He maha ngā tātai me ngā tātaitai ipurangi e taea ai e te tangata te tatau i te taumaha o te maitai kore waikura.

E rima ngā wāhanga o te maitai kore waikura, tae atu ki te raupapa 200 me te 300 o te maitai kore waikura e mōhiotia ana ko ngā maitai kore waikura austenitic. Kātahi ka tae mai te raupapa 400, arā, ko ngā maitai kore waikura ferritic. Ka tae mai te raupapa 400 me te raupapa 500 ko ngā maitai kore waikura martensitic. Kātahi ka tae mai ngā momo maitai kore waikura PH, arā, ko ngā maitai kore waikura taumata whakapakeketanga.

Hei whakamutunga, kei reira te ranunga o ngā maitai kowiri tira ferritic me te austenitic, e mōhiotia ana ko ngā maitai kowiri tira duplex.