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EN 1.4567 Stainless Steel vs. 2618 Aluminum

EN 1.4567 stainless steel belongs to the iron alloys classification, while 2618 aluminum belongs to the aluminum alloys. There are 31 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 1.4567 stainless steel and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
120
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 22 to 51
5.8
Fatigue Strength, MPa 190 to 260
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 390 to 490
260
Tensile Strength: Ultimate (UTS), MPa 550 to 780
420
Tensile Strength: Yield (Proof), MPa 200 to 390
350

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 930
210
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
550
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 11
160
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 3.1
8.3
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
23
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 400
850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 19 to 27
40
Strength to Weight: Bending, points 19 to 24
42
Thermal Diffusivity, mm2/s 3.0
62
Thermal Shock Resistance, points 12 to 17
19

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.9
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 3.0 to 4.0
1.9 to 2.7
Iron (Fe), % 63.3 to 71.5
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.5 to 10.5
0.9 to 1.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.1 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.040 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15