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201.0 Aluminum vs. EN 1.4477 Stainless Steel

201.0 aluminum belongs to the aluminum alloys classification, while EN 1.4477 stainless steel belongs to the iron alloys. There are 31 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 201.0 aluminum and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 140
270
Elastic (Young's, Tensile) Modulus, GPa 71
210
Elongation at Break, % 4.4 to 20
22 to 23
Fatigue Strength, MPa 120 to 150
420 to 490
Impact Strength: V-Notched Charpy, J 10 to 22
110
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
81
Shear Strength, MPa 290
550 to 580
Tensile Strength: Ultimate (UTS), MPa 370 to 470
880 to 930
Tensile Strength: Yield (Proof), MPa 220 to 400
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 120
13
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 38
20
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.7
3.7
Embodied Energy, MJ/kg 160
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 63
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1160
940 to 1290
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 33 to 42
31 to 33
Strength to Weight: Bending, points 37 to 44
26 to 27
Thermal Diffusivity, mm2/s 45
3.5
Thermal Shock Resistance, points 19 to 25
23 to 25

Alloy Composition

Aluminum (Al), % 92.1 to 95.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 4.0 to 5.2
0 to 0.8
Iron (Fe), % 0 to 0.15
56.6 to 63.6
Magnesium (Mg), % 0.15 to 0.55
0
Manganese (Mn), % 0.2 to 0.5
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.5
Silver (Ag), % 0.4 to 1.0
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.15 to 0.35
0
Residuals, % 0 to 0.1
0