Exhibit 99.1

 Allegheny Technologies CEO Pat Hassey to Speak at Credit Suisse Aerospace and
                          Defense Investor Conference

    PITTSBURGH--(BUSINESS WIRE)--Dec. 4, 2006--Allegheny Technologies
Incorporated (NYSE:ATI) announced that L. Patrick Hassey, Chairman,
President, and Chief Executive Officer, will speak at the Credit
Suisse Aerospace and Defense Conference in New York, NY on December 6,
2006. Mr. Hassey's remarks and presentation slides will be available
at 1:45 p.m. on Wednesday, December 6, 2006, on ATI's website
www.alleghenytechnologies.com under the Investor tab.

    The presentation will contain "forward-looking statements" within
the meaning of the Private Securities Litigation Reform Act of 1995.
Certain statements in the presentation will relate to future events
and expectations and, as such, constitute forward-looking statements.
Forward-looking statements include those containing such words as
"anticipates," "believes," "estimates," "expects," "would," "should,"
"will," "will likely result," "forecast," "outlook," "projects," and
similar expressions. Forward-looking statements are based on
management's current expectations and include known and unknown risks,
uncertainties and other factors, many of which we are unable to
predict or control, that may cause our actual results, performance or
achievements to materially differ from those expressed or implied in
the forward-looking statements. Important factors that could cause
actual results to differ materially from those in the forward-looking
statements include: (a) material adverse changes in economic or
industry conditions generally, including global supply and demand
conditions and prices for our specialty metals; (b) material adverse
changes in the markets we serve, including the aerospace and defense,
construction and mining, automotive, electrical energy, chemical
process industry, oil and gas, and other markets; (c) our inability to
achieve the level of cost savings, productivity improvements,
synergies, growth or other benefits anticipated by management,
including those anticipated from strategic investments and the
integration of acquired businesses, whether due to significant
increases in energy, raw materials or employee benefits costs, or
other factors; (d) volatility of prices and availability of supply of
the raw materials that are critical to the manufacture of our
products; and (e) other risk factors summarized in our Annual Report
on Form 10-K for the year ended December 31, 2005, and in other
reports filed with the Securities and Exchange Commission. We assume
no duty to update our forward-looking statements.

    Building the World's Best Specialty Metals Company(TM)

    Allegheny Technologies Incorporated is one of the largest and most
diversified specialty metals producers in the world with revenues of
$4.4 billion during the most recent four quarters ending September 30,
2006. ATI has approximately 9,300 full-time employees world-wide who
use innovative technologies to offer growing global markets a wide
range of specialty metals solutions. Our major markets are aerospace
and defense, chemical process industry/oil and gas, electrical energy,
medical, automotive, food equipment and appliance, machine and cutting
tools, and construction and mining. Our products include titanium and
titanium alloys, nickel-based alloys and superalloys, stainless and
specialty steels, zirconium, hafnium, and niobium, tungsten materials,
grain-oriented silicon electrical steel and tool steels, and forgings
and castings. The Allegheny Technologies website is
www.alleghenytechnologies.com.

    CONTACT: Allegheny Technologies Incorporated
             Dan L. Greenfield, 412-394-3004