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242.0 Aluminum vs. SAE-AISI T5 Steel

242.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI T5 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, 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 242.0 aluminum and the bottom bar is SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 180 to 290
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Melting Completion (Liquidus), °C 640
1810
Melting Onset (Solidus), °C 530
1750
Specific Heat Capacity, J/kg-K 870
410
Thermal Conductivity, W/m-K 130 to 170
21
Thermal Expansion, µm/m-K 22
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
60
Density, g/cm3 3.1
9.4
Embodied Carbon, kg CO2/kg material 8.3
11
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1130
140

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 45
21
Strength to Weight: Axial, points 16 to 26
25 to 63
Strength to Weight: Bending, points 23 to 32
21 to 39
Thermal Diffusivity, mm2/s 50 to 62
5.5
Thermal Shock Resistance, points 8.0 to 13
26 to 66

Alloy Composition

Aluminum (Al), % 88.4 to 93.6
0
Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0 to 0.25
3.8 to 5.0
Cobalt (Co), % 0
7.0 to 9.5
Copper (Cu), % 3.5 to 4.5
0 to 0.25
Iron (Fe), % 0 to 1.0
60.6 to 68.3
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.35
0.2 to 0.4
Molybdenum (Mo), % 0
0.5 to 1.3
Nickel (Ni), % 1.7 to 2.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.7
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0

Comparable Variants