C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/12 (2006.01) C21D 7/13 (2006.01) C21D 8/02 (2006.01) C22C 38/00 (2006.01) C22C 38/04 (2006.01) C22C 38/06 (2006.01)
Patent
CA 2266564
A high-strength and high-toughness steel product having at least about 0.001% and less than about 0.030% by weight C, not more than about 0.60% by weight Si, from about 0.8 to 3.0% by weight Mn, from about 0.005 to 0.20% by weight Nb, from about 0.0003 to 0.0050% by weight B, and not more than about 0.005% by weight Al, wherein at least 90% of the product has a bainite structure. A method of making this steel product is subject to less stringent production controls because of the nature of the composition.
Amano Keniti
Itakura Noritsugu
Kawabata Fumimaru
Okatsu Mitsuhiro
Jfe Steel Corporation
Kawasaki Steel Corporation
Smart & Biggar
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