April 8, 2013

New Alcoa Nautic-Al Temper to Improve Marine Corrosion Performance

WASHINGTON, D.C. - Alcoa has developed a new temper for thermally stable marine sheet and plate that meets an accelerated corrosion test specified by the U.S. Navy and the commercial marine industry.  The marine plate product can resist sensitization and contributes to Navy ships meeting their planned service life.


The process used to produce the new temper – H128 – is the result of a two-year development effort between Alcoa Technical Center and Alcoa Transportation and Industrial Products facilities in Davenport, Iowa, and Fusina, Italy.  Both plants are capable of producing the new temper in a wide range of thicknesses and widths needed by ship builders, and thorough testing led to its registration with the U.S. Aluminum Association late last year.


“Alcoa has worked extensively with the Navy to fully understand their challenges and develop solutions both to repair ships and ensure newer, aluminum intensive ships can benefit from the introduction of thermally stable plate,” said Dan Murphy, senior VP of business development for Alcoa Defense.   “It underscores our commitment to stand with the Navy and naval shipbuilders as they make material selections for a wide range of aluminum intensive ships.”


This improved product, the latest addition to Alcoa’s existing family of Nautic-Al marine products, will also be introduced to the commercial shipbuilding markets.

About Alcoa
Alcoa is the world’s leading producer of primary and fabricated aluminum, as well as the world’s largest miner of bauxite and refiner of alumina. In addition to inventing the modern-day aluminum industry, Alcoa innovation has been behind major milestones in the aerospace, automotive, packaging, building and construction, commercial transportation, consumer electronics and industrial markets over the past 125 years. Among the solutions Alcoa markets are flat-rolled products, hard alloy extrusions, and forgings, as well as Alcoa® wheels, fastening systems, precision and investment castings, and building systems in addition to its expertise in other light metals such as titanium and nickel-based super alloys. Sustainability is an integral part of Alcoa’s operating practices and the product design and engineering it provides to customers. Alcoa has been a member of the Dow Jones Sustainability Index for 11 consecutive years and approximately 75 percent of all of the aluminum ever produced since 1888 is still in active use today. Alcoa employs approximately 61,000 people in 30 countries across the world. For more information, visit www.alcoa.com and follow @Alcoa on Twitter at twitter.com/Alcoa and follow Alcoa on Facebook at www.facebook.com/Alcoa.