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AISI 201L Stainless Steel vs. EN AC-48100 Aluminum

AISI 201L stainless steel belongs to the iron alloys classification, while EN AC-48100 aluminum belongs to the aluminum alloys. There are 30 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 AISI 201L stainless steel and the bottom bar is EN AC-48100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 320
100 to 140
Elastic (Young's, Tensile) Modulus, GPa 200
76
Elongation at Break, % 22 to 46
1.1
Fatigue Strength, MPa 270 to 530
120 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
29
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
240 to 330
Tensile Strength: Yield (Proof), MPa 290 to 790
190 to 300

Thermal Properties

Latent Heat of Fusion, J/g 280
640
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1410
580
Melting Onset (Solidus), °C 1370
470
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
87

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 2.6
7.3
Embodied Energy, MJ/kg 38
130
Embodied Water, L/kg 140
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
2.3 to 3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
250 to 580
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 27 to 37
24 to 33
Strength to Weight: Bending, points 24 to 30
31 to 38
Thermal Diffusivity, mm2/s 4.0
55
Thermal Shock Resistance, points 16 to 23
11 to 16

Alloy Composition

Aluminum (Al), % 0
72.1 to 79.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 67.9 to 75
0 to 1.3
Magnesium (Mg), % 0
0.25 to 0.65
Manganese (Mn), % 5.5 to 7.5
0 to 0.5
Nickel (Ni), % 3.5 to 5.5
0 to 0.3
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
16 to 18
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.25