Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2, UNS R54620) is a near-alpha titanium alloy that combines tensile strength, creep strength and toughness, with long-term stability at temperatures up to 425 °C (800 °F). Silicon up to 0.1% is frequently added to improve creep resistance. It is produced by vacuum arc, electron-beam or plasma-arc melting followed by vacuum arc remelting, and is used in gas-turbine compressor blades, discs and impellers, afterburner structures and airframe skin.
Table of Contents
What is Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2) Sheets?
Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2) is a near-alpha, high-strength titanium alloy (UNS R54620). Aurico Alloys LLP supplies it as sheets from Mumbai, India, cut to size and certified to EN 10204 3.1. Material is supplied against the AMS / ASTM specification for the form ordered.
Size Range & Supply
| Grade / Designation | Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2) |
|---|---|
| UNS Number | R54620 |
| Product Form | Sheets |
| Size Range | Made to order; quoted against the mill programme in force at the time of enquiry. |
| Condition / Finish | Annealed; pickled or ground to requirement. |
| Certification | EN 10204 3.1 mill test certificate. |
| Packaging | Wooden cases or as required for export. |
The applicable specification for this form is shown in the Equivalent Grades & Standards table below.
Equivalent Grades & Designations
| Property | Value |
|---|---|
| UNS number | R54620 |
| Density | 4.54 g/cm3 |
| Melting range | 1588-1716 °C |
| Beta transus | 1825 °F (± 25 °F) |
| Plate, sheet and strip specification | Mill specification |
Identifiers and physical constants for Titanium Ti-6-2-4-2. A dash means no such designation is published for this grade.
Chemical Composition of Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2) Sheets
| Element | Min (%) | Max (%) |
|---|---|---|
| Aluminium (Al) | 5.50 | 6.50 |
| Tin (Sn) | 1.80 | 2.20 |
| Molybdenum (Mo) | 1.80 | 2.20 |
| Zirconium (Zr) | 3.60 | 4.40 |
| Iron (Fe) | — | 0.25 |
| Oxygen (O) | — | 0.15 |
| Nitrogen (N) | — | 0.05 |
| Carbon (C) | — | 0.05 |
| Hydrogen (H) | — | 0.0125 |
| Silicon (Si) | — | 0.1 |
| Titanium (Ti) | — | Balance |
Composition limits for Titanium Ti-6-2-4-2. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Applications & Uses of Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2)
| Industry / Application | Use |
|---|---|
| Gas turbine engines | Compressor blades, discs and impellers, where creep strength and long-term stability to 425 °C are needed. |
| Afterburner structures | Retains strength and stability at elevated service temperatures. |
| Airframe | Skin and structural sections needing a high strength-to-weight ratio at temperature. |
Frequently Asked Questions
Global Export
We ship Ti-6Al-2Sn-4Zr-2Mo (Ti-6-2-4-2) Sheets worldwide from Mumbai. See every destination on our export markets page.
Supply Across India
We deliver across India from our Mumbai stockyard. See every city on our supply locations page.