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SAE-AISI A6 Steel vs. B443.0 Aluminum

SAE-AISI A6 steel belongs to the iron alloys classification, while B443.0 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 SAE-AISI A6 steel and the bottom bar is B443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 750 to 1990
150

Thermal Properties

Latent Heat of Fusion, J/g 250
470
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1410
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 41
150
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
38
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.0
Embodied Energy, MJ/kg 24
150
Embodied Water, L/kg 57
1130

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 27 to 71
15
Strength to Weight: Bending, points 23 to 45
23
Thermal Diffusivity, mm2/s 11
61
Thermal Shock Resistance, points 25 to 65
6.8

Alloy Composition

Aluminum (Al), % 0
91.9 to 95.5
Carbon (C), % 0.65 to 0.75
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.25
0 to 0.15
Iron (Fe), % 93 to 95.8
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 1.8 to 2.5
0 to 0.35
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15