C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/16 (2006.01) B22D 11/00 (2006.01) C22C 33/04 (2006.01)
Patent
CA 2134342
The present invention provides a thin cast strip or a thin steel sheet having good cast strip properties and mechanical properties from a molten steel containing a large amount of iron scrap containing Cu and Sn. The thin cast strip or thin steel sheet is characterized by being a thin cast strip or thin steel sheet of a common carbon steel comprising 0.15 to 10% by weight of Cu and 0.03 to 0.5% by weight of Sn, the primary dendrite spacing on a surface layer portion being in the range of from 5 to 100 µm.
L'invention concerne une pièce mince moulée ou tôle mince en acier possédant des qualités de moulage et des propriétés mécaniques excellentes, fabriquées à partir d'un acier fondu contenant des quantités importantes de riblons contenant Cu et Sn, où la teneur en Cu se situe entre 0,15 et 10 en poids, la teneur en Sn entre 0,03 et 0,5 % en poids et l'écartement de la ramification dentritique primaire d'une partie de couche superficielle entre 5 et 100 mum.
Mizoguchi Toshiaki
Moroboshi Takashi
Shio Kiyomi
Ueshima Yoshiyuki
Goudreau Gage Dubuc
Nippon Steel Corporation
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