Hoʻohana ʻenehana okila kohu ʻolee like me ka hui metallographic hiki ke hoʻokaʻawale ʻia i ʻekolu mau ʻāpana: ferritic stainless steel, martensitic stainless steel, austenitic stainless steel. Hiki iā ia ke ʻano o kēia mau ʻano ʻekolu o ke kila kila (e like me ka mea i hōʻike ʻia ma ka papa ma lalo), akā pono e hoʻomaopopo ʻia ʻo ka martensitic stainless steel ʻaʻole hiki ke welded, akā ma kekahi mau kūlana, e like me ka welding pono e preheated ma hope o ke kuʻi ʻana e kiʻekiʻe ka wela wela no laila ʻoi aku ka paʻakikī o ke kaʻina hana kuʻi. ʻO ka hana maoli ʻana o kekahi mau kila kila martensitic e like me 1Cr13, 2Cr13 a me 2Cr13 a me 45 wili kila a ʻoi aku paha.

ʻO ke kila kuhiliʻole Ferritic kekahi i ke kila kila chrome
ʻO ke kalapona haʻahaʻa haʻahaʻa, anti-atmospheric, nitric acid a me ka saline solution corrosion hiki, kiʻekiʻe ka wela oxidation kū'ē a pēlā aku. Hoʻohana nui ʻia i ka hana ʻana o nā mea kemika i loko o ka ipu, paipu.

ʻO ke kila kila Austenitic he kila kila chrome nickel
Loaʻa i ke kūpaʻa corrosion kiʻekiʻe, ka plasticity maikaʻi, ka weldability maikaʻi a me ka haʻahaʻa haʻahaʻa haʻahaʻa, ʻaʻohe magnetic, maʻalahi e hana paʻakikī. Hoʻohana nui ʻia i ka hana media corrosive i nā ʻāpana, nā ipu, nā paipu, nā mea lapaʻau a me nā kaiapuni anti-magnetic.