Changes

The '''Steel industry''' is the worldwide heavy industry that produces [[steel]]. Most of the steel is used in construction of factories, office buildings and bridges, and in automobiles, appliances and machinery. Demand for steel fluctuates greatly.  

The '''Steel industry''' is the worldwide heavy industry that produces [[steel]]. Most of the steel is used in construction of factories, office buildings and bridges, and in automobiles, appliances and machinery. Demand for steel fluctuates greatly.  

   

   

The '''History of the Steel industry''' is part of the core history of industrialization around the world since the early 19th century.  

The '''History of the Steel industry''' is part of the core history of industrialization around the world since the early 19th century.  

[[Image:Bessemer process 1889.gif|right|thumb|350px|{{#ifexist:Template:Bessemer process 1889.gif/credit|{{Bessemer process 1889.gif/credit}}<br/>|}}]]

[[File:Bessmer.jpg|right|thumb|350px|Bessemer process, 1880s]]  

==History pre-1800==

==History pre-1800==