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201.0 Aluminum vs. S64512 Stainless Steel

201.0 aluminum belongs to the aluminum alloys classification, while S64512 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 140
330
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 4.4 to 20
17
Fatigue Strength, MPa 120 to 150
540
Impact Strength: V-Notched Charpy, J 10 to 22
47
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 290
700
Tensile Strength: Ultimate (UTS), MPa 370 to 470
1140
Tensile Strength: Yield (Proof), MPa 220 to 400
890

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 170
750
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 19
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 38
10
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.7
3.3
Embodied Energy, MJ/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 63
180
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1160
2020
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 33 to 42
40
Strength to Weight: Bending, points 37 to 44
31
Thermal Diffusivity, mm2/s 45
7.5
Thermal Shock Resistance, points 19 to 25
42

Alloy Composition

Aluminum (Al), % 92.1 to 95.1
0
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 4.0 to 5.2
0
Iron (Fe), % 0 to 0.15
80.6 to 84.7
Magnesium (Mg), % 0.15 to 0.55
0
Manganese (Mn), % 0.2 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.35
Silver (Ag), % 0.4 to 1.0
0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.15 to 0.35
0
Vanadium (V), % 0
0.25 to 0.4
Residuals, % 0 to 0.1
0