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SAE-AISI M41 Steel vs. A206.0 Aluminum

SAE-AISI M41 steel belongs to the iron alloys classification, while A206.0 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 M41 steel and the bottom bar is A206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
390 to 440

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Melting Completion (Liquidus), °C 1600
670
Melting Onset (Solidus), °C 1550
550
Specific Heat Capacity, J/kg-K 440
880
Thermal Conductivity, W/m-K 22
130
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 33
11
Density, g/cm3 8.4
3.0
Embodied Carbon, kg CO2/kg material 9.1
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 120
1150

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
46
Strength to Weight: Axial, points 26 to 76
36 to 41
Strength to Weight: Bending, points 23 to 46
39 to 43
Thermal Diffusivity, mm2/s 6.0
48
Thermal Shock Resistance, points 25 to 71
17 to 19

Alloy Composition

Aluminum (Al), % 0
93.9 to 95.7
Carbon (C), % 1.1 to 1.2
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
4.2 to 5.0
Iron (Fe), % 73.4 to 78.9
0 to 0.1
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0.2 to 0.6
0 to 0.2
Molybdenum (Mo), % 3.3 to 4.3
0
Nickel (Ni), % 0 to 0.3
0 to 0.050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.5
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15