Ukucaciswa kwe-ASTM A479 kuhlanganisa ibha yensimbi evuthayo futhi ebandayo yensimbi engenasici, kufaka phakathi umjikelezo, isikwele, kanye nobunjwa obukhohlakele noma obukhulu bokwakha imithambo ye-boiler nengcindezelo, njenge-engeli, ama-tees kanye neziteshi. Amabanga amane ensimbi engenasici ayatholakala, kufaka phakathi i-auntenitic, auntenitic-ferritic, amabanga akhethiwe kanye ne-martensitic. Izakhiwo zemishini, njengamandla ashubile, zithela amandla ezithela, ukunwebeka, kanye nobulukhuni, kuzonqunywa ngezinkamba ezifakwe ngaphansi kwezimo ezijwayelekile, ezinomsindo, nokucishwa.