ATI 425 Titanium Alloy

Last updated
Allegheny Technologies Incorporated (ATI)
Industry Aerospace
Defense
Industrial
Medical
Recreational
ProductsATI 425 Titanium Alloy
Website atimetals.com

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

Contents

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]

Composition

Al Va Fe O C N H Ti Remainder EachRemainder Total
Min3.52.01.20.2------Balance----
Max4.53.01.80.300.080.030.015Balance0.100.30
See [3]

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: [4]

The ATI 425 Alloy was used on the Phoenix Mars Lander, which was launched on August 4, 2007. [5]

Availability

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

Cold-rolled coilBarHigh-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. 1 2 3 4 "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 425® Titanium Alloy, Grade 38, Technical Data Sheet" (PDF). www.atimetals.com. Allegheny Technologies Inc. Archived from the original (PDF) on 14 June 2013. Retrieved 16 August 2025.
  4. "ATI 435 Alloy Applications". ATI Metals. Archived from the original on 2012-07-20. Retrieved 2012-08-03.
  5. "ATI 425(R) Titanium Alloy Key Material for Mars Lander Analytical Componentry. | Science & Technology > Astronomy & Space from". AllBusiness.com. Retrieved 2010-06-30.