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1080 Aluminum vs. EN 1.3549 Stainless Steel

1080 aluminum belongs to the aluminum alloys classification, while EN 1.3549 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 1080 aluminum and the bottom bar is EN 1.3549 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 72 to 130
730

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 170
910
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 640
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 230
21
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 160
37
Embodied Water, L/kg 1200
130

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.4 to 14
27
Strength to Weight: Bending, points 14 to 22
24
Thermal Diffusivity, mm2/s 94
5.6
Thermal Shock Resistance, points 3.2 to 6.0
26

Alloy Composition

Aluminum (Al), % 99.8 to 100
0
Carbon (C), % 0
0.85 to 1.0
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.030
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.15
77.5 to 82
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0.070 to 0.12
Zinc (Zn), % 0 to 0.030
0
Residuals, % 0 to 0.020
0