Submitted by György Chityil ... on Fri, 01/19/2018 - 22:23 Hierarchy: NounDescription: {{metallurgy}} An allotropic form of iron which is stable at high temperatures. It is used in the manufacture of Austenite.Ngram: gamma ironNgram Text: gamma ironSource: WiktionaryIssue: 0Wiktionary tag: metallurgyNgram Count: 2