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EN 1.4415 Stainless Steel vs. 518.0 Aluminum

EN 1.4415 stainless steel belongs to the iron alloys classification, while 518.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1.4415 stainless steel and the bottom bar is 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 17 to 20
5.0
Fatigue Strength, MPa 470 to 510
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 520 to 570
200
Tensile Strength: Ultimate (UTS), MPa 830 to 930
310
Tensile Strength: Yield (Proof), MPa 730 to 840
190

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 790
170
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 19
98
Thermal Expansion, µm/m-K 9.9
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
81

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.6
9.4
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 120
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
14
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 29 to 33
32
Strength to Weight: Bending, points 25 to 27
38
Thermal Diffusivity, mm2/s 5.1
40
Thermal Shock Resistance, points 30 to 34
14

Alloy Composition

Aluminum (Al), % 0
88.1 to 92.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 75.9 to 82.4
0 to 1.8
Magnesium (Mg), % 0
7.5 to 8.5
Manganese (Mn), % 0 to 0.5
0 to 0.35
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 4.5 to 6.5
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.25