Ibyuma bitagira umuyonga ni bigufi kubwibyuma birwanya aside.Yitwa Icyuma kitagira umuyonga gifite imbaraga zangirika cyangwa icyuma kitagira umwanda, nk'umwuka, umwuka n'amazi.Ubwoko bwibyuma byangiza imiti yangiza imiti (aside, alkali, umunyu, nibindi) byitwa ibyuma birwanya aside.
Ukurikije uko ishyirahamwe rihagaze, irashobora kugabanywamo ibyuma bya martensitike, ibyuma bya ferritike, ibyuma bya austenitike, austenite - ferrite (icyiciro cya kabiri) ibyuma bitagira umwanda hamwe n’imvura ikomera ibyuma bitagira umwanda.Byongeye kandi, irashobora kugabanywamo ibyuma bya chromium bitagira umuyonga, chromium nikel ibyuma bitagira umuyonga hamwe na chromium manganese azote ibyuma bitagira umwanda ukurikije ibiyigize.
Ijambo "ibyuma bidafite ingese" ntabwo ryerekeza gusa ku byuma bitagira umwanda ahubwo ni ubwoko burenga ijana bwinganda zidafite ingese.Kandi iterambere rya buri cyuma kidafite ingese gifite imikorere myiza mubikorwa byihariye.Kubwibyo, intambwe yambere ni ukumenya imikoreshereze, hanyuma ukamenya ubwoko bwibyuma bikwiye ukurikije ibiranga buri bwoko bwibyuma.
Bitewe nubwiza buhebuje bwo kwangirika, guhuza no guhindagurika gukomeye mubushyuhe bwubushyuhe, ibyuma bitagira umwanda nabyo ni ibikoresho byiza cyane kubatanga kashe.
