Highly stable, steel and steel strips or steel sheets...

Details Highly stable, steel and steel strips or steel sheets... Highly stable, steel and steel strips or steel sheets...

C - Chemistry, Metallurgy

22

C

C22C 38/06 (2006.01) C21D 8/02 (2006.01) C22C 38/00 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01)

Patent

CA 2414138

The invention relates to steel strips or steel sheets exhibiting good cold forming ability and increased stability, comprising a light steel, which contains (in wt. %) C: <=1.00 %, Mn: 7.0030.00 %, Al: 1.00 10.00 %, Si: > 2.50 8.00 %, Al + Si: > 3.50 12.00 %, B: > 0.00 - < 0.01 %, and optionally Ni: < 8.00 %, Cu: < 3.00 %, N: < 0.60 %, Nb: < 0.30 %, Ti: < 0.30 %, V: < 0.30 %, P: < 0.01 %, the remainder being iron and unavoidable impurities.

L'invention concerne un feuillard ou une tôle d'acier présentant une bonne aptitude au formage à froid et une résistance très élevée, constitué(e) d'un acier léger qui comprend (en % en poids) les constituants suivants : C: <=1,00 %, Mn: 7,00 - 30,00 %, Al: 1,00 - 10,00 %, Si: > 2,50 - 8,00 %, Al + Si: > 3,50 - 12,00 %, B: > 0,00 - < 0,01 %, ainsi qu'éventuellement Ni: < 8,00 %, Cu: < 3,00 %, N: < 0,60 %, Nb: < 0,30 %, Ti: < 0,30 %, V: < 0,30 %, P: < 0,01 %, le reste étant constitué de fer et d'impuretés inévitables.

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