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Title: Tool steel

Abstract: Reduced decarburization production of steel by providing a metallized, e.g., aluminized, adherent removable protective surface coating on the exterior of the steel workpiece prior to heating for hot-working and/or annealing, e.g., of the semi-finished billet, and metallized coating products thereby fabricated.


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Inventors: De Walt, Maurice P. (New Kensington, PA, US)

Application Number: 564953
Filing Date: 1975-04-03
Publication_date: 1977-07-19
Assignee: Continental Copper & Steel Industries, Inc. (New York, NY)
Primary Class(es): 148/625 148/531
Other Classes:
US Patent Ref:
1127072Feb, 1915Morse148/12.
3031330Apr, 1962Hornick et al.29/196.
3344817Oct, 1967Connard148/12.
3527624Sep, 1970Biretta et al.148/14.
3850699Nov, 1974Gierek et al.29/196.
3959028May, 1976Jackson148/11.

Other Refs:
Primary Examiner: Stallard, W.
Assistant Examiner:
Attorney: March; Arthur A.