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2618 Aluminum vs. EN 1.7365 Steel

2618 aluminum belongs to the aluminum alloys classification, while EN 1.7365 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 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
210
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.8
18
Fatigue Strength, MPa 110
320
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
74
Tensile Strength: Ultimate (UTS), MPa 420
700
Tensile Strength: Yield (Proof), MPa 350
470

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 210
510
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
40
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.4
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1150
70

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
110
Resilience: Unit (Modulus of Resilience), kJ/m3 850
580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 42
22
Thermal Diffusivity, mm2/s 62
11
Thermal Shock Resistance, points 19
20

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0
Carbon (C), % 0
0.12 to 0.19
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 1.9 to 2.7
0 to 0.3
Iron (Fe), % 0.9 to 1.3
91.2 to 94.9
Magnesium (Mg), % 1.3 to 1.8
0
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0.9 to 1.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.1 to 0.25
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.040 to 0.1
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0