News 16. 04. 24:SML Ti Tube Grade 5
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PDF downloads» Titanium 6-2-4-2
Titanex supplies this MEDIUM-STRENGTH, ELEVATED TEMPERATURE ALLOY as a wire with max. 12 mm diameter. Ti 6Al 2Sn 4Zr 0.08Si has an outstanding combination of tensile strength, creep strength, toughness, and high-temperature stability for long term application at temperatures up to 1000°F (538°C). Its primary application is gas turbine compressor components such as blades, discs, and impellers. The 6-2-4-2 is also used in sheet metal form for engine afterburner structure and for various hot airframe skin applications. Forging and machining characteristics of 6-2-4-2 are very similar to Grade 5 (Ti6Al4V).
Composition
Physical Data
Mechanical Data
Fabrication Information
» Composition
| C | < 0.08 % |
| Fe | < 0.25 % |
| N2 | < 0.05 % |
| O2 | < 0.25 % |
| H2 | < 0.01-0.0125 % |
| Al | 5.5 - 6.5 % |
| Zn | 1.8-2.2 % |
| Zr | 3.6-4.4 % |
| Mo | 1.8-2.2 % |
| Si | 0.06-0.13 % |
| Ti = | Rem |
» Physical Data
| Minimum | Typical | |
| Density g/cm3 (lb/cu.in) | 4.54(0.164) | |
| Melting Range °C+/-15°C (°F) | 1705(3100) | |
| Specific Heat J/g/°C | 0.46 | |
| Volume Electrical Resistivity µohm.cm (µohm.in) | 72-74(18.5-19) | |
| Thermal Conductivity W/mK | 6.92 | |
| *Mean Thermal Exp. Coeff. 0-100°C/°C | 8.6 x 10 -6 | |
| *Mean Thermal Exp. Coeff. 0-300°C/°C | 7.7 x 10 -6 | |
| Beta Transus °C+/-15°C(°F) | 955 (1825) |
» Mechanical Data
| Minimum | Typical | |
| Tensile Strength MPa(ksi) | 1004 (144) | 1045 (146) |
| 0.2% Proof Stress MPa(ksi) | 895 (130) | 955 (139) |
| Elongation over 2 Inches % | 19 | 18 |
| Reduction in Area % | 42 | 40 |
| Elastic Modulus GPa(Msi) | 114 (16.5) | |
| @ 480 °C | Minimum | Typical |
| Tensile Strength MPa(ksi) | 716 (104) | 735 (107) |
| 0.2% Proof Stress MPa(ksi) | 545 (79) | 565 (82) |
| Elongation over 2 Inches % | 26 | 25 |
| Reduction in Area % | 63 | 67 |
» HEAT TREATMENT
| Treatment | Temperature °F (°C) |
Time Hours | Cooling Method |
| Duplex Anneal(DA) | |||
| 1st Stage | 1650 (900) | --- | Air Cool |
| 2nd Stage | 1450 (785) | --- | Air Cool |
| Triplex Anneal(TA) | |||
| 1st Stage | 1650 (900) | 2 | Air Cool |
| 2nd Stage | 1450 (785) | --- | Air Cool |
| 3rd Stage | 1100 (595) | 2 | Air Cool |
