METHOD FOR MANUFACTURING HIGH MANGANESE HOT-DIP GALVANIZED STEEL SHEET WITH EXCELLENT COATABILITY AND ULTRA-HIGH STRENGTH, AND HIGH MANGANESE HOT-DIP GALVANIZED STEEL SHEET MANUFACTURED BY SAID METHOD
There are provided a method for manufacturing a high manganese hot-dip galvanized steel sheet having superior coatability and ultra-high strength, and a high manganese hot-dip galvanized steel sheet manufactured by the method. The method includes: cold rolling a hot-rolled steel sheet to form a cold...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
13.04.2016
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Subjects | |
Online Access | Get full text |
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Summary: | There are provided a method for manufacturing a high manganese hot-dip galvanized steel sheet having superior coatability and ultra-high strength, and a high manganese hot-dip galvanized steel sheet manufactured by the method. The method includes: cold rolling a hot-rolled steel sheet to form a cold-rolled steel sheet, the hot-rolled steel sheet including, by wt%, C: 0.3% to 1%, Mn: 8% to 25%, Si: 0.1% to 3%, Al: 0.01% to 8%, Cr: 0.1% to 2%, Ti: 0.01% to 0.2%, B: 0.0005% to 0.01%, Ni: 0.01% to 2%, Sn: 0.06% to 0.2%, and a balance of Fe and inevitable impurities; heating the cold-rolled steel sheet; cooling the heated steel sheet to, or maintaining the heated steel sheet; and performing a hot-dip galvanizing process on the cooled or temperature-maintained steel sheet by dipping the cooled or temperature-maintained steel sheet into a hot-dip galvanizing bath. |
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Bibliography: | Application Number: EP20130864152 |