Ni gbogbogbo, irin alagbara austenitic ko ni oofa.Ṣugbọn martensite ati ferrite ni oofa.Sibẹsibẹ, austenitic le tun jẹ oofa.Awọn idi ni bi wọnyi:

Nigbati o ba ni idaniloju, oofa apakan le lọ kuro nitori diẹ ninu awọn idi didan;mu 3-4 fun apẹẹrẹ, 3 si 8% iyokù jẹ iṣẹlẹ deede, nitorina austenite yẹ ki o jẹ ti kii-magnetism tabi oofa alailagbara.

Irin alagbara Austenitic kii ṣe oofa, ṣugbọn nigbati apakan γ ipele ba n ṣe ipilẹṣẹ sinu ipele martensite, magnetism yoo ṣe ipilẹṣẹ lẹhin lile tutu.Ooru itọju le ṣee lo lati se imukuro yi martensite be ati ki o mu pada awọn oniwe-ti kii-magnetism.