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SAE-AISI M6 Steel vs. A535.0 Aluminum

SAE-AISI M6 steel belongs to the iron alloys classification, while A535.0 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 M6 steel and the bottom bar is A535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
25
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
250

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Melting Completion (Liquidus), °C 1560
620
Melting Onset (Solidus), °C 1510
550
Specific Heat Capacity, J/kg-K 440
910
Thermal Conductivity, W/m-K 17
100
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 39
9.5
Density, g/cm3 8.4
2.6
Embodied Carbon, kg CO2/kg material 8.0
9.3
Embodied Energy, MJ/kg 120
160
Embodied Water, L/kg 160
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
51
Strength to Weight: Axial, points 28 to 73
26
Strength to Weight: Bending, points 24 to 45
33
Thermal Diffusivity, mm2/s 4.7
42
Thermal Shock Resistance, points 26 to 68
11

Alloy Composition

Aluminum (Al), % 0
91.4 to 93.4
Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 68.8 to 74.6
0 to 0.2
Magnesium (Mg), % 0
6.5 to 7.5
Manganese (Mn), % 0.15 to 0.4
0.1 to 0.25
Molybdenum (Mo), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0
Residuals, % 0
0 to 0.15