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6182 Aluminum vs. ASTM Grade LC2 Steel

6182 aluminum belongs to the aluminum alloys classification, while ASTM grade LC2 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 6182 aluminum and the bottom bar is ASTM grade LC2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 6.8 to 13
27
Fatigue Strength, MPa 63 to 99
230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 230 to 320
570
Tensile Strength: Yield (Proof), MPa 130 to 270
310

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
52
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.4
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.4
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1170
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
130
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 520
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 23 to 32
20
Strength to Weight: Bending, points 30 to 38
19
Thermal Diffusivity, mm2/s 65
14
Thermal Shock Resistance, points 10 to 14
17

Alloy Composition

Aluminum (Al), % 95 to 97.9
0
Carbon (C), % 0
0 to 0.25
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
95.3 to 97.5
Magnesium (Mg), % 0.7 to 1.2
0
Manganese (Mn), % 0.5 to 1.0
0.5 to 0.8
Nickel (Ni), % 0
2.0 to 3.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.9 to 1.3
0 to 0.6
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.050 to 0.2
0
Residuals, % 0 to 0.15
0