Grade 11 Titanium vs. SAE-AISI M3 Class 1 Steel
Grade 11 titanium belongs to the titanium alloys classification, while SAE-AISI M3 class 1 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is grade 11 titanium and the bottom bar is SAE-AISI M3 class 1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 38 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 310 | |
| 770 to 2150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 260 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1610 |
| Melting Onset (Solidus), °C | 1610 | |
| 1570 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 440 |
| Thermal Conductivity, W/m-K | 22 | |
| 26 |
| Thermal Expansion, µm/m-K | 9.2 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 47 | |
| 10 |
| Embodied Energy, MJ/kg | 800 | |
| 150 |
| Embodied Water, L/kg | 470 | |
| 100 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 23 |
| Strength to Weight: Axial, points | 19 | |
| 26 to 72 |
| Strength to Weight: Bending, points | 22 | |
| 22 to 44 |
| Thermal Diffusivity, mm2/s | 8.9 | |
| 7.2 |
| Thermal Shock Resistance, points | 22 | |
| 24 to 67 |
Alloy Composition
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| Carbon (C), % | 0 to 0.080 | |
| 1.0 to 1.1 |
| Chromium (Cr), % | 0 | |
| 3.8 to 4.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 76.9 to 82.9 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Molybdenum (Mo), % | 0 | |
| 4.8 to 6.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.18 | |
| 0 |
| Palladium (Pd), % | 0.12 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.2 to 0.45 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 98.8 to 99.88 | |
| 0 |
| Tungsten (W), % | 0 | |
| 5.0 to 6.8 |
| Vanadium (V), % | 0 | |
| 2.3 to 2.8 |
| Residuals, % | 0 to 0.4 | |
| 0 |