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 ...