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AISI 201LN Stainless Steel vs. 380.0 Aluminum

AISI 201LN stainless steel belongs to the iron alloys classification, while 380.0 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 380.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
80
Elastic (Young's, Tensile) Modulus, GPa 200
74
Elongation at Break, % 25 to 51
3.0
Fatigue Strength, MPa 340 to 540
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
28
Shear Strength, MPa 530 to 680
190
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
320
Tensile Strength: Yield (Proof), MPa 350 to 770
160

Thermal Properties

Latent Heat of Fusion, J/g 280
510
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1410
590
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
83

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 2.6
7.5
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 140
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
8.0
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 27 to 38
31
Strength to Weight: Bending, points 24 to 30
36
Thermal Diffusivity, mm2/s 4.0
40
Thermal Shock Resistance, points 16 to 23
14

Alloy Composition

Aluminum (Al), % 0
79.6 to 89.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
3.0 to 4.0
Iron (Fe), % 67.9 to 73.5
0 to 2.0
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 0.5
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
7.5 to 9.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5