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2618 Aluminum vs. EN 1.5415 Steel

2618 aluminum belongs to the aluminum alloys classification, while EN 1.5415 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1.5415 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
150
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.8
24
Fatigue Strength, MPa 110
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 260
320
Tensile Strength: Ultimate (UTS), MPa 420
510
Tensile Strength: Yield (Proof), MPa 350
280

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 210
410
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 160
49
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.3
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
100
Resilience: Unit (Modulus of Resilience), kJ/m3 850
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 40
18
Strength to Weight: Bending, points 42
18
Thermal Diffusivity, mm2/s 62
13
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0
Carbon (C), % 0
0.12 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 1.9 to 2.7
0 to 0.3
Iron (Fe), % 0.9 to 1.3
97.3 to 99.23
Magnesium (Mg), % 1.3 to 1.8
0
Manganese (Mn), % 0
0.4 to 0.9
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 0.9 to 1.2
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.1 to 0.25
0 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0