CHROMIUM-CHROMIUM OXIDE COATINGS APPLIED TO STEEL SUBSTRATES FOR PACKAGING APPLICATIONS AND A METHOD FOR PRODUCING SAID COATINGS

摘要

The invention relates to a coated steel substrate for packaging applications, said substrate containing 1. a recrystallisation annealed single or double reduced packaging steel blackplate, or 2. a cold-rolled and recovery annealed blackplate, wherein one or both sides of the substrate is coated with a chromium metal - chromium oxide coating layer produced in a single process step by using a trivalent chromium electroplating process, and to a process for obtaining said coated steel substrate.