Ductile Ultra High Strength Medium Manganese Steel Produced Through Continuous Annealing and Hot Stamping
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United States of America Patent
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Oct 27, 2016
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Apr 22, 2016
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Apr 22, 2015
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The present invention relates to the use of medium manganese steels for hot stamping to produce ultra high strength steel blanks with improved residual ductility of hot formed steels (as compared to boron-added steels such as 22MnB5 grade). The medium manganese steel sheets require much lower processing temperatures (<700° C. vs. >900° C.) prior to forming operation, allowing reduction of energy consumption during manufacturing.
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