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EN 1.3549 Stainless Steel vs. 5049 Aluminum

EN 1.3549 stainless steel belongs to the iron alloys classification, while 5049 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 1.3549 stainless steel and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 200
69
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 730
210 to 330

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 910
190
Melting Completion (Liquidus), °C 1430
650
Melting Onset (Solidus), °C 1390
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.5
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 130
1180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 27
22 to 34
Strength to Weight: Bending, points 24
29 to 39
Thermal Diffusivity, mm2/s 5.6
56
Thermal Shock Resistance, points 26
9.3 to 15

Alloy Composition

Aluminum (Al), % 0
94.7 to 97.9
Carbon (C), % 0.85 to 1.0
0
Chromium (Cr), % 17 to 19
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 77.5 to 82
0 to 0.5
Magnesium (Mg), % 0
1.6 to 2.5
Manganese (Mn), % 0 to 1.0
0.5 to 1.1
Molybdenum (Mo), % 0.9 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0.070 to 0.12
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15