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3303 Aluminum vs. ASTM Grade LC2-1 Steel

3303 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 3303 aluminum and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 43
430
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 110
810
Tensile Strength: Yield (Proof), MPa 39
630

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 180
450
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 620
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
46
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
5.0
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.9
Embodied Energy, MJ/kg 150
25
Embodied Water, L/kg 1180
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
150
Resilience: Unit (Modulus of Resilience), kJ/m3 11
1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 11
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 67
12
Thermal Shock Resistance, points 4.8
24

Alloy Composition

Aluminum (Al), % 96.6 to 99
0
Carbon (C), % 0
0 to 0.22
Chromium (Cr), % 0
1.4 to 1.9
Copper (Cu), % 0.050 to 0.2
0
Iron (Fe), % 0 to 0.7
92.5 to 95.3
Manganese (Mn), % 1.0 to 1.5
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 0.6
0 to 0.5
Sulfur (S), % 0
0 to 0.045
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0