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EN AC-44000 Aluminum vs. SAE-AISI 50B50 Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 50B50 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 50B50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
180
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 7.3
22
Fatigue Strength, MPa 64
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
590
Tensile Strength: Yield (Proof), MPa 86
370

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
1410
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 140
45
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.0
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1070
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
110
Resilience: Unit (Modulus of Resilience), kJ/m3 51
370
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 28
20
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 8.4
17

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
97.4 to 98.2
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0.75 to 1.0
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