| Title of Invention | DUPLEX STAINLESS STEEL ALLOY AND USE THEREOF |
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| Abstract | The present invention relates to a stainless steel alloy, more specifically a duplex stainless steel alloy with a ferritic-austenitic matrix and high corrosion resistance in combination with good structure stability, specifically a duplex stainless steel with a ferrite content of 40-65% and a well balanced analysis and with a combination of high corrosion resistance and good mechanical properties, such as high ultimate strength and good ductility which is especially suitable for use in applications in oil and gas explorations such as wire, especially as reinforced wire in wireline applications. These purposes are achieved according to the invention by a duplex stainless steel alloy that contains (in Wt%): C0-0,03% Si up to max 0,5% Mn 0-3,0% Cr 24,0-30,0% Ni 4,9-10,0% Mo 3,0-5.0% N 0,28-0,5% S up to max 0,010% Co 0-3,5% W 0-3(0% Cu 0-2,0% Ru 0- 0,3% Al 0-0,03 Ca 0-0,010% the balance being Fe and unavoidable impurities |
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01734-kolnp-2005-description complete.pdf
01734-kolnp-2005-international publication.pdf
1734-kolnp-2005-granted-abstract.pdf
1734-kolnp-2005-granted-claims.pdf
1734-kolnp-2005-granted-correspondence.pdf
1734-kolnp-2005-granted-description (complete).pdf
1734-kolnp-2005-granted-drawings.pdf
1734-kolnp-2005-granted-examination report.pdf
1734-kolnp-2005-granted-form 1.pdf
1734-kolnp-2005-granted-form 18.pdf
1734-kolnp-2005-granted-form 2.pdf
1734-kolnp-2005-granted-form 3.pdf
1734-kolnp-2005-granted-form 5.pdf
1734-kolnp-2005-granted-letter patent.pdf
1734-kolnp-2005-granted-pa.pdf
1734-kolnp-2005-granted-reply to examination report.pdf
1734-kolnp-2005-granted-specification.pdf
| Patent Number | 221132 | ||||||||
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| Indian Patent Application Number | 01734/KOLNP/2005 | ||||||||
| PG Journal Number | 25/2008 | ||||||||
| Publication Date | 20-Jun-2008 | ||||||||
| Grant Date | 18-Jun-2008 | ||||||||
| Date of Filing | 31-Aug-2005 | ||||||||
| Name of Patentee | SANDVIK INTELLECTUAL PROPERTY AB | ||||||||
| Applicant Address | S-811 81 SANDVIKEN | ||||||||
Inventors:
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| PCT International Classification Number | C22C 38/44, 38/52 | ||||||||
| PCT International Application Number | PCT/SE2004/000224 | ||||||||
| PCT International Filing date | 2004-02-19 | ||||||||
PCT Conventions:
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