EXHIBIT 23.1


            Consent of Independent Registered Public Accounting Firm


We consent to the use of our report dated February 23, 2005, included in this
Annual Report (Form 10-K) of Allegheny Technologies Incorporated for the year
ended December 31, 2004, with respect to the consolidated financial statements,
included in this Form 10-K.

We consent to the incorporation by reference in Registration Statement (as may
be amended) Nos. 333-08235, 333-10225, 333-10227, 333-10229, 333-10245,
333-46695, 333-45965, 333-48649, 333-59161, 333-46796, 333-54712, 333-61210,
333-113820, and 333-121277 of our report dated February 23, 2005, with respect
to the consolidated financial statements of Allegheny Technologies Incorporated,
included herein, and our report dated February 23, 2005, with respect to
Allegheny Technologies Incorporated management's assessment of the effectiveness
of internal control over financial reporting and the effectiveness of internal
control over financial reporting of Allegheny Technologies Incorporated,
included in this Annual Report (Form 10-K) of Allegheny Technologies
Incorporated.


/s/ Ernst & Young LLP

Pittsburgh, Pennsylvania
February 25, 2005