Crossword clues for the word: USX The word USX has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for USX Showing 1 to 6 of 6 results Clue(s) "Pittsburgh based steel giant, formerly" "Steel giant, in the '90s" Fortune 500 steelmaker Prickly sticker Steel giant, as it was known from 1986-2001 Steel giant, from 1986 to 2001