U.S. Steel Corp. has sued Power Piping Co., an Etna steamfitter, to recoup nearly $7 million in expenses the company claims it paid since an explosion in 2010 at the steelmaker's Clairton coke works.
The suit was filed Friday in Allegheny County Common Pleas Court.
U.S. Steel says it has spent more than $6.9 million in connection with the July 14, 2010 explosion in a section of the works known as "B battery" that injured numerous people.
Power Piping workers were trying to shut down the flow of volatile gas in order to clean a piece of equipment when the explosion occurred.
According to U.S. Steel's interpretation of its contract with Power Piping, the steamfitter is responsible for various expenses arising from the explosion, including workers' compensation claims, property damage and litigation.
U.S. Steel has requested a jury trial.
Jonathan D. Silver: email@example.com or 412-263-1962.