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AISI 202 Stainless Steel vs. 6261 Aluminum

AISI 202 stainless steel belongs to the iron alloys classification, while 6261 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 202 stainless steel and the bottom bar is 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 14 to 45
9.0 to 16
Fatigue Strength, MPa 290 to 330
60 to 120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 490 to 590
90 to 180
Tensile Strength: Ultimate (UTS), MPa 700 to 980
150 to 300
Tensile Strength: Yield (Proof), MPa 310 to 580
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 910
160
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1360
610
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
180
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
48
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
160

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
77 to 500
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25 to 35
15 to 31
Strength to Weight: Bending, points 23 to 29
23 to 37
Thermal Diffusivity, mm2/s 4.0
75
Thermal Shock Resistance, points 15 to 21
6.5 to 13

Alloy Composition

Aluminum (Al), % 0
96.6 to 98.6
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0 to 0.1
Copper (Cu), % 0
0.15 to 0.4
Iron (Fe), % 63.5 to 71.5
0 to 0.4
Magnesium (Mg), % 0
0.7 to 1.0
Manganese (Mn), % 7.5 to 10
0.2 to 0.35
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0.4 to 0.7
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants