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AISI 310S Stainless Steel vs. 6101A Aluminum

AISI 310S stainless steel belongs to the iron alloys classification, while 6101A 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 310S stainless steel and the bottom bar is 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 34 to 44
11
Fatigue Strength, MPa 250 to 280
80
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 420 to 470
130
Tensile Strength: Ultimate (UTS), MPa 600 to 710
220
Tensile Strength: Yield (Proof), MPa 270 to 350
190

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
200
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
55
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
180

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 4.3
8.3
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 190
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
24
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 21 to 25
23
Strength to Weight: Bending, points 20 to 22
30
Thermal Diffusivity, mm2/s 4.1
84
Thermal Shock Resistance, points 14 to 16
10

Alloy Composition


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Aluminum (Al), % 0
97.9 to 99.3
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 48.3 to 57
0 to 0.4
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.5
0.3 to 0.7
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.1