Irin alagbara, irin iran pipe ni a irú ti gun irin pẹlu ṣofo apakan ko si si pelu ni ayika. O jẹ paipu irin ti o ni agbara si alailagbara alailagbara bii afẹfẹ, ategun ati omi ati kemikali ibajẹ alabọde bii acid, alkali ati iyọ. Tun mo bi alagbara, irin sooro, irin pipe. Gẹgẹbi ipilẹ irinlographic oriṣiriṣi ti irin alagbara, irin, o le pin si paipu ferritic ologbele martensitic alagbara, irin pipe, paipu irin alagbara martensitic, paipu irin alagbara austenitic, paipu irin alagbara irin, ati bẹbẹ lọ.