Titanium 6-6-2 vs. SAE-AISI D2 Steel
Titanium 6-6-2 belongs to the titanium alloys classification, while SAE-AISI D2 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is titanium 6-6-2 and the bottom bar is SAE-AISI D2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 6.7 to 9.0 | |
| 5.0 to 16 |
| Fatigue Strength, MPa | 590 to 670 | |
| 310 to 860 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 44 | |
| 75 |
| Shear Strength, MPa | 670 to 800 | |
| 460 to 1160 |
| Tensile Strength: Ultimate (UTS), MPa | 1140 to 1370 | |
| 760 to 2000 |
| Tensile Strength: Yield (Proof), MPa | 1040 to 1230 | |
| 470 to 1510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 270 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1440 |
| Melting Onset (Solidus), °C | 1560 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 480 |
| Thermal Conductivity, W/m-K | 5.5 | |
| 31 |
| Thermal Expansion, µm/m-K | 9.4 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.1 | |
| 4.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 5.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 8.0 |
| Density, g/cm3 | 4.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 29 | |
| 3.4 |
| Embodied Energy, MJ/kg | 470 | |
| 50 |
| Embodied Water, L/kg | 200 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 99 | |
| 92 to 100 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 25 |
| Strength to Weight: Axial, points | 66 to 79 | |
| 27 to 72 |
| Strength to Weight: Bending, points | 50 to 57 | |
| 24 to 46 |
| Thermal Diffusivity, mm2/s | 2.1 | |
| 8.3 |
| Thermal Shock Resistance, points | 75 to 90 | |
| 25 to 67 |
Alloy Composition
| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 1.4 to 1.6 |
| Chromium (Cr), % | 0 | |
| 11 to 13 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 0 to 0.25 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 81.3 to 86.9 |
| Manganese (Mn), % | 0 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 5.0 to 6.0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.8 to 87.8 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0 to 1.1 |
| Residuals, % | 0 to 0.4 | |
| 0 |