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7049 Aluminum vs. SAE-AISI H24 Steel

7049 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 7049 aluminum and the bottom bar is SAE-AISI H24 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 510 to 530
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Melting Completion (Liquidus), °C 640
1750
Melting Onset (Solidus), °C 480
1700
Specific Heat Capacity, J/kg-K 860
420
Thermal Conductivity, W/m-K 130
27
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 3.1
9.1
Embodied Carbon, kg CO2/kg material 8.1
6.1
Embodied Energy, MJ/kg 140
93
Embodied Water, L/kg 1110
78

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 45
22
Strength to Weight: Axial, points 46 to 47
22 to 61
Strength to Weight: Bending, points 46 to 47
20 to 39
Thermal Diffusivity, mm2/s 51
6.9
Thermal Shock Resistance, points 22 to 23
22 to 61

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0.42 to 0.53
Chromium (Cr), % 0.1 to 0.22
2.5 to 3.5
Copper (Cu), % 1.2 to 1.9
0 to 0.25
Iron (Fe), % 0 to 0.35
78 to 82.4
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0