u'amea u'amea u'amea o se ituaiga u'amea laupepa e faia i le u'amea u'amea, lea ei ai uiga o le corrosion teteʻe, vevela teteʻe, ofuina teteʻe ma mea lelei masini.O loʻo faʻaaogaina lautele le uʻamea uʻamea i le fausiaina, taʻavale, eletise, vailaʻau, gaosiga o meaʻai ma isi fanua, o se mea uʻamea taua.
u'amea uamea e masani ona gaosia e u'amea u'amea e ala i ta'avale malulu, ta'avale vevela ma isi faiga.E tusa ai ma le tuʻufaʻatasiga ma uiga faʻatulagaina o le uamea, e mafai ona vaevaeina taʻavale uʻamea masani i le faasologa o loʻo i lalo:
Ferritic u'amea u'amea u'amea: e masani ona aofia ai chromium ma uʻamea, togi masani e 304, 316 ma isi.E lelei le corrosion teteʻe ma mea tau masini ma e masani ona faʻaaogaina i vailaʻau vailaʻau, gaosiga o meaʻai ma isi fanua.
Austenitic uʻamea uʻamea uʻamea: e masani ona aofia ai chromium, nickel ma uʻamea, togi masani o 301, 302, 304, 316 ma isi.E sili ona lelei le fa'afefeteina o le corrosion, faigata ma le fa'aogaina o le fa'aogaina, ma e masani ona fa'aaogaina i le gaosiga o va'a mamafa ma paipa.
Ferritic-austenitic u'amea u'amea lola: ua ta'ua foi o le duplex u'amea u'amea lola, e aofia ai ferritic ma austenitic vaega, togi masani 2205, 2507 ma isi.Faʻatasi ai ma le malosi maualuga ma le faʻafefeteina, e faʻaaogaina lautele i le inisinia o le gataifale, masini vailaʻau ma isi fanua.