Titanium Ti-6Al-6V-2Sn (Ti-6-6-2) Annealed
Subcategory: Alpha/Beta Titanium Alloy; Metal; Nonferrous Metal; Titanium Alloy
Close Analogs: 2 other heat treatments of this alloy are listed in MatWeb.
Key Words: Ti-662; Ti-6-6-2; UNS R56620
Component | Wt. % | | | Al | 6 | | Sn | 2 | | Ti | 86 | | V | 6 | |
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Material Notes: Information provided by Allvac and the references. Annealed 730ºC. Alpha-Beta Alloy Applications: Airframes, jet engines, rocket engine cases, nuclear reactor components, ordnance components.
Physical Properties | Metric | English | Comments |
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Density | 4.54 g/cc | 0.164 lb/in³ | |
Mechanical Properties |
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Hardness, Brinell | 351 | 351 | Estimated from Rockwell C. |
Hardness, Knoop | 382 | 382 | Estimated from Rockwell C. |
Hardness, Rockwell C | 38 | 38 | |
Hardness, Vickers | 367 | 367 | Estimated from Rockwell C. |
Tensile Strength, Ultimate | 1050 MPa | 152000 psi | |
Tensile Strength, Yield | 980 MPa | 142000 psi | |
Elongation at Break | 14 % | 14 % | |
Modulus of Elasticity | 110.3 GPa | 16000 ksi | |
Ultimate Bearing Strength | 2100 MPa | 305000 psi | e/D = 2 |
Bearing Yield Strength | 1350 MPa | 196000 psi | e/D = 2 |
Poisson's Ratio | 0.32 | 0.32 | |
Charpy Impact | 16 J | 11.8 ft-lb | V-notch |
Fatigue Strength | 140 MPa | 20300 psi | Notched 10,000,000 Cycles |
Fatigue Strength | 190 MPa | 27600 psi | 100,000 cycles. Kt (stress concentration factor) = 3 |
Fracture Toughness | 60 MPa-m½ | 54.6 ksi-in½ | KIC |
Shear Modulus | 45 GPa | 6530 ksi | Aged sample. |
Electrical Properties |
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Electrical Resistivity | 0.000157 ohm-cm | 0.000157 ohm-cm | |
Thermal Properties |
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CTE, linear 20°C | 9 µm/m-°C | 5 µin/in-°F | 20-100ºC |
CTE, linear 250°C | 9.4 µm/m-°C | 5.22 µin/in-°F | Average over the range 20-315ºC |
CTE, linear 500°C | 9.5 µm/m-°C | 5.28 µin/in-°F | Average over the range 20-540ºC |
Specific Heat Capacity | 0.67 J/g-°C | 0.16 BTU/lb-°F | |
Thermal Conductivity | 6.6 W/m-K | 45.8 BTU-in/hr-ft²-°F | |
Melting Point | 1627 - 1649 °C | 2960 - 3000 °F | |
Solidus | 1627 °C | 2960 °F | |
Liquidus | 1649 °C | 3000 °F | |
Maximum Service Temperature, Air | 315 °C | 599 °F | Subject to tensile embrittlement above 315ºC |
Beta Transus | 945 °C | 1730 °F | |
References for this datasheet.
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