Loaʻa nā ʻano helu like ʻole a me nā helu helu pūnaewele e hiki ai i kekahi ke helu maʻalahi i ke kaumaha kila kila.

Hoʻokaʻawale ʻia ke kila kila ma lalo o 5 mau ʻāpana a ʻo kēia ka 200 a me ka 300 series o ke kila kila i ʻike ʻia he austenitic stainless steels.A laila aia ka moʻo 400, ʻo ia nā mea kila kila ferritic.ʻO ka 400 series a me 500 series i kapa ʻia ʻo martensitic stainless steel.A laila aia nā ʻano PH o ke kila kila, ʻo ia ka ua paʻakikī o nā kila kila.

A ʻo ka mea hope loa, aia ka hui ʻana o nā kila kulika ferritic a me austenitic, i ʻike ʻia he mau kila kila duplex.