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EN AC-48000 Aluminum vs. SAE-AISI A2 Steel

EN AC-48000 aluminum belongs to the aluminum alloys classification, while SAE-AISI A2 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 EN AC-48000 aluminum and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
74
Tensile Strength: Ultimate (UTS), MPa 220 to 310
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 570
260
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 560
1410
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 130
38
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 1030
73

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 23 to 33
25 to 73
Strength to Weight: Bending, points 31 to 39
23 to 46
Thermal Diffusivity, mm2/s 54
10
Thermal Shock Resistance, points 10 to 15
25 to 71

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0.8 to 1.5
0 to 0.25
Iron (Fe), % 0 to 0.7
89.4 to 93.3
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0.7 to 1.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0.15 to 0.5
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0