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EN 1.4826 Stainless Steel vs. A201.0 Aluminum

EN 1.4826 stainless steel belongs to the iron alloys classification, while A201.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1.4826 stainless steel and the bottom bar is A201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 9.1
4.7
Fatigue Strength, MPa 140
97
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500
480
Tensile Strength: Yield (Proof), MPa 260
420

Thermal Properties

Latent Heat of Fusion, J/g 310
390
Maximum Temperature: Mechanical, °C 950
170
Melting Completion (Liquidus), °C 1400
650
Melting Onset (Solidus), °C 1360
570
Specific Heat Capacity, J/kg-K 490
880
Thermal Conductivity, W/m-K 14
120
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
90

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.3
8.1
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
22
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18
44
Strength to Weight: Bending, points 18
45
Thermal Diffusivity, mm2/s 3.7
46
Thermal Shock Resistance, points 11
21

Alloy Composition

Aluminum (Al), % 0
93.7 to 95.5
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 21 to 23
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 60.4 to 68.7
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.15 to 0.35
Residuals, % 0
0 to 0.1