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443.0 Aluminum vs. SAE-AISI 4161 Steel

443.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 4161 steel belongs to the iron alloys. There are 31 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 443.0 aluminum and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 41
200
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.6
20
Fatigue Strength, MPa 55
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 96
420
Tensile Strength: Ultimate (UTS), MPa 150
680
Tensile Strength: Yield (Proof), MPa 65
410

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 180
420
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
43
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1120
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 30
460
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 6.9
22

Alloy Composition

Aluminum (Al), % 90.7 to 95.5
0
Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0 to 0.25
0.7 to 0.9
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 0.8
96.7 to 97.6
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.5
0.75 to 1.0
Molybdenum (Mo), % 0
0.25 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 4.5 to 6.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.35
0