The steelmaker says a blast furnace in Granite City, Illinois, is back in operation, which it announced it intended to do late last year.

NEW YORK (AP) — United States Steel on Tuesday detailed its billion-dollar multiyear growth plan with new owner Nippon Steel that includes modernizing the century-old steelmaker. The announcement comes just five months after Nippon Steel finalized a ...

An egg hatched in the bald eagle nest at U.S. Steel's Irvin plant​.

The U.S. Steel Tower has landed what might seem an unexpected newcomer, one that is the driving force behind Pittsburgh's newest office tower less than a mile away.

The report recommends regional steel plants modernize and use direct reduction and electric arc furnace technologies, among other ideas.