Bethlehem Steel also made some pretty big gun barrels, 12-, 14- and 16-inch naval rifles for battleships serving in WW1 and WW2, including the 16" 50 caliber rifles for the Iowa class.

I went to college and later lived near Bethlehem for sixteen years. One summer I worked as an intern engineer in one of their plants and later knew many folks who worked at the Bethlehem mill, known locally as "The Steel." It's been sad to see basic steelmaking all but desert this country.