The Bessemer process is three times faster than the open-hearth, and correspondingly cheaper; but since the quality of the steel in a Bessemer "heat" must be judged by fallible .
A nonintegrated producer that purchases pig iron and scrap for its twelve open-hearth furnaces, it specialized in heavy steel plate, therefore cashed in on the peak demand for .
The process not only makes steel of comparable quality to that made in open-hearth operations but does it much faster and cheaper.