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EN 1.4826 Stainless Steel vs. 2618 Aluminum

EN 1.4826 stainless steel belongs to the iron alloys classification, while 2618 aluminum belongs to the aluminum alloys. There are 30 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 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
120
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 9.1
5.8
Fatigue Strength, MPa 140
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500
420
Tensile Strength: Yield (Proof), MPa 260
350

Thermal Properties

Latent Heat of Fusion, J/g 310
390
Maximum Temperature: Mechanical, °C 950
210
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1360
550
Specific Heat Capacity, J/kg-K 490
880
Thermal Conductivity, W/m-K 14
160
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 3.3
8.3
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
23
Resilience: Unit (Modulus of Resilience), kJ/m3 170
850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 18
40
Strength to Weight: Bending, points 18
42
Thermal Diffusivity, mm2/s 3.7
62
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.9
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 21 to 23
0
Copper (Cu), % 0
1.9 to 2.7
Iron (Fe), % 60.4 to 68.7
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 11
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0.1 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.040 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15