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B535.0 Aluminum vs. SAE-AISI M33 Steel

B535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI M33 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 B535.0 aluminum and the bottom bar is SAE-AISI M33 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 66
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
78
Tensile Strength: Ultimate (UTS), MPa 260
810 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Melting Completion (Liquidus), °C 630
1550
Melting Onset (Solidus), °C 550
1500
Specific Heat Capacity, J/kg-K 910
440
Thermal Conductivity, W/m-K 96
20
Thermal Expansion, µm/m-K 25
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.6
8.2
Embodied Carbon, kg CO2/kg material 9.4
7.7
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 1180
150

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 28
27 to 75
Strength to Weight: Bending, points 35
24 to 46
Thermal Diffusivity, mm2/s 40
5.5
Thermal Shock Resistance, points 11
25 to 68

Alloy Composition

Aluminum (Al), % 91.7 to 93.4
0
Carbon (C), % 0
0.85 to 0.92
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.15
71.4 to 76.3
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0 to 0.050
0.15 to 0.4
Molybdenum (Mo), % 0
9.0 to 10
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.15
0.15 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.1 to 0.25
0
Tungsten (W), % 0
1.3 to 2.1
Vanadium (V), % 0
1.0 to 1.4
Residuals, % 0 to 0.15
0