Secundum compositionem, in Cr seriem (400 series), Cr-Ni dividi potest series ( 300 series ), Cr-Mn-Ni ( series 200 ), chromium offensionis chalybis resistens ( series 500 ) et systematis praecipitationis obdurationis (600 series).
201: reluctatio pauperum corrosio, late pro vili loco 300 seriei in Sinis adhibita.
304: est in communibus.producta ut: vasis corrosio repugnans, tableware
supellex, cancelli, apparatus medicorum.
316: alterum genus maxime ferro utendum maxime in cibis, industria, horologiis et ornamentis adhibetur;
industria pharmaceutica et chirurgica.
430 : Ferritic ferrum inactum, ad ornatum, exempli causa ad currus fortia.Bona forma, sed pauper
temperatura resistentia et corrosio resistentia.