Properties of chromate-free coated electrogalvanized steel sheets for electrical appliances

In the field of electrical appliances, a material used for the chassis needs a good electric-conductivity to accomplish a stable ground property in addition to good white rust resistance. On the other hand, in reply to the social requirement of eliminating hexavalent chromium, which is one of the environmentally un-friendly materials, chromate-free treated electrogalvanized steel sheet has been developed. "RIVER ZINC FC-X" has been developed to meet those requirements. "RIVER ZINC FC-X" shows good white rust resistance, high electroconductivity and anti-fingerprinting property. Furthermore, "RIVER ZINC FC-E" accomplishes a good frictional property in addition to the performance of "RIVER ZINC FC-X" by applying lubricant wax. The performance of those new products has been found to be good enough for practical uses in comparison with the conventional electrogalvanized steel sheets having a chromate layer.