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SAE-AISI M6 Steel vs. EN AC-43300 Aluminum

SAE-AISI M6 steel belongs to the iron alloys classification, while EN AC-43300 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 EN AC-43300 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 840 to 2210
280 to 290

Thermal Properties

Latent Heat of Fusion, J/g 260
540
Melting Completion (Liquidus), °C 1560
600
Melting Onset (Solidus), °C 1510
590
Specific Heat Capacity, J/kg-K 440
910
Thermal Conductivity, W/m-K 17
140
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 39
9.5
Density, g/cm3 8.4
2.5
Embodied Carbon, kg CO2/kg material 8.0
7.9
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 160
1080

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
54
Strength to Weight: Axial, points 28 to 73
31 to 32
Strength to Weight: Bending, points 24 to 45
37 to 38
Thermal Diffusivity, mm2/s 4.7
59
Thermal Shock Resistance, points 26 to 68
13 to 14

Alloy Composition

Aluminum (Al), % 0
88.9 to 90.8
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 0.050
Iron (Fe), % 68.8 to 74.6
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
9.0 to 10
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1