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2011A Aluminum vs. AISI 317LMN Stainless Steel

2011A aluminum belongs to the aluminum alloys classification, while AISI 317LMN stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 2011A aluminum and the bottom bar is AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.8 to 16
45
Fatigue Strength, MPa 75 to 100
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 190 to 250
430
Tensile Strength: Ultimate (UTS), MPa 310 to 410
620
Tensile Strength: Yield (Proof), MPa 140 to 310
270

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 190
1020
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 96
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 7.9
4.8
Embodied Energy, MJ/kg 150
65
Embodied Water, L/kg 1150
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
230
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 28 to 37
22
Strength to Weight: Bending, points 33 to 40
20
Thermal Diffusivity, mm2/s 49
3.8
Thermal Shock Resistance, points 14 to 18
14

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0
Bismuth (Bi), % 0.2 to 0.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 4.5 to 6.0
0
Iron (Fe), % 0 to 0.5
54.4 to 65.4
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
13.5 to 17.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0