ATI 425®-MIL Alloy
Changing the Game in Titanium

ATI 425®-MIL Alloy is a high-strength titanium alloy available in variety of forms, including ballistic-grade plate and cold-rolled coil or sheet.
The combination of strength and ductility found in ATI 425®-MIL Alloy make it useful for applications that require bending and forming. With ATI 425®-MIL Alloy, parts can be easily manufactured while maintaining superior strength compared to parts made with similarly formable low-alloy grades of titanium.
ATI 425®-MIL Product Highlights
Formability

ATI 425®-MIL Alloy can be both hot and cold worked. Its excellent ductility can permit forming at room temperature.
Weldability
ATI 425®-MIL Alloy is easily welded in the annealed condition using methods typically applied to Titanium, such as TIG, MIG, EB and plasma.
Corrosion Resistance
ATI 425®-MIL Alloy performs similarly to Ti6Al-4V (6-4 titanium) and Ti-3Al-2.5V (3-2.5 titanium) in marine environments.
Superplastic Formability
ATI 425®-MIL coil or sheet can be processed so that it has good superplastic formability at 1425°F – 1650°F (774°C – 899°C).
Specifications and Certifications
- MIL-CTL-46077G – Armor Plate, Titanium Alloy, Weldable
- Designated titanium grade 38 by ASTM and covered by ASTM specifications B265, B338, B348, B381 and B861
- Board Approved for use in the ASME Boiler and PV Code 650F, making ATI 425®-MIL Alloy the highest temperature ASME code approved titanium alloy in the B&PV.
Product Forms
ATI 425®-MIL Alloy is available in a variety of titanium product forms, including:
- Sheet and Plate
- Precision Rolled Strip® and foil
- Seamless tube
- Shapes and rectangles
- Ingot
- Castings and forgings
Potential Applications

- ATI 425® Alloy’s high ductility is beneficial when bending or cold drawing is required;
- ATI 425® Alloy is a candidate for large monolithic sections of armor plate that require forming during manufacturing;
- Good hot workability facilitates manufacturing of near-net shape forgings;
- Availability of cold-rolled titanium sheet and coil facilitates its use in roll forming and may allow structures to be designed with fewer joints and fasteners.
Technical Data Sheet
For more information about the game-changing benefits and mechanical properties of ATI 425®-MIL Alloy, download the ATI 425®-MIL Alloy Technical Data Sheet.
Contact Information
For Defense application inquiries, contact ATI425.Defense@ATImetals.com
For Aerospace application inquiries, contact ATI425.Aerospace@ATImetals.com
