The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation ...

(Reuters) -United States Steel said on Friday a fatal blast that killed two and injured 10 others at its Clairton Coke Works ...

U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing ...

The Trump administration on Friday widened the reach of its 50% tariffs on steel and aluminum imports by adding hundreds of ...

U.S. Steel released preliminary findings about the potential cause of Monday's deadly explosion at U.S. Steel Clairton Coke ...

Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near ...

The US' decision to widen the scope of products subject to steel and aluminum tariffs on top of the June increase to 50 ...

Speaking after a high-profile summit with Russian President Vladimir Putin in Alaska, Trump told Fox News host Sean Hannity ...

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant.

Aug. 16 (UPI) --The deadly explosion in the Steel Clairton Coke Works near Pittsburgh occurred when a gas valve was flushed in preparation of planned maintenance, U.S. Steel said in preliminary ...