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SAE-AISI H24 Steel vs. 5456 Aluminum

SAE-AISI H24 steel belongs to the iron alloys classification, while 5456 aluminum belongs to the aluminum 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 SAE-AISI H24 steel and the bottom bar is 5456 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 240
390
Melting Completion (Liquidus), °C 1750
640
Melting Onset (Solidus), °C 1700
570
Specific Heat Capacity, J/kg-K 420
900
Thermal Conductivity, W/m-K 27
120
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 9.1
2.7
Embodied Carbon, kg CO2/kg material 6.1
9.0
Embodied Energy, MJ/kg 93
150
Embodied Water, L/kg 78
1170

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
50
Strength to Weight: Axial, points 22 to 61
33 to 35
Strength to Weight: Bending, points 20 to 39
38 to 40
Thermal Diffusivity, mm2/s 6.9
48
Thermal Shock Resistance, points 22 to 61
14 to 15

Alloy Composition

Aluminum (Al), % 0
92 to 94.8
Carbon (C), % 0.42 to 0.53
0
Chromium (Cr), % 2.5 to 3.5
0.050 to 0.2
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 78 to 82.4
0 to 0.4
Magnesium (Mg), % 0
4.7 to 5.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
0 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants