The particularities of stainless steels

This article discusses stainless steels, known as austenitic-ferritic. Discovered in the 1930s, they are biphasic alloys with a 50% α (ferrite) and 50% γ (austenite) structure, obtained through a specific chemical composition including carbon, chromium, and nickel. They are produced in an electric furnace followed by a refining process, ensuring the reproducibility of chemical compositions. These steels have mechanical characteristics superior to austenitic stainless steels, particularly in tensile strength and yield strength. They are suitable for the chemical industry due to their resistance to corrosion and abrasion, especially within a temperature operating range between -50°C and +300°C.