C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/48 (2006.01) C21D 7/13 (2006.01) C21D 8/02 (2006.01) C21D 9/46 (2006.01) C22C 38/04 (2006.01) C22C 38/58 (2006.01)
Patent
CA 2714218
The invention relates to a hot-rolled plate made of austenitic stainless steel, the chemical composition of which comprises, the contents being expressed by weight: 0.015% = C = 0.030%; 0.5% = Mn = 2%; Si = 2%; 16.5% = Cr = 18%; 6% = Ni = 7%; S = 0.015%, P = 0.045%; Al = 0.050%; 0.15% = Nb = 0.31%; 0.12% = N = 0.16%; the Nb and N contents being such that: Nb/8+0, 1%, = N = Nb/8+0, 12%, and, optionally: Mo = 0.6% and 0.0005% = B = 0.0025%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.
L'invention concerne une tôle laminée à chaud en acier inoxydable austénitique dont la composition chimique comprend, les teneurs étant exprimées en poids: 0,015% <= C <= 0,030%, 0,5% <= Mn <= 2%, Si <= 2%, 16,5% <= Cr <= 18%, 6% <= Ni <= 7%, S <= 0,015%, P<= 0.045%, Al <= 0,050%, 0,15% <= Nb <= 0,31%, 0,12% <= N<= 0,16%, les teneurs en Nb et en N étant telles que : Nb/8+0, 1%, <= N<= Nb/8+0, 12%, et à titre optionnel: Mo <= 0.6%, 0,0005%<= B<= 0,0025%, le reste de la composition étant constitué de fer et d'impuretés inévitables résultant de l'élaboration.
Glez Jean-Christophe
Kostoj Valerie
Arcelormittal-Stainless France
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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