Hot-dip galvanized steel sheet with zero-spangle having excellen

Details Hot-dip galvanized steel sheet with zero-spangle having excellen Hot-dip galvanized steel sheet with zero-spangle having excellen

1981-07-08

1983-05-10

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

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

420514, 427433, B32B 1518, C22C 1804

Patent

active

043830064

ABSTRACT:
Hot-dip galvanized steel sheet, wherein said coating layer is characterized by being highly resistant to flaking either in a high-temperature humid atmosphere or in long-term indoor aging. The coating comprises 0.1 to less than 0.2 wt % Al, 0.1-0.5 wt % Sb, the remainder being Zn and unavoidable impurities, the total of the unavoidable impurities other than Fe, namely Pb, Cd and Sn being less than 0.02 wt %, the ratio of Sb/Pb being 10-250, and the Al present in the coating layer being in the form of an Al-Sb eutectic.

REFERENCES:
patent: 4056366 (1977-11-01), Lee et al.
patent: 4056657 (1977-11-01), Leckie et al.

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