ATI 425 Titanium Alloy

The ATI 425 Titanium Alloy is a titanium alloy developed and produced by Allegheny Technologies Incorporated (ATI).

Allegheny Technologies Incorporated (ATI)
IndustryAerospace
Defense
Industrial
Medical
Recreational
ProductsATI 425 Titanium Alloy
Websiteatimetals.com

It is produced in multiple product forms, including sheet, coil, strip, Precision Rolled Strip and foil, plate, seamless tube, shapes and rectangles, as well as castings.[1]

The ATI 425 Titanium Alloy was debuted on June 14, 2010 at the land and air-land defense and security exhibition Eurosatory in Paris, France.[2]

Applications

Markets for ATI 425 Alloy include aerospace, defense, industrial, medical and recreation. The corrosion resistance of the ATI 425 Alloy to saltwater environments also makes it a candidate for marine-related applications.[1]

Specifically, the ATI 425 Alloy is designed for:[3]

  • Wing sheets
  • Defense rotor aircraft
  • Ground vehicles
  • Soldier support and protection
  • Weapons systems
  • Naval systems
  • Boiler/pressure vessel applications
  • Additional naval applications, including shiphold structural materials; armor; doors, hatches and bulkheads; and piping

The ATI 425 Alloy was used on the Phoenix Mars Lander, which was launched on August 4, 2007.[4]

Availability

The ATI 425 Alloy currently is available in the following forms:[1]

Cold-rolled coil Bar High-performance plate
36" width
1-meter width
48" width		 1.0″, 2.0″, 3.25″ round bar
0.25″, 0.344″, 0.5″ round coil
1.44″ × 3.0″ rectangle
U-channel shape		 Thicknesses ranging
from 0.25 to 2.1 inches

Certifications

The ATI 425 Alloy sheet is processed to the AMS 6946 specification.

The ASME Board on Pressure Technology Codes and Standards (BPTCS) has approved ATI 425 Alloy for use in Section VIII, Div. 1 construction up to 600 °F (316 °C).

The ATI 425 Alloy has been assigned a titanium grade 38 by ASTM International. It can be welded using ERTi-38 weld wire, which is produced in accordance with AWS 5.16/A5.16M.[1]

Notes
  1. "ATI 425 Titanium Alloy (Grade 38)". ATI Metals. Archived from the original on 24 July 2012. Retrieved 3 August 2012.
  2. "ATI Defense Unveils ATI 425Â-MIL Alloy at Eurosatory 2010". StreetInsider.com. 2010-06-14. Retrieved 2010-06-30.
  3. "ATI 435 Alloy Applications". ATI Metals. Archived from the original on 2012-07-20. Retrieved 2012-08-03.
  4. "ATI 425(R) Titanium Alloy Key Material for Mars Lander Analytical Componentry. | Science & Technology > Astronomy & Space from". AllBusiness.com. Retrieved 2010-06-30.
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