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SAE-AISI M1 Steel vs. 3103 Aluminum

SAE-AISI M1 steel belongs to the iron alloys classification, while 3103 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 M1 steel and the bottom bar is 3103 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 730 to 2140
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1560
660
Melting Onset (Solidus), °C 1510
640
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 29
160
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 7.0
8.2
Embodied Energy, MJ/kg 99
150
Embodied Water, L/kg 98
1180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 25 to 73
10 to 22
Strength to Weight: Bending, points 22 to 45
18 to 30
Thermal Diffusivity, mm2/s 8.0
64
Thermal Shock Resistance, points 23 to 66
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 0
96.3 to 99.1
Carbon (C), % 0.78 to 0.88
0
Chromium (Cr), % 3.5 to 4.0
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 81 to 84.8
0 to 0.7
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0.15 to 0.4
0.9 to 1.5
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 0.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15

Comparable Variants