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2618A Aluminum vs. EN 1.5402 Steel

2618A aluminum belongs to the aluminum alloys classification, while EN 1.5402 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 2618A aluminum and the bottom bar is EN 1.5402 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 4.5
23
Fatigue Strength, MPa 120
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 260
370
Tensile Strength: Ultimate (UTS), MPa 440
580
Tensile Strength: Yield (Proof), MPa 410
370

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 230
410
Melting Completion (Liquidus), °C 670
1470
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
51
Thermal Expansion, µm/m-K 23
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
2.4
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.4
1.7
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1150
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 41
21
Strength to Weight: Bending, points 44
20
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 19
17

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0
Carbon (C), % 0
0 to 0.18
Copper (Cu), % 1.8 to 2.7
0
Iron (Fe), % 0.9 to 1.4
97.3 to 98.7
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.25
0.9 to 1.4
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0.8 to 1.4
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.15 to 0.25
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0.040 to 0.080
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0