He poto te Kowiri tira mo te rino kowiri tira waikawa. E kiia ana ko te kowiri tira me te reo korowha ngoikore, te kowiri tira ranei, penei i te hau, te mamaoa me te wai. Ko te ahua o te rino e whakakino ana i te matū pirau (waikawa, alkali, tote, me etahi atu) ka kiia ko te rino aukati waikawa.
E ai ki te mana whakahaere, ka taea te wehea ki te martensitic steel, ferritic steel, austenitic steel, austenite – ferrite (waahanga rua) he kowiri tira me te uara whakapakeke kowiri tira. I tua atu, ka taea te wehewehe ki te kowiri tira chromium, chromium nickel kowiri tira me te chromium manganese hauota kowiri tira kia rite ki tona waahanga.
Ko te kupu “kowiri tira” ehara i te mea he kowiri tira parakore engari neke atu i te kotahi rau nga momo umanga kowiri tira. Na te whanaketanga o ia kowiri tira he pai te mahi i roto i o raatau tono motuhake. No reira, ko te mahi tuatahi ko te kimi i te whakamahinga, katahi ka whakatau i te momo maitai tika i runga i nga ahuatanga o ia momo kowiri tira.
Na te pai o te aukati i te waikura, te hototahi me te ductility kaha i roto i te whānuitanga o te pāmahana, he mea tino pai te kowiri tira mo nga kaiwhakarato hiri.
