 to 7.5
0 to 0.25
Nickel (Ni), % 3.5 to 5.5
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.18
Residuals, % 0
0 to 0.15