Josiah Marshall Heath

Josiah Marshall Heath
Born(1790-11-08)8 November 1790
Died(1851-01-28)28 January 1851
NationalityEnglish
Known forUse of manganese for crucible steel
Scientific career
FieldsMetallurgy
InstitutionsSheffield

Josiah Marshall Heath (8 November 1790 – 28 January 1851)[1] was an English metallurgist, businessman and naturalist, who invented the use of manganese to deoxidise steel.[2] In India he learned the local steel-making processes, including wootz, but having failed to found a profitable steel mill there he returned to England and settled in Sheffield. His patent kick-started Sheffield's steel industry, but the poor wording of his patent caused competitors not to pay him royalties,[2] and he died in poverty.

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  2. ^ a b Cite error: The named reference Bishop was invoked but never defined (see the help page).