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Andrew Carnegie used the Bessemer process to make steel. This method made steel making both very cheap and very efficient.
They are both millionaires and have invented something, Carnegie didn't invent anything, used a process called the bessimer process, to make the production of steel cheaper. Bill Gate created Microsoft.
Sir Henry Bessemer invented the furnace which was instrumental in making the steel manufacturing process more effective. But it was Andrew Carnegie who implemented the furnace in his steel plants along with a few other innovations which made the steel manufacturing process cheaper.
1875 when Andrew Carnegie began producing steel using the Bessemer process
19 Th Century, Bessemer and Carnegie mass production process of steel in furnaces
Steel
Philadelphia, Pennsylvania
made steel cheaper to buy.
Andrew Carnegie
They produce less steel because of global competition. Japan, Korea and Indonesia produce steel that is cheaper and as good. Demand for US steel has been declining over the past 30 years.
The bessemer process.
The process to purify ore and produce steel is known as the Bessemer process, which was invented by Sir Henry Bessemer in 1856. This process involves blowing air through molten iron to remove impurities and increase the carbon content, resulting in the production of steel.