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5082 Aluminum vs. ASTM Grade LC2-1 Steel

5082 aluminum belongs to the aluminum alloys classification, while ASTM grade LC2-1 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 5082 aluminum and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 1.1
20
Fatigue Strength, MPa 110 to 130
430
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Tensile Strength: Ultimate (UTS), MPa 380 to 400
810
Tensile Strength: Yield (Proof), MPa 300 to 340
630

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 180
450
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 130
46
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
5.0
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.9
1.9
Embodied Energy, MJ/kg 150
25
Embodied Water, L/kg 1180
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
150
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 39 to 41
29
Strength to Weight: Bending, points 43 to 45
25
Thermal Diffusivity, mm2/s 54
12
Thermal Shock Resistance, points 17 to 18
24

Alloy Composition

Aluminum (Al), % 93.5 to 96
0
Carbon (C), % 0
0 to 0.22
Chromium (Cr), % 0 to 0.15
1.4 to 1.9
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
92.5 to 95.3
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0 to 0.15
0.55 to 0.75
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0
2.5 to 3.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0