Method for coating a steel alloy
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United States of America Patent
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Oct 21, 2003
Grant Date -
May 15, 2003
app pub date -
Nov 15, 2001
filing date -
Nov 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of coating dual phase high strength cold rolled steel having controlled amounts of carbon, manganese, and molybdenum is used as a starting material in a galvanizing/galvannealing process. Conditions in a multi-zone furnace of the galvanizing line can be controlled in a conventional manner while still effectively coating the high strength steel. A dual phase high strength steel product is made having a uniform coating of zinc in spite of the high manganese content of the steel.
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