Crimidesa is a private mining corporation, with the industrial operation of a huge potential glauberite deposit in Cerezo de Rio Tirón (Burgos, Spain), from which anhydrous sodium sulphate is obtained. During the process stainless steel AISI 316 is used due to its good performance against diluted sulphuric acid solutions. The constant evolution in the treatment and process of this product makes the use of high strength and resistance corrosion stainless steel crucial.
Another mining process in which stainless steel is significantly involved is small sand sieving. Sand and gravel includes several grain rocks, commonly named aggregates, from tiny dust up to big rock pieces. The system starts with a crushing process where material size is reduced for first time. Stainless steel is the best choice because it is naturally corrosion and erosion resistant without the need for any additional treatment. Furthermore, there are many other advantages, such as its excellent surface finish which results in minimum particle adherence, ductility which helps the mesh to return to its original shape without damage, keeping stainless steel mechanical properties unaltered at high temperatures for far longer than other materials. Acerinox Europa manufacturer of flat products, and long products manufacturer Inoxfil, produce the stainless steel that can be seen in the mining industry.