Stock material or miscellaneous articles – Composite – Of metal
Reexamination Certificate
2005-05-10
2005-05-10
Koehler, Robert R. (Department: 1775)
Stock material or miscellaneous articles
Composite
Of metal
C029S081010, C029S081060, C029S081080, C148S246000, C148S286000, C148S516000, C148S519000, C148S537000, C148S592000, C148S660000, C148S662000, C148S663000, C428S141000, C428S155000, C428S212000, C428S336000, C428S409000, C428S472000, C428S926000
Reexamination Certificate
active
06890665
ABSTRACT:
Martensitic stainless steel whose steel composition is restricted within a specific range for each element is provided. The scale layer formed on the surface of the base material consists of an inner layer scale mainly including FeCr2O4and an outer layer scale having a thickness of not more than 20 μm, which outer layer is deposited on the inner layer scale at a surface coverage of not less than 1% and not more than 15%. The application of rust preventive oil onto the surface of the steel ensures an excellent weather resistance during a long term, and therefore a martensitic stainless steel forming no rust either in the outdoor depository or in the indoor depository can be provided. The steel can be used to manufacture, not only steel pipes, but also steel plates, steel rods and others in a wide application field.
REFERENCES:
patent: 5520751 (1996-05-01), Pareek et al.
patent: 6210806 (2001-04-01), Hidaka et al.
patent: 63-238217 (1988-10-01), None
patent: 937782 (1999-08-01), None
patent: 1008666 (2000-06-01), None
patent: 1099772 (2001-05-01), None
patent: 9-143629 (1997-06-01), None
patent: 11-302802 (1999-11-01), None
Clark & Brody
Koehler Robert R.
Sumitomo Metal Industries Ltd.
LandOfFree
Martensitic stainless steel and method for manufacturing the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Martensitic stainless steel and method for manufacturing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Martensitic stainless steel and method for manufacturing the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3446033