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AISI W5 Steel vs. EN AC-51100 Aluminum

AISI W5 steel belongs to the iron alloys classification, while EN AC-51100 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 AISI W5 steel and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Tensile Strength: Ultimate (UTS), MPa 600 to 2360
160

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 45
130
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.6
8.7
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 48
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 21 to 84
17
Strength to Weight: Bending, points 20 to 50
25
Thermal Diffusivity, mm2/s 12
53
Thermal Shock Resistance, points 20 to 78
7.3

Alloy Composition

Aluminum (Al), % 0
94.5 to 97.5
Carbon (C), % 1.1 to 1.2
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 96.6 to 98.4
0 to 0.55
Magnesium (Mg), % 0
2.5 to 3.5
Manganese (Mn), % 0.1 to 0.4
0 to 0.45
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.1 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15