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SAE-AISI H24 Steel vs. 851.0 Aluminum

SAE-AISI H24 steel belongs to the iron alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (6, 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 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Melting Completion (Liquidus), °C 1750
630
Melting Onset (Solidus), °C 1700
360
Specific Heat Capacity, J/kg-K 420
850
Thermal Conductivity, W/m-K 27
180
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14
Density, g/cm3 9.1
3.1
Embodied Carbon, kg CO2/kg material 6.1
8.4
Embodied Energy, MJ/kg 93
160
Embodied Water, L/kg 78
1140

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
45
Strength to Weight: Axial, points 22 to 61
12 to 13
Strength to Weight: Bending, points 20 to 39
19 to 20
Thermal Diffusivity, mm2/s 6.9
69
Thermal Shock Resistance, points 22 to 61
6.1 to 6.3

Alloy Composition

Aluminum (Al), % 0
86.6 to 91.5
Carbon (C), % 0.42 to 0.53
0
Chromium (Cr), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0.7 to 1.3
Iron (Fe), % 78 to 82.4
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Nickel (Ni), % 0 to 0.3
0.3 to 0.7
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0
Residuals, % 0
0 to 0.3