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A380.0 Aluminum vs. AISI 201LN Stainless Steel

A380.0 aluminum belongs to the aluminum alloys classification, while AISI 201LN stainless steel belongs to the iron alloys. There are 31 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 A380.0 aluminum and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 3.3
25 to 51
Fatigue Strength, MPa 140
340 to 540
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 190
530 to 680
Tensile Strength: Ultimate (UTS), MPa 290
740 to 1060
Tensile Strength: Yield (Proof), MPa 160
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 510
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 590
1410
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 96
15
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 78
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.5
2.6
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 1040
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 180
310 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28
27 to 38
Strength to Weight: Bending, points 34
24 to 30
Thermal Diffusivity, mm2/s 38
4.0
Thermal Shock Resistance, points 13
16 to 23

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16 to 17.5
Copper (Cu), % 3.0 to 4.0
0 to 1.0
Iron (Fe), % 0 to 1.3
67.9 to 73.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
6.4 to 7.5
Nickel (Ni), % 0 to 0.5
4.0 to 5.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0