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5049 Aluminum vs. SAE-AISI A6 Steel

5049 aluminum belongs to the aluminum alloys classification, while SAE-AISI A6 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 5049 aluminum and the bottom bar is SAE-AISI A6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 210 to 330
750 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 620
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
41
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.7
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1180
57

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 22 to 34
27 to 71
Strength to Weight: Bending, points 29 to 39
23 to 45
Thermal Diffusivity, mm2/s 56
11
Thermal Shock Resistance, points 9.3 to 15
25 to 65

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
0
Carbon (C), % 0
0.65 to 0.75
Chromium (Cr), % 0 to 0.3
0.9 to 1.2
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.5
93 to 95.8
Magnesium (Mg), % 1.6 to 2.5
0
Manganese (Mn), % 0.5 to 1.1
1.8 to 2.5
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0

Comparable Variants