Bethlehem Steel Corporation

Isg Technologies Inc.

C Ramadeva Shastry

Stavros G Fountoulakis

Rajendra Pradhan

Elmer J Wendell

A high strength dual phase cold rolled steel having controlled amounts of carbon, manganese, and molybdenum is used as a starting material in a hot-dip zinc coating process to manufacture a high strength dual phase cold rolled steel having a conventional galvanized or galvannealed coating applied to at least one surface thereof, the zinc coated steel product having a uniform coating of zinc in spite of the high manganese content of the steel.

Coated steel alloy product

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.

Method for coating a steel alloy

A post plating or post coating method for improving formability and weldability properties in sheet steel product having a protective zinc or zinc alloy layer formed on at least one surface thereof. The steps of the method comprise immersing the sheet steel product into a bath containing at least zinc to apply the protective layer, removing the sheet steel product from the bath, the sheet steel product having a protective zinc or zinc alloy layer formed on at least one surface thereof, and applying an alkaline solution to the protective layer to form a zinc oxide layer thereon, the alkaline solution being applied at a location outside the bath.

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Bethlehem, PA, United States of America

C Ramadeva Shastry