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Patent Searching and Data


Title:
USE OF AN AUSTENITIC STAINLESS STEEL
Document Type and Number:
WIPO Patent Application WO2003027344
Kind Code:
A8
Abstract:
Austenitic alloy with following composition, in weight-percent: Cr 23-30, Ni 25-35, Mo 2.0-6.0, Mn 1.0-6.0, N 0-0.4, C up to 0.05, Si up to 1.0, S up to 0.02, Cu up to 3.0, W 0-6.0, one or more element of Mg, Ce, Ca, B, La, Pr, Zr, Ti, Nd up to 2.0 and balance Fe and normally occurring impurities and additions as wire in oil- and gasextraction, specially reinforcement wire in the application wirelines and which shows a combination of good corrosion resistance and good mechanical properties, especially a tensile strength of at least 310 kpsi at diameters of 1.0 mm and thinner.

Inventors:
SILFVERLIN HAAKAN (SE)
ULFVIN CHARLOTTE (SE)
ZETTERHOLM GUSTAF (SE)
Application Number:
PCT/SE2002/001749
Publication Date:
April 22, 2004
Filing Date:
September 25, 2002
Export Citation:
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Assignee:
SANDVIK AB (SE)
SILFVERLIN HAAKAN (SE)
ULFVIN CHARLOTTE (SE)
ZETTERHOLM GUSTAF (SE)
International Classes:
C22C38/00; C22C38/42; C22C38/44; C22C38/58; C21D8/06; (IPC1-7): C22C38/44; C22C30/00
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