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EN 1.4517 Stainless Steel vs. 355.0 Aluminum

EN 1.4517 stainless steel belongs to the iron alloys classification, while 355.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 1.4517 stainless steel and the bottom bar is 355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 25
1.5 to 2.6
Fatigue Strength, MPa 380
55 to 70
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 730
200 to 260
Tensile Strength: Yield (Proof), MPa 550
150 to 190

Thermal Properties

Latent Heat of Fusion, J/g 300
470
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
620
Melting Onset (Solidus), °C 1390
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 17
150 to 170
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
38 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120 to 140

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.0
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
2.7 to 5.9
Resilience: Unit (Modulus of Resilience), kJ/m3 740
150 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 26
20 to 27
Strength to Weight: Bending, points 23
28 to 33
Thermal Diffusivity, mm2/s 4.6
60 to 69
Thermal Shock Resistance, points 20
9.1 to 12

Alloy Composition

Aluminum (Al), % 0
90.3 to 94.1
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24.5 to 26.5
0 to 0.25
Copper (Cu), % 2.8 to 3.5
1.0 to 1.5
Iron (Fe), % 56.7 to 65.1
0 to 0.6
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
4.5 to 5.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15