Iityhubhu zentsimbi ezingenamthungo zisetyenziswa kakhulu.
1. Iityhubhu zensimbi ezingenamthungo ngeenjongo eziqhelekileyo zigqitywe yintsimbi eqhelekileyo ye-carbon structural, i-alloy low structural steel okanye i-alloy structural steel, kunye nemveliso enkulu.Zisetyenziswa ikakhulu njengemibhobho okanye iinxalenye zesakhiwo sokuhambisa ulwelo.
2, ngokusetyenziswa kweendidi ezahlukeneyo zokubonelela:
A. Ngokokwakheka kweekhemikhali kunye neempawu zoomatshini;
B. Ukubonelela ngokweempawu zoomatshini;
C. Ukubonelela ngokovavanyo lwe-hydrostatic.Imibhobho yentsimbi ebonelelwe kwiiklasi u-a kunye no-b iya kuvavanywa kwakhona nge-hydrostatic ukuba isetyenziselwa ukumelana noxinzelelo lolwelo.
I-3, injongo ekhethekileyo ityhubhu engenamthungo enebhoyila ityhubhu engenamthungo, amandla ekhemikhali kunye, umbhobho wentsimbi ye-geological seamless kunye ne-petroleum engenamthungo njalo njalo.
Umbhobho wentsimbi ongenamthungo unecandelo elinqamlezileyo elinomgongxo, inani elikhulu elisetyenziselwa ukuhambisa imibhobho yolwelo, efana nokuhambisa ioyile, irhasi yendalo, irhasi, amanzi kunye neminye imibhobho yemathiriyeli eqinileyo.Xa kuthelekiswa nentsimbi eqinileyo efana nentsimbi engqukuva, umbhobho wentsimbi unokugoba okufanayo kunye namandla ajikelezayo kwaye ulula ngobunzima.Luhlobo lwentsimbi yecandelo lomnqamlezo loqoqosho.