What is austenitic or headfill steel ?

What is austenitic or headfill steel ?
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Answer :

: Steel with 1% - 1.5% carbon and 11% - 15% manganese is called austenitic or Hadfield steel . This steel is very weak and brittle in cast condition but it can be made high strength , high toughness and corrosion through heat dissipation process. Then its 50 mm. About 70-80% extension in length is found.
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