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6101A Aluminum vs. AISI 202 Stainless Steel

6101A aluminum belongs to the aluminum alloys classification, while AISI 202 stainless steel belongs to the iron 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 6101A aluminum and the bottom bar is AISI 202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 11
14 to 45
Fatigue Strength, MPa 80
290 to 330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 130
490 to 590
Tensile Strength: Ultimate (UTS), MPa 220
700 to 980
Tensile Strength: Yield (Proof), MPa 190
310 to 580

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 160
910
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 630
1360
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 200
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 55
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 180
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 1190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 280
250 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 23
25 to 35
Strength to Weight: Bending, points 30
23 to 29
Thermal Diffusivity, mm2/s 84
4.0
Thermal Shock Resistance, points 10
15 to 21

Alloy Composition

Aluminum (Al), % 97.9 to 99.3
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
63.5 to 71.5
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0
7.5 to 10
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0.3 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.1
0