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EN 1.4662 Stainless Steel vs. 8011A Aluminum

EN 1.4662 stainless steel belongs to the iron alloys classification, while 8011A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 EN 1.4662 stainless steel and the bottom bar is 8011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 28
1.7 to 28
Fatigue Strength, MPa 430 to 450
33 to 76
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 810 to 830
100 to 180
Tensile Strength: Yield (Proof), MPa 580 to 620
34 to 170

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 1090
170
Melting Completion (Liquidus), °C 1430
650
Melting Onset (Solidus), °C 1380
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
210
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
56
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
180

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.0
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.2
8.2
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
3.0 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
8.2 to 200
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 29 to 30
11 to 18
Strength to Weight: Bending, points 25
18 to 26
Thermal Diffusivity, mm2/s 3.9
86
Thermal Shock Resistance, points 22
4.6 to 8.1

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.1
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 23 to 25
0 to 0.1
Copper (Cu), % 0.1 to 0.8
0 to 0.1
Iron (Fe), % 62.6 to 70.2
0.5 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 2.5 to 4.0
0 to 0.1
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.7
0.4 to 0.8
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15