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B443.0 Aluminum vs. AISI W1 Steel

B443.0 aluminum belongs to the aluminum alloys classification, while AISI W1 steel belongs to the iron 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 B443.0 aluminum and the bottom bar is AISI W1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Tensile Strength: Ultimate (UTS), MPa 150
590 to 2320

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
48
Thermal Expansion, µm/m-K 22
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1130
47

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 15
21 to 83
Strength to Weight: Bending, points 23
20 to 50
Thermal Diffusivity, mm2/s 61
13
Thermal Shock Resistance, points 6.8
22 to 85

Alloy Composition

Aluminum (Al), % 91.9 to 95.5
0
Carbon (C), % 0
0.7 to 1.5
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.15
0 to 0.2
Iron (Fe), % 0 to 0.8
96.4 to 98.9
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
0.35 to 0.73
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 4.5 to 6.0
0.1 to 0.4
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0