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EN 1.5402 Steel vs. 2618 Aluminum

EN 1.5402 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 (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 EN 1.5402 steel and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
120
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 23
5.8
Fatigue Strength, MPa 260
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 370
260
Tensile Strength: Ultimate (UTS), MPa 580
420
Tensile Strength: Yield (Proof), MPa 370
350

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 410
210
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 13
22

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
11
Density, g/cm3 7.9
2.9
Embodied Carbon, kg CO2/kg material 1.7
8.3
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 49
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
23
Resilience: Unit (Modulus of Resilience), kJ/m3 360
850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 21
40
Strength to Weight: Bending, points 20
42
Thermal Diffusivity, mm2/s 14
62
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.9
Carbon (C), % 0 to 0.18
0
Copper (Cu), % 0
1.9 to 2.7
Iron (Fe), % 97.3 to 98.7
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Manganese (Mn), % 0.9 to 1.4
0
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 0
0.9 to 1.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0.1 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.040 to 0.1
Vanadium (V), % 0.040 to 0.080
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15