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SAE-AISI H41 Steel vs. 2117 Aluminum

SAE-AISI H41 steel belongs to the iron alloys classification, while 2117 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 H41 steel and the bottom bar is 2117 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 710 to 2210
300

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1560
650
Melting Onset (Solidus), °C 1510
550
Specific Heat Capacity, J/kg-K 450
880
Thermal Conductivity, W/m-K 28
150
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 6.8
8.2
Embodied Energy, MJ/kg 97
150
Embodied Water, L/kg 97
1150

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 24 to 76
28
Strength to Weight: Bending, points 22 to 47
33
Thermal Diffusivity, mm2/s 7.7
59
Thermal Shock Resistance, points 20 to 64
12

Alloy Composition

Aluminum (Al), % 0
91 to 97.6
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 3.5 to 4.0
0 to 0.1
Copper (Cu), % 0
2.2 to 4.5
Iron (Fe), % 81.8 to 85
0 to 0.7
Magnesium (Mg), % 0
0.2 to 1.0
Manganese (Mn), % 0.15 to 0.4
0.4 to 1.0
Molybdenum (Mo), % 8.2 to 9.2
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.3
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15