Como su nombre indica tienen una configuración metalográfica ferrítica que se mantiene estable desde la Ambient temperature hasta el Melting point. El cromo inhibe la formación de Austen y provoca la formación de ferrita. These steels are essentially alloys with chromium, cuyo contenido está habitualmente dentro del Rank de 10,5% at 30%, but with limited carbon content by 0,08% regarding martensitic. Some grades may contain molybdenum, silicon, aluminum, titanium and niobium that confer different characteristics.
Estos aceros inoxidables representan una parte de la Series AISI 400. Its features are as follows:
• Corrosion resistant moderate to good, which increases with the chromium content and molybdenum alloys in some.
• Hardened moderately cold work; can not be hardened by heat treatment.
• The ferritic alloys are magnetic.
• Its weldability is poor so unions generally limited to welding thin gauge.
• Usualmente se les aplica un tratamiento de Annealing con lo que obtienen mayor suavidad, ductility and corrosion resistance
ferritic
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