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2618 Aluminum vs. EN 1.4034 Stainless Steel

2618 aluminum belongs to the aluminum alloys classification, while EN 1.4034 stainless steel belongs to the iron 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 2618 aluminum and the bottom bar is EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.8
11 to 14
Fatigue Strength, MPa 110
230 to 400
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 260
420 to 540
Tensile Strength: Ultimate (UTS), MPa 420
690 to 900
Tensile Strength: Yield (Proof), MPa 350
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 210
770
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 160
30
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
7.0
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.0
Embodied Energy, MJ/kg 150
27
Embodied Water, L/kg 1150
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 850
400 to 1370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 40
25 to 32
Strength to Weight: Bending, points 42
22 to 27
Thermal Diffusivity, mm2/s 62
8.1
Thermal Shock Resistance, points 19
24 to 32

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0
Carbon (C), % 0
0.43 to 0.5
Chromium (Cr), % 0
12.5 to 14.5
Copper (Cu), % 1.9 to 2.7
0
Iron (Fe), % 0.9 to 1.3
83 to 87.1
Magnesium (Mg), % 1.3 to 1.8
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0.9 to 1.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.1 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0