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324.0 Aluminum vs. SAE-AISI H41 Steel

324.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI H41 steel belongs to the iron 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 324.0 aluminum and the bottom bar is SAE-AISI H41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 210 to 310
710 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 500
270
Melting Completion (Liquidus), °C 610
1560
Melting Onset (Solidus), °C 550
1510
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 150
28
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 7.9
6.8
Embodied Energy, MJ/kg 150
97
Embodied Water, L/kg 1090
97

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 22 to 32
24 to 76
Strength to Weight: Bending, points 29 to 38
22 to 47
Thermal Diffusivity, mm2/s 62
7.7
Thermal Shock Resistance, points 9.7 to 14
20 to 64

Alloy Composition

Aluminum (Al), % 87.3 to 92.2
0
Carbon (C), % 0
0.6 to 0.75
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0.4 to 0.6
0
Iron (Fe), % 0 to 1.2
81.8 to 85
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.0 to 8.0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.3
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.2
0