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AISI 201LN Stainless Steel vs. 383.0 Aluminum

AISI 201LN stainless steel belongs to the iron alloys classification, while 383.0 aluminum belongs to the aluminum 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 AISI 201LN stainless steel and the bottom bar is 383.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
75
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 25 to 51
3.5
Fatigue Strength, MPa 340 to 540
150
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
28
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
280
Tensile Strength: Yield (Proof), MPa 350 to 770
150

Thermal Properties

Latent Heat of Fusion, J/g 280
540
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1410
580
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
96
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
74

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 2.6
7.5
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 140
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 27 to 38
28
Strength to Weight: Bending, points 24 to 30
34
Thermal Diffusivity, mm2/s 4.0
39
Thermal Shock Resistance, points 16 to 23
13

Alloy Composition

Aluminum (Al), % 0
79.7 to 88.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
2.0 to 3.0
Iron (Fe), % 67.9 to 73.5
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 6.4 to 7.5
0 to 0.5
Nickel (Ni), % 4.0 to 5.0
0 to 0.3
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
9.5 to 11.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5