The correct answer to this open question is the following.
Steel has always been a key component of major constructions in America. The Bessemer process impacted the steel industry in that it represented a major change in the production of steel at better costs and good quality to improve construction. The Bessemer process was invented by English scientist Henry Bessemer, who could develop a method to produce cheaper steel with efficiency. One of the most benefited industries in the United States was Railroads.