Q: He aha te kowiri tira autō?
A: 304 kowiri tira no te austenitic kowiri tira. Ko te Austenite he wahanga, he paku noa ranei ka huri hei martensite i te wa e mahi makariri ana. He aukume te Martensite, no reira ko te tira kowiri he kore aukume, he ngoikore ranei te autō.
Q: Me pehea te tautuhi i nga hua kowiri tira pono?
A: 1. Tautokohia te whakamatautau potion motuhake, ki te kore e rereke te tae, he kowiri tira pono.
2. Tautokohia te wetewete hanganga matū me te tātari hihinga.
3. Tautokohia te whakamatautau auahi hei whakataurite i te taiao whakamahi.
Q: He aha nga tira e tino whakamahia ana?
A: 1.SS201, he pai mo te whakamahi i te taiao maroke, hewari ki te waikura i roto i te wai.
2.SS304, te taiao o waho, te makuku ranei, te kaha o te aukati ki te waikura me te waikawa.
3.SS316, molybdenum tāpiri, atu waikura ātete, rawa pai mō te wai moana me te pāpāho matū.