Material non-being hardened, magnetic. Machinability slightly below the martensitic stainless steels.
Corrosion resistance: greater than the martensitic stainless steel. Good resistance to mineral acids means (nitric above 70 ° C, cold H2SO4 mixtures, dilute phosphoric acid), organic acids (acetic above 50 ° C, formic, citric and tartaric acid at room temperature), cold saline solutions and warm ( ammonium sulfide, Al, Fe, chromate, chloride, permanganates).
Food: ferritic steels are preferred to martensitic when you do not need high hardness.
atmospheric corrosion: good resistance in rural and urban environment, it is less suitable for marine and industrial environments.
Sea water: good resistance, susceptible to corrosion alvânica Copper alloys