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B535.0 Aluminum vs. SAE-AISI M50 Steel

B535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI M50 steel belongs to the iron alloys. There are 23 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 B535.0 aluminum and the bottom bar is SAE-AISI M50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 66
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
75
Tensile Strength: Ultimate (UTS), MPa 260
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Melting Completion (Liquidus), °C 630
1480
Melting Onset (Solidus), °C 550
1440
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 96
35
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 82
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 9.4
5.1
Embodied Energy, MJ/kg 160
74
Embodied Water, L/kg 1180
83

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 28
26 to 80
Strength to Weight: Bending, points 35
23 to 49
Thermal Diffusivity, mm2/s 40
9.7
Thermal Shock Resistance, points 11
21 to 66

Alloy Composition

Aluminum (Al), % 91.7 to 93.4
0
Carbon (C), % 0
0.78 to 0.88
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.15
87 to 90.4
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0 to 0.050
0.15 to 0.45
Molybdenum (Mo), % 0
3.9 to 4.8
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.15
0.2 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.1 to 0.25
0
Vanadium (V), % 0
0.8 to 1.3
Residuals, % 0 to 0.15
0