ATI Allegheny Ludlum Announces Stainless Steel Price Increase.

PITTSBURGH -- Allegheny Technologies Incorporated (NYSE:ATI) announced that ATI Allegheny Ludlum is increasing selling prices for most cold-rolled and hot-rolled stainless steel sheet and strip products, continuous-mill plate products, and duplex alloys.

The following price increases are effective with shipments beginning May 1, 2006:

--Selling prices for most hot-rolled and cold-rolled stainless steel sheet and strip products are being increased by approximately 6%.

--Selling prices for stainless steel continuous-mill-plate products are being increased by approximately 9%.

--Selling prices for AL 2003(TM) lean duplex alloy and AL 2205(TM) duplex alloy sheet, strip, and plate products are being increased by approximately 6%.

The price increases are necessary to offset rising costs and to support continued capital investments and growth.

Surcharges remain in effect as described on the Allegheny Ludlum website www.alleghenyludlum.com.

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.

ATI Allegheny Ludlum is a world leader in the production and marketing of sheet, plate, and strip specialty metals including stainless steel, nickel-based alloys, titanium, and titanium-based alloys, grain-oriented silicon electrical steel and tool steel. ATI Allegheny Ludlum's website can be found at www.alleghenyludlum.com.

Allegheny Technologies Incorporated is one of the largest and most diversified specialty metals producers in the world with revenues of over $3.5 billion in 2005. 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, 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 nickel-based alloys and superalloys, titanium and titanium alloys, 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.