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SAE-AISI T5 Steel vs. 238.0 Aluminum

SAE-AISI T5 steel belongs to the iron alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 21 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 SAE-AISI T5 steel and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
28
Tensile Strength: Ultimate (UTS), MPa 860 to 2140
210

Thermal Properties

Latent Heat of Fusion, J/g 250
430
Melting Completion (Liquidus), °C 1810
600
Melting Onset (Solidus), °C 1750
510
Specific Heat Capacity, J/kg-K 410
840
Thermal Conductivity, W/m-K 21
100
Thermal Expansion, µm/m-K 11
21

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 9.4
3.4
Embodied Carbon, kg CO2/kg material 11
7.4
Embodied Energy, MJ/kg 170
140
Embodied Water, L/kg 140
1040

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 21
42
Strength to Weight: Axial, points 25 to 63
17
Strength to Weight: Bending, points 21 to 39
23
Thermal Diffusivity, mm2/s 5.5
37
Thermal Shock Resistance, points 26 to 66
9.1

Alloy Composition

Aluminum (Al), % 0
81.9 to 84.9
Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 3.8 to 5.0
0
Cobalt (Co), % 7.0 to 9.5
0
Copper (Cu), % 0 to 0.25
9.5 to 10.5
Iron (Fe), % 60.6 to 68.3
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 0.5 to 1.3
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
3.6 to 4.4
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0
Zinc (Zn), % 0
1.0 to 1.5