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5026 Aluminum vs. ASTM Grade LC9 Steel

5026 aluminum belongs to the aluminum alloys classification, while ASTM grade LC9 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 5026 aluminum and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.1 to 11
22
Fatigue Strength, MPa 94 to 140
420
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 260 to 320
660
Tensile Strength: Yield (Proof), MPa 120 to 250
590

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 210
430
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 510
1410
Specific Heat Capacity, J/kg-K 890
470
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 99
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.9
2.3
Embodied Energy, MJ/kg 150
31
Embodied Water, L/kg 1150
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 29
140
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 440
920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 26 to 32
23
Strength to Weight: Bending, points 33 to 37
21
Thermal Shock Resistance, points 11 to 14
20

Alloy Composition

Aluminum (Al), % 88.2 to 94.7
0
Carbon (C), % 0
0 to 0.13
Chromium (Cr), % 0 to 0.3
0 to 0.5
Copper (Cu), % 0.1 to 0.8
0 to 0.3
Iron (Fe), % 0.2 to 1.0
87.4 to 91.5
Magnesium (Mg), % 3.9 to 4.9
0
Manganese (Mn), % 0.6 to 1.8
0 to 0.9
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
8.5 to 10
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.55 to 1.4
0 to 0.45
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Zirconium (Zr), % 0 to 0.3
0
Residuals, % 0 to 0.15
0