HIGH-STRENGTH ALUMINUM PLATED STEEL SHEET SUPERIOR IN CORROSION RESISTANCE AFTER COATING, AND MEMBER FOR AUTOMOBILE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an Al-base plated steel sheet for hot press superior in corrosion resistance after coating. SOLUTION: The aluminum plated steel sheet for hot press superior in corrosion resistance after coating is characterized by having intermetallic compounds containing Al and Fe as main components and Mn of 0.1% or more, on the surface of a steel containing 0.05-0.7% C by mass%. The intermetallic compounds may also contain Si. The addition of Mn provides superior corrosion resistance after coating.