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5050 Aluminum vs. EN 1.3549 Stainless Steel

5050 aluminum belongs to the aluminum alloys classification, while EN 1.3549 stainless steel belongs to the iron alloys. There are 25 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 5050 aluminum and the bottom bar is EN 1.3549 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 36 to 68
220
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 140 to 250
730

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 180
910
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 630
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
21
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 170
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 8.4
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1190
130

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 15 to 26
27
Strength to Weight: Bending, points 22 to 33
24
Thermal Diffusivity, mm2/s 79
5.6
Thermal Shock Resistance, points 6.3 to 11
26

Alloy Composition

Aluminum (Al), % 96.3 to 98.9
0
Carbon (C), % 0
0.85 to 1.0
Chromium (Cr), % 0 to 0.1
17 to 19
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.7
77.5 to 82
Magnesium (Mg), % 1.1 to 1.8
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.070 to 0.12
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0