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711.0 Aluminum vs. AISI 201 Stainless Steel

711.0 aluminum belongs to the aluminum alloys classification, while AISI 201 stainless steel belongs to the iron 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 711.0 aluminum and the bottom bar is AISI 201 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
200 to 440
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 7.8
4.6 to 51
Fatigue Strength, MPa 100
280 to 600
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 220
650 to 1450
Tensile Strength: Yield (Proof), MPa 140
300 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 610
1370
Specific Heat Capacity, J/kg-K 860
480
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1120
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
61 to 340
Resilience: Unit (Modulus of Resilience), kJ/m3 140
230 to 2970
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 20
23 to 52
Strength to Weight: Bending, points 26
22 to 37
Thermal Diffusivity, mm2/s 61
4.0
Thermal Shock Resistance, points 9.3
14 to 32

Alloy Composition

Aluminum (Al), % 89.8 to 92.7
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0.35 to 0.65
0
Iron (Fe), % 0.7 to 1.4
67.5 to 75
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.050
5.5 to 7.5
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.0 to 7.0
0
Residuals, % 0 to 0.15
0