Titanium 6-7 vs. Grade 6 Titanium
Both titanium 6-7 and grade 6 titanium are titanium alloys. Both are furnished in the annealed condition. They have a moderately high 92% of their average alloy composition in common. There are 27 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 6-7 and the bottom bar is grade 6 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 100 |
| Elongation at Break, % | 11 | |
| 11 |
| Fatigue Strength, MPa | 530 | |
| 290 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Reduction in Area, % | 29 | |
| 27 |
| Shear Modulus, GPa | 45 | |
| 39 |
| Shear Strength, MPa | 610 | |
| 530 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 | |
| 890 |
| Tensile Strength: Yield (Proof), MPa | 900 | |
| 840 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 300 | |
| 310 |
| Melting Completion (Liquidus), °C | 1700 | |
| 1580 |
| Melting Onset (Solidus), °C | 1650 | |
| 1530 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 550 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 9.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 36 |
| Density, g/cm3 | 5.1 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 34 | |
| 30 |
| Embodied Energy, MJ/kg | 540 | |
| 480 |
| Embodied Water, L/kg | 190 | |
| 190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 92 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3460 | |
| 3390 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 32 | |
| 35 |
| Strength to Weight: Axial, points | 56 | |
| 55 |
| Strength to Weight: Bending, points | 44 | |
| 46 |
| Thermal Shock Resistance, points | 66 | |
| 65 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.5 | |
| 4.0 to 6.0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.080 |
| Hydrogen (H), % | 0 to 0.0090 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 6.5 to 7.5 | |
| 0 |
| Niobium (Nb), % | 6.5 to 7.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 to 0.2 |
| Tantalum (Ta), % | 0 to 0.5 | |
| 0 |
| Tin (Sn), % | 0 | |
| 2.0 to 3.0 |
| Titanium (Ti), % | 84.9 to 88 | |
| 89.8 to 94 |
| Residuals, % | 0 | |
| 0 to 0.4 |