C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/06 (2006.01) C21D 8/02 (2006.01) C22C 38/04 (2006.01) C22C 38/08 (2006.01) C22C 38/12 (2006.01) C22C 38/14 (2006.01) C22C 38/18 (2006.01)
Patent
CA 2422352
A cold-rolled steel sheet having an ultrafine grain structure including a ferrite phase is provided. The cold-rolled steel sheet contains C, Si, Mn, N, Ti, Nb, Al, P, S, N and Fe and incidental impurities. The ferrite phase has a content of 65 percent by volume or more and an average grain size of 3.5 µ m or less.
Mochida Tetsuo
Oonishi Tomohisa
Sakata Kei
Seto Kazuhiro
Jfe Steel Corporation
Kawasaki Steel Corporation
Moffat & Co.
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