Nickel-containing strengthened sintered ferritic stainless steels
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United States of America Patent
Stats
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Nov 2, 1999
Grant Date -
N/A
app pub date -
Feb 24, 1997
filing date -
Aug 2, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Powder metallurgically produced ferritic stainless steel articles are strengthened by alloying the ferritic material with a small amount of nickel (up to 3.0% by weight). Alloying is carried out by either admixing nickel powder to the ferritic alloy powder or by pre-alloying the stainless steel powder with nickel. Conventional sintering procedures, either in a hydrogen atmosphere or in a partial vacuum, are applicable. High strength stainless steel parts made in this manner are suitable for demanding applications, including automotive exhaust flanges and HEGO bosses.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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SCM METAL PRODUCTS | 2601 WECK DRIVE RESEARCH TRIANGLE PARK NC 27709 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Klar, Erhard | Raleigh, NC | 20 | 208 |
# of filed Patents : 20 Total Citations : 208 | |||
Samal, Prasan K | Raleigh, NC | 5 | 68 |
# of filed Patents : 5 Total Citations : 68 |
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Patent Citation Ranking
- 6 Citation Count
- C22C Class
- 7.73 % this patent is cited more than
- 26 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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