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AISI 301LN Stainless Steel vs. 4006 Aluminum

AISI 301LN stainless steel belongs to the iron alloys classification, while 4006 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 301LN stainless steel and the bottom bar is 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
28 to 45
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 23 to 51
3.4 to 24
Fatigue Strength, MPa 270 to 520
35 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 450 to 670
70 to 91
Tensile Strength: Ultimate (UTS), MPa 630 to 1060
110 to 160
Tensile Strength: Yield (Proof), MPa 270 to 770
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 890
160
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
220
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
56
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
180

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.1
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 130
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 290
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1520
28 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22 to 38
11 to 16
Strength to Weight: Bending, points 21 to 30
19 to 24
Thermal Diffusivity, mm2/s 4.0
89
Thermal Shock Resistance, points 14 to 24
4.9 to 7.0

Alloy Composition

Aluminum (Al), % 0
97.4 to 98.7
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 70.7 to 77.9
0.5 to 0.8
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0 to 2.0
0 to 0.050
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.070 to 0.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15

Comparable Variants