Percy Carlyle Gilchrist (December 27, 1851 - December 16, 1935) was a British chemist and metallurgist born in Lyme Regis, Dorset, and who studied at the Royal School of Mines. Events 537 - The Hagia Sophia is completed 1512 - The Spanish Crown issues the Laws of Burgos, governing the 1851 ( MDCCCLI) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian Calendar (or a Common year Events 755 - An Lushan revolts against Chancellor Yang Guozhong at Fanyang, initiating the An Shi Rebellion Year 1935 ( MCMXXXV) was a Common year starting on Tuesday (link will display full calendar of the Gregorian calendar. He is best known for his collaboration with his cousin, Sidney Gilchrist Thomas on what became the standard method of making steel. Sidney Gilchrist Thomas ( April 16, 1850 - February 1, 1885) was an English inventor Steel is an Alloy consisting mostly of Iron, with a Carbon content between 0 The entailed producing low-phosphorus steel from high-phosphorus ores, such as those commonly occurring in the UK and this meant that steel became cheaply available to British industry. He developed the process in 1875-77, together with his cousin and it involved melting pig iron in a convector similar to that used in the Bessemer process and subjected to prolonged blowing. The Bessemer process was the first inexpensive Industrial process for the mass-production of Steel from molten Pig iron. The oxygen in the blast of air oxidized carbon and other impurities, and the addition of lime at this stage caused the oxides to separate out as a slag on the surface of the molten metal. Continued blowing then brought about oxidation of the phosphorus.
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