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Bessemer Process

A look into the process developed by the innovator Henry Bessemer

Matt Bode

on 6 December 2012

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Transcript of Bessemer Process

Invented by Henry Bessemer The Bessemer Process What is it? The Bessemer Process is a process used to convert large quantities of molten pig iron into steel. What problem did this new process solve? For years, iron workers struggled to convert iron into strong, dependable, workable steel. (Steel has a much lower percent composition of carbon)
Bessemer's method used aeration to rid the pig iron of unwanted carbon How did this change people's lives? Technological Predecessors Before the Bessemer Process, iron workers could not reduce the amount of carbon in their pig iron.
Therefore, the process preceding the Bessemer Process involved taking wrought iron and adding tiny amounts of carbon to it until the correct percentage was reached for steel
Another process involved firing the pig iron for some three hours, but this process took a long time and burnt huge quantities of expensive coke. This process had been used for centuries outside of Europe, but Bessemer discovered how to do it on an industrial scale, and patented the process in 1855. The Bessemer Process made steel much more affordable for everyday people.
The price for a long ton of steel dropped to a mere £7! (Was previously £40)
Increased demand for factory workers Positive/Negative Effects? Positives Negatives Made stronger steel
Produced steel at less than 1 quarter of the previous price
Using the Bessemer Process, steel could be produced in a fraction of the time that the previous method took
Stronger steel allowed for more architectural advances, and eventually led to the building of skyscrapers in the early 1900s
This innovative process was essential for the success of the industrial revolution--Essentially, the Bessemer Process led to the modern steel industry today, and none of our advancements in this field would have been possible without Henry Bessemer Bessemer Process resulted in production of new, incredibly powerful weapons (Gatling Gun, Cannon Shells)
Increased factory production and demand for factory workers, where the workers were exploited
Workers lived in horrible conditions (slums)
Also led to increase in the demand of child labor since steel factories increased their production So does this make a better world?? Yes "Bessemer process." Princeton University - Welcome. http://www.princeton.edu/~achaney/tmve/wiki100k/docs/Bessemer_process.html (accessed December 6, 2012).
"Bessemer process - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. http://en.wikipedia.org/wiki/Bessemer_process#Importance (accessed December 6, 2012).
"Making the Modern World - New science, new materials, new power." Making the Modern World. http://www.makingthemodernworld.org.uk/stories/the_second_industrial_revolution/05.ST.01/?scene=3 (accessed December 6, 2012).
eben_cooke. "Negative Effects Of The Industrial Revolution." Upload & Share PowerPoint presentations and documents. http://www.slideshare.net/eben_cooke/negative-effects-of-the-industrial-revolution#btnNext (accessed December 6, 2012).
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