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SAE-AISI M1 Steel vs. 201.0 Aluminum

SAE-AISI M1 steel belongs to the iron alloys classification, while 201.0 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, 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 M1 steel and the bottom bar is 201.0 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 730 to 2140
370 to 470

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Melting Completion (Liquidus), °C 1560
650
Melting Onset (Solidus), °C 1510
570
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 29
120
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 18
38
Density, g/cm3 8.1
3.1
Embodied Carbon, kg CO2/kg material 7.0
8.7
Embodied Energy, MJ/kg 99
160

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 25 to 73
33 to 42
Strength to Weight: Bending, points 22 to 45
37 to 44
Thermal Diffusivity, mm2/s 8.0
45
Thermal Shock Resistance, points 23 to 66
19 to 25

Alloy Composition

Aluminum (Al), % 0
92.1 to 95.1
Carbon (C), % 0.78 to 0.88
0
Chromium (Cr), % 3.5 to 4.0
0
Copper (Cu), % 0 to 0.25
4.0 to 5.2
Iron (Fe), % 81 to 84.8
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.55
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.5
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.5
0 to 0.1
Silver (Ag), % 0
0.4 to 1.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.15 to 0.35
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0
Residuals, % 0
0 to 0.1