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ALUMINUM PLATED STEEL SHEET WITH EXCELLENT CORROSION RESISTANCE AND A HOT PRESS FORMED ARTICLE USING THE SAME AND A MANUFACTURING METHOD THEREOF, CAPABLE OF PREVENTING ALUMINUM OXIDE FROM BEING EXCESSIVELY FORMED LOCALLY BY MAINTAINING A HEATING TEMPERATURE BELOW 970amp;deg;C
ALUMINUM PLATED STEEL SHEET WITH EXCELLENT CORROSION RESISTANCE AND A HOT PRESS FORMED ARTICLE USING THE SAME AND A MANUFACTURING METHOD THEREOF, CAPABLE OF PREVENTING ALUMINUM OXIDE FROM BEING EXCESSIVELY FORMED LOCALLY BY MAINTAINING A HEATING TEMPERATURE BELOW 970amp;deg;C
PURPOSE: Aluminum plated steel sheet with excellent corrosion resistance and a hot press formed article using the same and a manufacturing method thereof are provided to prevent intermetallic compound layers from being cracked by the heat contraction difference and the temperature irregularity between intermetallic compounds in a cooling process.;CONSTITUTION: A basic steel sheet is plated with an aluminium plating layer of a plating amount of 20~100g/m. The plating layer comprises Si 12 weight% or less. The plating layer comprises one or more kinds selected from Cr 0.7 weight% and Mo 0.7 weight% or less. The aluminum plated steel sheet uses hot rolled steel sheet or cooling-rolled steel sheet as a basic steel sheet. The plating layer comprises Fe3Al+FeAl compound layer. The Fe3Al+FeAl compound layer has 30% or higher occupancy based on the thickness of the plating layer.;COPYRIGHT KIPO 2010
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