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EN 1.4905 Stainless Steel vs. 206.0 Aluminum

EN 1.4905 stainless steel belongs to the iron alloys classification, while 206.0 aluminum belongs to the aluminum alloys. There are 31 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 1.4905 stainless steel and the bottom bar is 206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 19
8.4 to 12
Fatigue Strength, MPa 330
88 to 210
Impact Strength: V-Notched Charpy, J 38
9.5
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 460
260
Tensile Strength: Ultimate (UTS), MPa 740
330 to 440
Tensile Strength: Yield (Proof), MPa 510
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 660
170
Melting Completion (Liquidus), °C 1480
650
Melting Onset (Solidus), °C 1440
570
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 11
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
33
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
99

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 90
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 680
270 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 26
30 to 40
Strength to Weight: Bending, points 23
35 to 42
Thermal Diffusivity, mm2/s 7.0
46
Thermal Shock Resistance, points 25
17 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.040
93.3 to 95.3
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0
Chromium (Cr), % 8.5 to 9.5
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 86.2 to 88.8
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0.3 to 0.6
0.2 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0 to 0.050
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15