SIJ Acroni is the largest Slovenian steel producer and among the leading European manufacturers of stainless, wear-resistant, high-strength structural, electrical, special and tool steels. We only use recycled scrap, resulting in one of the lowest carbon footprints in the industry.

We supply high-performance steels for all types of protection applications. Our product brand PROTAC includes premium high-strength and highhardness plates for ballistic and blast protection, as well as deep drawing and rolled homogeneous armor grades. These materials also serve the most demanding industries, such as mining, transportation, and energy.

With advanced heat treatment in an inert atmosphere, we ensure minimal decarburization and homogeneous properties. Waterjet cutting provides clean edges, no heat-affected zones, and lowers the risk of cracking. SIJ Acroni combines metallurgical expertise, flexibility, and certified quality to deliver reliable steel solutions for critical environments.