SAE-AISI M3 Class 2 Steel vs. A390.0 Aluminum
SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while A390.0 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 M3 class 2 steel and the bottom bar is A390.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
75 |
Poisson's Ratio | 0.29 | |
0.33 |
Shear Modulus, GPa | 77 | |
28 |
Tensile Strength: Ultimate (UTS), MPa | 770 to 2210 | |
190 to 290 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
640 |
Melting Completion (Liquidus), °C | 1620 | |
580 |
Melting Onset (Solidus), °C | 1570 | |
480 |
Specific Heat Capacity, J/kg-K | 440 | |
880 |
Thermal Conductivity, W/m-K | 26 | |
130 |
Thermal Expansion, µm/m-K | 12 | |
20 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 25 | |
11 |
Density, g/cm3 | 8.3 | |
2.7 |
Embodied Carbon, kg CO2/kg material | 12 | |
7.3 |
Embodied Energy, MJ/kg | 180 | |
140 |
Embodied Water, L/kg | 110 | |
950 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
15 |
Stiffness to Weight: Bending, points | 23 | |
52 |
Strength to Weight: Axial, points | 26 to 74 | |
19 to 30 |
Strength to Weight: Bending, points | 22 to 45 | |
27 to 36 |
Thermal Diffusivity, mm2/s | 7.2 | |
56 |
Thermal Shock Resistance, points | 24 to 69 | |
9.0 to 14 |
Alloy Composition
Aluminum (Al), % | 0 | |
75.3 to 79.6 |
Carbon (C), % | 1.2 to 1.3 | |
0 |
Chromium (Cr), % | 3.8 to 4.5 | |
0 |
Copper (Cu), % | 0 to 0.25 | |
4.0 to 5.0 |
Iron (Fe), % | 75.8 to 82.3 | |
0 to 0.5 |
Magnesium (Mg), % | 0 | |
0.45 to 0.65 |
Manganese (Mn), % | 0.15 to 0.4 | |
0 to 0.1 |
Molybdenum (Mo), % | 4.8 to 6.5 | |
0 |
Nickel (Ni), % | 0 to 0.3 | |
0 |
Phosphorus (P), % | 0 to 0.030 | |
0 |
Silicon (Si), % | 0.2 to 0.45 | |
16 to 18 |
Sulfur (S), % | 0 to 0.030 | |
0 |
Titanium (Ti), % | 0 | |
0 to 0.2 |
Tungsten (W), % | 5.0 to 6.8 | |
0 |
Vanadium (V), % | 2.8 to 3.8 | |
0 |
Zinc (Zn), % | 0 | |
0 to 0.1 |
Residuals, % | 0 | |
0 to 0.2 |