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5051A Aluminum vs. EN 1.3543 Stainless Steel

5051A aluminum belongs to the aluminum alloys classification, while EN 1.3543 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 5051A aluminum and the bottom bar is EN 1.3543 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
76
Tensile Strength: Ultimate (UTS), MPa 170
730

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 190
870
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 610
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 150
22
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.5
2.3
Embodied Energy, MJ/kg 150
32
Embodied Water, L/kg 1190
120

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 17 to 18
27
Strength to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 63
6.1
Thermal Shock Resistance, points 7.6
26

Alloy Composition


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Aluminum (Al), % 96.1 to 98.6
0
Carbon (C), % 0
1.0 to 1.2
Chromium (Cr), % 0 to 0.3
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.45
79.1 to 83.6
Magnesium (Mg), % 1.4 to 2.1
0
Manganese (Mn), % 0 to 0.25
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0