Explosions at a massive United States Steel mill in Western Pennsylvania left two people dead and at least 10 injured, according to officials from Allegheny County and U.S. Steel. The explosions ...

The Clairton Coke Works Plant in the Mon Valley plays an essential role in steelmaking in the United States. The century-old plant was the site of an explosion Monday that killed two people and left ...

Coke is the fuel used to generate the 2,912-degree heat needed to melt iron ore to make steel. Making coke requires coal to be superheated to nearly 2,000 degrees itself so it becomes pure carbon. U.S ...