Alloyed zinc dip galvanized steel sheet

Details Alloyed zinc dip galvanized steel sheet Alloyed zinc dip galvanized steel sheet

2005-03-29

2005-03-29

Yee, Deborah (Department: 1742)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C148S320000

Reexamination Certificate

active

06872469

ABSTRACT:
A galvannealed steel sheet having excellent surface appearance and press formability, characterized in that a steel sheet comprises a galvannealed layer at least one surface of the steel sheet, the steel sheet comprising 0.001 to 0.005% by mass of C, 0.010 to 0.040% by mass of Si, 0.05 to 0.25% by mass of Mn, and 0.010 to 0.030% by mass of P, wherein the Si, Mn, and P satisfy the relation 0.030%≦Si+P+Mn/20≦0.070%, and its production method.

REFERENCES:
patent: 4368084 (1983-01-01), Irie et al.
patent: 5049453 (1991-09-01), Suemitsu et al.
patent: 4-41658 (1992-02-01), None
patent: 406081044 (1994-03-01), None
patent: 8-232045 (1996-09-01), None
patent: 9-111432 (1997-04-01), None
patent: 409235652 (1997-09-01), None
patent: 11-269625 (1999-10-01), None

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