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Harry Brearley (18 February 1871 – 14 July 1948) was an English metallurgist, credited with the invention of "rustless steel" (later to be called "stainless steel" in the anglophone world). Based in Sheffield , his invention brought affordable cutlery to the masses, and saw an expansion of the city's traditional cutlery trade.
Steel is an alloy composed of between 0.2 and 2.0 percent carbon, with the balance being iron. From prehistory through the creation of the blast furnace, iron was produced from iron ore as wrought iron, 99.82–100 percent Fe, and the process of making steel involved adding carbon to iron, usually in a serendipitous manner, in the forge, or via the cementation process.
The Lackawanna Steel Company built a large integrated steel works near Buffalo, which began producing steel from Lake Superior ore in 1903. The company had made steel in Scranton, Pennsylvania since 1840, but moved to provide easier access to iron ore, and in an unsuccessful attempt to avoid labor troubles.
A similar process was discovered independently by Henry Bessemer and patented in 1855. Due to a financial panic in 1857, a company that had already licensed the Bessemer process was able to purchase Kelly's patents, and licensed both under a single scheme using the Bessemer name. Kelly's role in the invention of the process is much less known.
Steel production (in million tons) by country as of 2023. The steel industry is often considered an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development. [65] In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of steelworkers had fallen to ...
US Steel has agreed to be bought by Nippon Steel, Japan’s largest steelmaker, in a $14.1 billion deal. The deal marks the latest step in a gradual decline for the iconic 122-year old company ...
World War I Brodie helmet, made from Hadfield steel. Hadfield was born 28 November 1858 in Attercliffe, then still a village near Sheffield. [1] Hadfield's father, also named Robert Hadfield, owned Hadfield's Steel Foundry in Sheffield and in 1872 was the first manufacturer of steel castings in Britain. He declined to use patented technology ...
US Steel was once the pride and joy of the United States and the most valuable company in the entire world. The 122-year-old company has agreed to be bought by Japanese firm Nippon Steel in a $14. ...