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ASTM Grade LC4 Steel vs. 6463 Aluminum

ASTM grade LC4 steel belongs to the iron alloys classification, while 6463 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 ASTM grade LC4 steel and the bottom bar is 6463 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
42 to 74
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 27
9.0 to 17
Fatigue Strength, MPa 230
45 to 76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 570
140 to 230
Tensile Strength: Yield (Proof), MPa 310
82 to 200

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
190 to 210
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
50 to 55
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
170 to 180

Otherwise Unclassified Properties

Base Metal Price, % relative 4.6
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.3
Embodied Energy, MJ/kg 24
150
Embodied Water, L/kg 54
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 260
50 to 300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 20
14 to 24
Strength to Weight: Bending, points 19
22 to 31
Thermal Diffusivity, mm2/s 13
79 to 86
Thermal Shock Resistance, points 17
6.3 to 10

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.4
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 93.4 to 95.5
0 to 0.15
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0.5 to 0.8
0 to 0.050
Nickel (Ni), % 4.0 to 5.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.6
0.2 to 0.6
Sulfur (S), % 0 to 0.045
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15