SECOND AMENDMENT TO CREDIT AGREEMENT Among ALLEGHENY TECHNOLOGIES INCORPORATED, as the Borrower THE FINANCIAL INSTITUTIONS PARTY HERETO, as the Lenders MELLON BANK, N.A., JPMORGAN CHASE BANK, and BANK OF AMERICA, N.A., as Syndication Agents andCredit Agreement • March 24th, 2003 • Allegheny Technologies Inc • Steel pipe & tubes • Pennsylvania
