ASTM H-Icyumabahinduye inganda zubaka batanga imbaraga zitagereranywa, ubushobozi bwo kwikorera imitwaro, hamwe nigiciro-cyiza.Igishushanyo cyihariye hamwe nibikoresho bifatika bituma umutekano uhinduka mumazu, ibiraro, nibikorwa byinganda.Byongeye kandi, impinduramatwara yabo irenze ubwubatsi, iha imbaraga izindi nganda zifite ibice birambye byubaka.Mugihe isi ikomeje gushakisha ibisubizo bishya byububiko bwububiko n’ibikorwa remezo bihamye, ibyuma bya karuboni H-beam bizakomeza kuba urufatiro mu bijyanye n’ubwubatsi.