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2618A Aluminum vs. SAE-AISI M62 Steel

2618A aluminum belongs to the aluminum alloys classification, while SAE-AISI M62 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 SAE-AISI M62 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 440
830 to 2440

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Melting Completion (Liquidus), °C 670
1650
Melting Onset (Solidus), °C 560
1600
Specific Heat Capacity, J/kg-K 880
430
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
30
Density, g/cm3 3.0
8.5
Embodied Carbon, kg CO2/kg material 8.4
10
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 41
27 to 80
Strength to Weight: Bending, points 44
23 to 47
Thermal Shock Resistance, points 19
24 to 71

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0
Carbon (C), % 0
1.3 to 1.4
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 1.8 to 2.7
0 to 0.25
Iron (Fe), % 0.9 to 1.4
73.6 to 77.4
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.25
0.15 to 0.4
Molybdenum (Mo), % 0
10 to 11
Nickel (Ni), % 0.8 to 1.4
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.15 to 0.25
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
5.8 to 6.5
Vanadium (V), % 0
1.8 to 2.1
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0