Glossary entry (derived from question below)
German term or phrase:
Hartmangan
English translation:
austenitic manganese steel; Hadfield manganese steel
German term
New Zealand
Committed to the Customer
Native in: English (Variant: New Zealand) 
Works in: French to English, German to English, Spanish to English
Hartmangan
From a text about a kind of electric locomotive. Mangan is manganese, so is Hartmangen simply hard manganese, or does it have some other specific name? TIA for your help.
Oct 29, 2007 12:35: Steffen Walter changed "Field (specific)" from "Transport / Transportation / Shipping" to "Materials (Plastics, Ceramics, etc.)"
Proposed translations
Germany
25 years' technical translation, CHEMIST
Native in: English
Works in: German to English, English
austenitic manganese steel or Hadfield manganese steel
See the ref. for more information that you'll ever want to know.
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Note added at 1 hr (2007-10-29 13:33:45 GMT)
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see: http://www.corporatehouse.de/mgt/pdf/gitter_hartmangan.pdf
includes both Hartmangan and Manganhartstahl
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Kevin Lossner
: Plausible enough. It certainly isn't braunite in this context.
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transatgees
: Named after the Sheffield-based company which invented this steel (15% manganese, if I remember correctly).
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good memory: "....containing about 1.2% C and 12% Mn, was invented by Sir Robert Hadfield in 1882....." Some some reason, Prof. Berns insists on using Hadfield manganese steel rather than austenitic, well, he is one of the foremost German experts
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markusg
1 hr
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Retired as of Jan 2019!
Native in: English
Works in: German to English, French to English
tempered manganese steel
Mexico
Committed to Quality and Service
Native in: English (Variant: US)
Works in: German to English
high tensile-strength manganese
Study of suitable measures for im- proving the wear behaviour of buffer heads (application of high tensile- strength manganese)
Untersuchung geeigneter Maßnahmen zur Verbesserung des Verschleißverhaltens der Pufferteller (Verwendung von Hartmangan)
http://www.uic.asso.fr/etf/rapporttechnique/rapporttechnique...
The best never rest!
Native in: English 
Works in: German to English, Spanish to English, English to German, and 3 more.
austenitic hard manganese steel
http://www.freepatentsonline.com/5170932.html
What I don't know is whether the steel must by definition be austenitic (i.e. would martensitic steel form an equally tenacious alloy?).
Discussion