MakeItFrom.com
Menu (ESC)

SAE-AISI H23 Steel vs. 2218 Aluminum

SAE-AISI H23 steel belongs to the iron alloys classification, while 2218 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 H23 steel and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
330 to 430

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Melting Completion (Liquidus), °C 1680
640
Melting Onset (Solidus), °C 1630
510
Specific Heat Capacity, J/kg-K 440
870
Thermal Conductivity, W/m-K 20
140
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 34
11
Density, g/cm3 8.7
3.1
Embodied Carbon, kg CO2/kg material 6.9
8.2
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 120
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
45
Strength to Weight: Axial, points 24 to 49
30 to 39
Strength to Weight: Bending, points 21 to 34
34 to 41
Thermal Diffusivity, mm2/s 5.2
52
Thermal Shock Resistance, points 23 to 47
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Carbon (C), % 0.25 to 0.35
0
Chromium (Cr), % 11 to 12.8
0 to 0.1
Copper (Cu), % 0 to 0.25
3.5 to 4.5
Iron (Fe), % 71.3 to 76.7
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.15 to 0.4
0 to 0.2
Nickel (Ni), % 0 to 0.3
1.7 to 2.3
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.6
0 to 0.9
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15