Special steel production processes: PESR remelting

PESR remelting combines the advantages of ESR remelting with the added benefit of operating in an inert atmosphere. This environment, composed of pressurized inert gases, eliminates the presence of oxygen, preventing oxidation and the reduction of chemical element percentages during the process. Additionally, it avoids hydrogen absorption, ensuring extremely precise chemical analyses. The final result is a special steel with superior performance, highly valued for its purity.

During the PESR remelting process, the steel is melted under an electrically conductive slag in a pressurized environment. This method allows the production of large-section billets with high isotropy and homogeneity. The Superclean ® steel produced using this technique stands out for its purity and excellent chemical and physical properties, making it ideal for applications that require special steel with high performance.

Thanks to its characteristics, Superclean ® steel produced by PESR remelting is especially suited for the manufacture of die-casting molds and other applications requiring mirror polishing. The combination of purity, homogeneity, and chemical precision makes this material perfect for the most demanding needs of modern industry, where a special steel capable of ensuring exceptional performance is essential.

The Pressure Electro-Slag Remelting (PESR) technology by Deutsche Edelstahlwerke (DEW) represents a significant advancement in the production of high-quality special steels. By utilizing an inert and pressurized environment, the PESR remelting process enables the creation of Superclean ® steels with superior chemical and physical properties, meeting the demands of the most critical applications. This article is part of a series of insights into special steel production processes.