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EN 1.3543 Stainless Steel vs. 2618A Aluminum

EN 1.3543 stainless steel belongs to the iron alloys classification, while 2618A aluminum belongs to the aluminum 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 EN 1.3543 stainless steel and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 730
440

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 870
230
Melting Completion (Liquidus), °C 1430
670
Melting Onset (Solidus), °C 1390
560
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 22
150
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
37
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.3
8.4
Embodied Energy, MJ/kg 32
150
Embodied Water, L/kg 120
1150

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 27
41
Strength to Weight: Bending, points 24
44
Thermal Diffusivity, mm2/s 6.1
59
Thermal Shock Resistance, points 26
19

Alloy Composition


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Aluminum (Al), % 0
91.5 to 95.2
Carbon (C), % 1.0 to 1.2
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
1.8 to 2.7
Iron (Fe), % 79.1 to 83.6
0.9 to 1.4
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 1.0
0 to 0.25
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 0
0.8 to 1.4
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.15 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15