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EN 1.3549 Stainless Steel vs. 5252 Aluminum

EN 1.3549 stainless steel belongs to the iron alloys classification, while 5252 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 5252 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
68 to 75
Elastic (Young's, Tensile) Modulus, GPa 200
68
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Tensile Strength: Ultimate (UTS), MPa 730
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 910
180
Melting Completion (Liquidus), °C 1430
650
Melting Onset (Solidus), °C 1390
610
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
120

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
8.7
Embodied Energy, MJ/kg 37
160
Embodied Water, L/kg 130
1190

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 27
23 to 30
Strength to Weight: Bending, points 24
31 to 36
Thermal Diffusivity, mm2/s 5.6
57
Thermal Shock Resistance, points 26
10 to 13

Alloy Composition

Aluminum (Al), % 0
96.6 to 97.8
Carbon (C), % 0.85 to 1.0
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 77.5 to 82
0 to 0.1
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0.9 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.070 to 0.12
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1