C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/18 (2006.01) C22C 38/60 (2006.01)
Patent
CA 2150445
Acier inoxydable ferritique à usinabilité améliorée utilisable notamment dans le domaine du décolletage, caractérisé en la composition suivante: C < 0,17 % Si < 2,0 % Mn < 2,0 % Cr [11 - 20] % Ni 1,0 % S > 0,55 % Ca > 30 10-4 % O > 70 10-4 % le rapport entre la teneur en calcium et en oxygène Ca/O étant 0,2 Ca/O 0,6, ledit acier étant soumis, après laminage et refroidissement, à un traitement thermique de recuit lui conférant une structure ferritique.
Pedarre Pierre
Terrien Pascal
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Ugine Savoie (societe Anonyme)
Ugitech
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