Grade 9 Titanium vs. Titanium 6-2-4-2
Both grade 9 titanium and titanium 6-2-4-2 are titanium alloys. They have 89% of their average alloy composition in common.
For each property being compared, the top bar is grade 9 titanium and the bottom bar is titanium 6-2-4-2.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
110 |
Elongation at Break, % | 11 to 17 | |
8.6 |
Fatigue Strength, MPa | 330 to 480 | |
490 |
Poisson's Ratio | 0.32 | |
0.32 |
Reduction in Area, % | 28 | |
21 |
Shear Modulus, GPa | 40 | |
40 |
Shear Strength, MPa | 430 to 580 | |
560 |
Tensile Strength: Ultimate (UTS), MPa | 700 to 960 | |
950 |
Tensile Strength: Yield (Proof), MPa | 540 to 830 | |
880 |
Thermal Properties
Latent Heat of Fusion, J/g | 410 | |
400 |
Maximum Temperature: Mechanical, °C | 330 | |
300 |
Melting Completion (Liquidus), °C | 1640 | |
1590 |
Melting Onset (Solidus), °C | 1590 | |
1540 |
Specific Heat Capacity, J/kg-K | 550 | |
540 |
Thermal Conductivity, W/m-K | 8.1 | |
6.9 |
Thermal Expansion, µm/m-K | 9.1 | |
9.5 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 1.4 | |
0.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
1.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 37 | |
42 |
Density, g/cm3 | 4.5 | |
4.6 |
Embodied Carbon, kg CO2/kg material | 36 | |
32 |
Embodied Energy, MJ/kg | 580 | |
520 |
Embodied Water, L/kg | 150 | |
210 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 110 | |
79 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 1380 to 3220 | |
3640 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 35 | |
34 |
Strength to Weight: Axial, points | 43 to 60 | |
57 |
Strength to Weight: Bending, points | 39 to 48 | |
46 |
Thermal Diffusivity, mm2/s | 3.3 | |
2.8 |
Thermal Shock Resistance, points | 52 to 71 | |
67 |
Alloy Composition
Aluminum (Al), % | 2.5 to 3.5 | |
5.5 to 6.5 |
Carbon (C), % | 0 to 0.080 | |
0 to 0.050 |
Hydrogen (H), % | 0 to 0.015 | |
0 to 0.015 |
Iron (Fe), % | 0 to 0.25 | |
0 to 0.25 |
Molybdenum (Mo), % | 0 | |
1.8 to 2.2 |
Nitrogen (N), % | 0 to 0.030 | |
0 to 0.050 |
Oxygen (O), % | 0 to 0.15 | |
0 to 0.15 |
Silicon (Si), % | 0 | |
0.060 to 0.12 |
Tin (Sn), % | 0 | |
1.8 to 2.2 |
Titanium (Ti), % | 92.6 to 95.5 | |
83.7 to 87.2 |
Vanadium (V), % | 2.0 to 3.0 | |
0 |
Zirconium (Zr), % | 0 | |
3.6 to 4.4 |
Residuals, % | 0 | |
0 to 0.4 |