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8011A Aluminum vs. EN 1.4729 Stainless Steel

8011A aluminum belongs to the aluminum alloys classification, while EN 1.4729 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 8011A aluminum and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 50
260
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.7 to 28
15
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
850
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 630
1380
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 210
24
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 180
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
7.5
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.2
2.1
Embodied Energy, MJ/kg 150
29
Embodied Water, L/kg 1180
100

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Thermal Diffusivity, mm2/s 86
6.5

Alloy Composition

Aluminum (Al), % 97.5 to 99.1
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0 to 0.1
12 to 14
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0.5 to 1.0
80.4 to 86.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.4 to 0.8
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0