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EN AC-44000 Aluminum vs. SAE-AISI 4620 Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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-44000 aluminum and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 7.3
16 to 27
Fatigue Strength, MPa 64
260 to 360
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
490 to 680
Tensile Strength: Yield (Proof), MPa 86
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 560
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 140
47
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.2
Density, g/cm3 2.5
7.9
Embodied Carbon, kg CO2/kg material 7.8
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1070
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 51
330 to 800
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 20
17 to 24
Strength to Weight: Bending, points 28
18 to 22
Thermal Diffusivity, mm2/s 61
13
Thermal Shock Resistance, points 8.4
15 to 20

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Carbon (C), % 0
0.17 to 0.22
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
96.4 to 97.4
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 10 to 11.8
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0