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SAE-AISI P5 Steel vs. 242.0 Aluminum

SAE-AISI P5 steel belongs to the iron alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 SAE-AISI P5 steel and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 370 to 1980
180 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 45
130 to 170
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
12
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 1.5
8.3
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 56
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 13 to 70
16 to 26
Strength to Weight: Bending, points 15 to 45
23 to 32
Thermal Diffusivity, mm2/s 12
50 to 62
Thermal Shock Resistance, points 12 to 65
8.0 to 13

Alloy Composition

Aluminum (Al), % 0
88.4 to 93.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 2.0 to 2.5
0 to 0.25
Copper (Cu), % 0 to 0.25
3.5 to 4.5
Iron (Fe), % 95.7 to 97.8
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.6
0 to 0.35
Nickel (Ni), % 0 to 0.35
1.7 to 2.3
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15

Comparable Variants