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384.0 Aluminum vs. SAE-AISI H24 Steel

384.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI H24 steel belongs to the iron alloys. There are 21 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 384.0 aluminum and the bottom bar is SAE-AISI H24 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 330
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 550
240
Melting Completion (Liquidus), °C 580
1750
Melting Onset (Solidus), °C 530
1700
Specific Heat Capacity, J/kg-K 870
420
Thermal Conductivity, W/m-K 96
27
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
37
Density, g/cm3 2.9
9.1
Embodied Carbon, kg CO2/kg material 7.4
6.1
Embodied Energy, MJ/kg 140
93
Embodied Water, L/kg 1010
78

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 49
22
Strength to Weight: Axial, points 32
22 to 61
Strength to Weight: Bending, points 37
20 to 39
Thermal Diffusivity, mm2/s 39
6.9
Thermal Shock Resistance, points 15
22 to 61

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
0
Carbon (C), % 0
0.42 to 0.53
Chromium (Cr), % 0
2.5 to 3.5
Copper (Cu), % 3.0 to 4.5
0 to 0.25
Iron (Fe), % 0 to 1.3
78 to 82.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Nickel (Ni), % 0 to 0.5
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 12
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0