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Machine translation
1. (WO2001000898) DUPLEX STAINLESS STEEL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000898 International Application No.: PCT/SE2000/001235
Publication Date: 04.01.2001 International Filing Date: 13.06.2000
IPC:
C22C 38/00 (2006.01) ,C22C 38/42 (2006.01) ,C22C 38/44 (2006.01) ,C22C 38/58 (2006.01)
Applicants: KANGAS, Pasi[SE/SE]; SE (UsOnly)
SANDVIK AB; (publ)[SE/SE]; S-811 81 Sandviken, SE (AllExceptUS)
Inventors: KANGAS, Pasi; SE
Agent: TÅQUIST, Lennart; Sandvik AB Patent Dept. S-811 81 Sandviken, SE
Priority Data:
9902472-129.06.1999SE
Title (EN) DUPLEX STAINLESS STEEL
(FR) ACIER INOXYDABLE DUPLEX
Abstract: front page image
(EN) A duplex stainless steel alloy has been developed, which contains in weight-%: C maximum 0.05, Si maximum 0.8, Mn 0.3-4, Cr 27-35, Ni 3-10, Mo 0-3, N 0.30-0.55, Cu 0.5-3.0, W 2.0-5.0, S maximum 0.010 balance Fe and normally occurring impurities and additions. The content of Fe is 30-70 volume-%. The steel alloy well suited in those chloride environments, where demands are made on god resistance to crevice corrosion. A relatively high content of W has at the same time given a god effect on both the pitting- and crevice corrosion properties.
(FR) L'invention concerne un acier inoxydable duplex qui contient en % poids : C 0,05 maximum Si 0,8 maximum Mn 0,3-4 Cr 27-35 Ni 3-10 Mo 0-3 N 0,30-0,55 Cu 0,5-3,0 W 2,0-5,0 S 0,010 maximum, le solde étant du Fe et des impuretés et additions habituelles. Le contenu de Fe représente 30-70 pourcent du volume. L'alliage d'acier est adapté aux environnements chlorurés, dans lesquels une bonne résistance à la corrosion caverneuse est exigée. Une teneur relativement élevée en W exerce un effet bénéfique sur la corrosion caverneuse et la corrosion par piqûres.
Designated States: CA, CN, IN, JP, KR, NO, US, ZA
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)