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SAE-AISI A9 Steel vs. 5652 Aluminum

SAE-AISI A9 steel belongs to the iron alloys classification, while 5652 aluminum belongs to the aluminum 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 SAE-AISI A9 steel and the bottom bar is 5652 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
26
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
190 to 290

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 35
140
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
35
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.7
8.6
Embodied Energy, MJ/kg 70
150
Embodied Water, L/kg 82
1190

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 28 to 73
20 to 30
Strength to Weight: Bending, points 24 to 46
27 to 36
Thermal Diffusivity, mm2/s 9.6
57
Thermal Shock Resistance, points 25 to 66
8.4 to 13

Alloy Composition


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Aluminum (Al), % 0
95.8 to 97.7
Carbon (C), % 0.45 to 0.55
0
Chromium (Cr), % 4.8 to 5.5
0.15 to 0.35
Copper (Cu), % 0 to 0.25
0 to 0.040
Iron (Fe), % 87 to 90.5
0 to 0.4
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0 to 0.5
0 to 0.010
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 1.3 to 1.8
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.0 to 1.2
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.4
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15

Comparable Variants