| 1854 |
| |
Steel Company organized to operate the Pompton
Furnace
|
| 1901 |
| |
Incorporation of Allegheny Steel & Iron
Company which was renamed Allegheny Steel Company in 1905
|
| 1912 |
| |
Englishman Harry Bearly is widely credited with
inventing stainless steel
|
| 1916 |
| |
First United States patent awarded for stainless
steel
|
| 1924 |
| |
First patent awarded to Allegheny Steel for stainless steel
|
| 1938 |
| |
Merger of Allegheny Steel Company and Ludlum
Steel Company creates Allegheny Ludlum Steel
Corporation
|
| 1944 |
| |
High-temperature alloys for aircraft turbines
developed, major contribution to the war effort
and future space travel
|
| 1955 |
| |
Allegheny Ludlum first commercialized
superalloys melted by a consumable electrode
vacuum remelting process
|
| 1956 |
| |
Major expansion brings all company research work
to Brackenridge Technical Center
|
| 1960 |
| |
First company to offer bright annealed stainless steel
in large volume
|
| 1966 |
| |
Patent awarded for development of Type 409
stainless steel for automotive exhaust systems
|
| 1984 |
| |
Patent issued for AL 29-4C® alloy used in
residential furnaces
|
| 1985 |
| |
Patent issued for AL-6XN®alloy
|
| 1987 |
| |
First public offering of Allegheny Ludlum stock
- NYSE (ALS)
|
| 1994 |
| |
Acquisition of Jessop Steel makes Allegheny Ludlum a fully integrated producer
of specialty steel plate products
|
| 1996 |
| |
Combined with Teledyne, Inc. and became part of the Allegheny Teledyne
specialty metal companies
|
| 1998 |
| |
Allegheny Ludlum completes asset purchase from and long-term conversion
agreement with Bethlehem Steel Corporation, adding melt capacity
and the ability to produce wide sheet and plate products
|
| 1999 |
| |
Allegheny Teledyne completes its transformation and
changes its name to Allegheny Technologies Incorporated.
Allegheny Technologies consists of Allegheny Ludlum,
Allvac, Oremet-Wah Chang, Rome Metals, Metalworking Products,
Casting Service, and Portland Forge
|
| 1999 |
| |
Allegheny Ludlum acquires assets of Lukens’ Washington Steel
Division from Bethlehem Steel Corporation further enhancing finishing
capacity for sheet and strip
|
| 2004 |
| |
Jewel Acquisition, LLC, a wholly owned subsidiary of Allegheny Ludlum,
acquires most of the assets of J&L Specialty Steel, LLC
which include a melt facility in Midland, PA and a finishing
facility in Louisville, OH.
|
