Exhibit 99.1

     Allegheny Technologies Comments on First Quarter and Updates
              J&L Specialty Steel Asset Purchase Status

    PITTSBURGH--(BUSINESS WIRE)--April 1, 2004--Allegheny Technologies
Incorporated (NYSE:ATI) today said that it expects first quarter 2004
results will be impacted by non-cash LIFO (last-in, first-out)
inventory accounting charges of approximately $40 to $45 million, or
$0.50 to $0.56 per share. These charges are primarily due to the
effects of rapidly rising raw materials costs, experienced over the
last several months, on ATI's LIFO inventory accounting methodology.
As a result, ATI expects first quarter 2004 results to be a loss in
the range of $0.60 to $0.70 per share.
    "Business conditions continue to improve," said Pat Hassey, ATI's
President and Chief Executive Officer. "During the first quarter 2004,
base price increases and raw materials surcharge revisions for most of
ATI's products have been effective in keeping pace with rapidly rising
raw materials costs on a cash basis. From a total Company operating
profit perspective, the first quarter 2004 is expected to be much
better than recent quarters, excluding the impact of the non-cash LIFO
accounting charges.
    "We continue to take actions to return ATI to profitability. We
remain focused on cost reductions and on improving our operations
through the ATI Business System. Demand has been improving for our
flat-rolled stainless steel products. However, base prices for these
products remain only slightly above historical lows, while raw
materials surcharges for stainless steel products reached an all-time
high in the first quarter 2004."
    ATI also said that the business and legal due diligence
investigation of J&L Specialty Steel, LLC (J&L) has been
satisfactorily completed in accordance with the terms of the
previously announced Asset Purchase Agreement (APA) dated February 16,
2004. Under the APA, a wholly-owned ATI subsidiary will acquire
substantially all of the assets of J&L, subject to certain closing
conditions. On March 16, 2004, ATI announced that integration trials,
which tested the combined operational capabilities of ATI Allegheny
Ludlum and J&L, had been completed to Allegheny Ludlum's satisfaction.
The transaction, which is targeted for closing on May 3, 2004, remains
subject to other conditions.

    This news release contains forward-looking statements within the
meaning of the Private Securities Litigation Reform Act of 1995. These
statements are based on management's current expectations and are
subject to uncertainties and changes in circumstances. Actual results
may differ materially from those expressed or implied in the
forward-looking statements. Additional information concerning factors
that could cause actual results to differ materially from those
projected in the forward-looking statements is contained in Allegheny
Technologies' filings with the Securities and Exchange Commission. We
assume no duty to update our forward-looking statements.

    Allegheny Technologies Incorporated (NYSE:ATI) is one of the
largest and most diversified specialty materials producers in the
world, with revenues of approximately $1.9 billion in 2003. The
Company has approximately 8,800 employees worldwide and its talented
people use innovative technologies to offer growing global markets a
wide range of specialty materials. High-value products include
nickel-based and cobalt-based alloys and superalloys, titanium and
titanium alloys, specialty steels, super stainless steel, exotic
alloys, which include zirconium, hafnium and niobium, tungsten
materials, and highly engineered strip and Precision Rolled Strip(R)
products. In addition, we produce commodity specialty materials such
as stainless steel sheet and plate, silicon and tool steels, and
forgings and castings. The Allegheny Technologies website can be found
at www.alleghenytechnologies.com.

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