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AISI 201LN Stainless Steel vs. 511.0 Aluminum

AISI 201LN stainless steel belongs to the iron alloys classification, while 511.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 201LN stainless steel and the bottom bar is 511.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
50
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 25 to 51
3.0
Fatigue Strength, MPa 340 to 540
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 530 to 680
120
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
150
Tensile Strength: Yield (Proof), MPa 350 to 770
83

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
36
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.8
Embodied Energy, MJ/kg 38
150
Embodied Water, L/kg 140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
3.7
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
51
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 27 to 38
15
Strength to Weight: Bending, points 24 to 30
23
Thermal Diffusivity, mm2/s 4.0
59
Thermal Shock Resistance, points 16 to 23
6.5

Alloy Composition

Aluminum (Al), % 0
93.3 to 96.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
0 to 0.15
Iron (Fe), % 67.9 to 73.5
0 to 0.5
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 6.4 to 7.5
0 to 0.35
Nickel (Ni), % 4.0 to 5.0
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0.3 to 0.7
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15