For more than a decade, Duferdofin-Nucor marked semi-finished products (dog-bone, blooms and billets) by applying paint manually and writing a casting number on each piece of steel for reference. This manual system limited data completeness and was also subject to a high level of human error.
Over time, this system proved to be inadequate, inefficient and incapable of guaranteeing the transparency and traceability of the entire production process. Duferdofin-Nucor required a durable label that would ensure reliable grip on uneven surfaces and provide resistance to the dust and soil that characterise steel warehouses. The labels would also be required to withstand temperatures of approximately 100°C as well as long journeys on open railcars and therefore variable weather conditions.
Consequently, the company started to explore alternative solutions offered by the market and used by other manufacturers, testing different labelling systems, such as metal labels applied with silicone, plastic tags applied by nail gun and various types of adhesive labels.