Robert Hadfield

Infobox Engineer

image_width = 150px
caption = PAGENAME
nationality = United Kingdom
birth_date = November 28, 1858
birth_place = Sheffield
death_date = September 30, 1940
death_place = Surrey
education =
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parents =
children =
discipline =
institutions =
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significant_projects = manganese steel silicon steel
significant_design =
significant_advance =
significant_awards =

Sir Robert Abbott Hadfield (born November 28, 1858, Sheffield; died September 30, 1940, Surrey) was an English metallurgist, noted for his 1882 discovery of manganese steel, one of the first steel alloys. He also invented silicon steel which is important in electrical applications.

Hadfield's father, also named Robert Hadfield, owned Hadfield's Steel Foundry in Sheffield and was one of the first manufacturers of steel castings. The younger Hadfield took over the business in 1888 and built the firm into one of the largest foundries in the world. He published over 200 papers on his metallurgical research. Hadfield was knighted in 1908 and made a baronet in 1917. He was elected as a Fellow of the Royal Society in 1909. He was awarded the John Fritz Medal in 1921 and the Albert Medal (RSA) in 1935, both for his contributions to metallurgy.

He is commemorated in the Sir Robert Hadfield Building at the University of Sheffield, which contains the Department of Engineering Materials. There is also a wing at the Northern General Hospital named after him.

External links

* [ Steel City Founders biography]
* [ Geoffrey Tweedale, "Sir Robert Abbott Hadfield F.R.S. (1858-1940) and the Discovery of Manganese Steel", "Notes and Records of the Royal Society of London", November 1985, pp. 63-74 (only first page viewable without subscription)]
* [ Austenitic manganese steels]

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