Our History

ATI’s earliest ancestor, Pompton Furnace, first poured iron into its furnace in the 1750s in New Jersey; Pompton Furnace also manufactured the hand-forged chain links to block the Hudson River during the Revolutionary War.

1900s

In 1901, Allegheny Steel & Iron, an ATI ancestor, was incorporated and headquartered in Western Pennsylvania.

1910s

In 1910, an ATI ancestor was the first company to use the electric furnace in manufacturing alloys.

1920s

In the 1920s ATI (Allegheny Steel Company) first commercialized stainless in the United States. We received our first patent award for stainless in 1924.
In 1927, our stainless was used to build the Chrysler building, an icon of the New York City skyline.
In 1929, our stainless was used for trim on the Ford Model A automobile – ATI’s specialty alloys are still featured on many automobiles.

1930s

In 1938, two great Western Pennsylvania companies combined to form Allegheny Ludlum (Steel Corporation) - Allegheny Steel Company and Ludlum Steel Company.

1940s

ATI pioneered the development of specialty alloys that are critical for use in jet engine applications. Our alloys were used for the jet engines of America’s first jet fighters in the early 1940s.
ATI pioneered the development of advanced alloys for use in large natural gas turbines. Our specialty metals were used in late 1940s for the United States’ first commercial gas turbine, built at the Belle Isle station for the Oklahoma Gas & Electric Company.
ATI, an innovator in the development of high performance titanium alloys, has been a leader in developing technologies for titanium for the aerospace and defense market since the late 1940s.

1950s

In 1955, ATI first commercialized superalloys melted by a consumable electrode vacuum remelt process.
In the mid-1950s, ATI’s alloys were used in the Boeing 707, the United States' first commercial jet airplane.
In 1956, ATI invests in major expansion of its research facility in Western Pennsylvania.
In 1957s, ATI first commercialized vacuum induction melting, a key technology for manufacturing aerospace quality nickel-base alloys.
ATI is a pioneer in the specialty metals necessary for the nuclear electrical power generation industry. Our zirconium products (ATI was the first industrialized producer of zirconium) were used in the late 1950s for the nation’s first full-scale commercial power plant, built in Shippingport, PA.

1960s

In 1960, Teledyne, Inc was founded. In only six years after its inception, Teledyne made its way to #293 on the Fortune 500 list.
In the early 1960s ATI developed Vasco Supreme, the first super-hard, high-speed steel that revolutionized many industrialized metalworking processes.
ATI’s titanium and nickel-based superalloy, Rene® 41, were used in 1965 for the structure and reentry heat shield for the Gemini 4 spacecraft, whose flight included the first American spacewalk.

1970s

In the 1970s, ATI developed the manufacturing process for 3-2.5 Titanium alloy, used for aircraft hydraulic tubing. ATI’s titanium was used for the hydraulic control system of the Concorde supersonic transport (SST).
In the early 1970s our zirconium was used in the first large high-pressure, high-speed centrifugal pump for an acetic acid facility for the chemical processing industry.

1980s

In 1984, ATI’s AL 29-4C® alloy becomes patented; this alloy is used in high-efficiency gas furnaces.
In the late 1980s, ATI’s AL-6XN® alloy was used for the first high-strength, durable firewalls for an offshore oil facility in the North Sea.

1990s

In 1996, two-industry leading companies (Allegheny Ludlum and Teledyne, Inc.) combine to form Allegheny Teledyne Incorporated.
In 1999, Allegheny Technologies Incorporated (ATI) is created when Allegheny Teledyne completes a major transformation and reconfiguration of the company.

2000s

In 2006, our proprietary ATI 2003™ Lean Duplex Alloy was in a subsea flow line system for the Kikeh Field Development Project, offshore Sabah, East Malaysia.
In 2007, ATI 2003™ Lean Duplex Alloy was used for the largest stainless roof in the world. The roof is for the New Doha International Airport in Qatar.
In early 2008 our proprietary ATI 425® Titanium alloy was used on the Phoenix Mars Lander. One of the key tasks assigned the Lander is to help determine whether microbial life ever existed on Mars.
Today our products are used in current and next-generation aircraft including the new, super-efficient Boeing 787, and the Airbus A380 (the largest passenger airliner in the world.) Our products are also used in the new fuel efficient engines that power them.