Properties of Hexavalent Chromium Free Electrogalvanized Steel Sheets for Fuel Tank Use
Date Published: 2006-04-03
Paper Number:2006-01-0756
DOI: 10.4271/2006-01-0756
Citation:
Tada, C., Suzuki, S., Nakamaru, H., and Kato, C., "Properties of Hexavalent Chromium Free Electrogalvanized Steel Sheets for Fuel Tank Use," SAE Technical Paper 2006-01-0756, 2006, doi:10.4271/2006-01-0756.
Materials used in automobile and motorcycle fuel tanks must provide good press formability and good seam weldability in addition to good internal and external corrosion resistance. Chromate-treated steel sheets, which contain Cr(VI), possess high corrosion resistance and have been successfully used for many years. Recently, however, Cr(VI) has been recognized as a harmful chemical which affects the human body. In reply to the social requirement of eliminating Cr(VI), Excelzinc Nickel GT has been developed to meet those requirements. Furthermore, Excelzinc GP accomplishes an excellent internal and external corrosion resistance in addition to the performance of Excelzinc Nickel GT by applying a gasoline-resistant resin layer for the tank inside and a lubricant resin layer for the tank outside. The properties of these new products meet all requirements for fuel tanks.
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