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SAE-AISI H42 Steel vs. 224.0 Aluminum

SAE-AISI H42 steel belongs to the iron alloys classification, while 224.0 aluminum belongs to the aluminum 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 SAE-AISI H42 steel and the bottom bar is 224.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
380 to 420

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Melting Completion (Liquidus), °C 1620
650
Melting Onset (Solidus), °C 1570
550
Specific Heat Capacity, J/kg-K 440
870
Thermal Conductivity, W/m-K 24
120
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.4
3.0
Embodied Carbon, kg CO2/kg material 8.8
8.3
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 98
1150

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 23 to 65
35 to 38
Strength to Weight: Bending, points 21 to 42
38 to 41
Thermal Diffusivity, mm2/s 6.5
47
Thermal Shock Resistance, points 20 to 57
17 to 18

Alloy Composition

Aluminum (Al), % 0
93 to 95.2
Carbon (C), % 0.55 to 0.7
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
4.5 to 5.5
Iron (Fe), % 79.3 to 83.8
0 to 0.1
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.5
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0
0 to 0.060
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.35
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0.050 to 0.15
Zirconium (Zr), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.1