Ukuntuleka komthungo oweldiweyo kususa iphuzu elibuthakathaka kakhulu kuphayipha. Lokhu kubangela isakhiwo esihlangene esinamandla alinganayo nxazonke, okwenza amapayipi angenamithungo alungele izicelo ezinengcindezi ephezulu, izinga lokushisa eliphezulu, nezicelo ezibalulekile (isibonelo, ukukhiqiza amandla, ukuhlola uwoyela negesi, izinhlelo ze-hydraulic).

Ngaphandle komugqa oweldiweyo, akukho ingozi yokwehluleka komthungo, ukukhubazeka okuyindilinga, noma ubuthakathaka bendawo ethinteke yikushisa. Ukufana okuzenzakalelayo kunciphisa kakhulu ingozi yokuqhekeka, ukuqhekeka, nokuhlephuka, kuqinisekisa ukuphepha nokuthembeka okukhulu ezimweni ezidingekayo.

Inqubo yokukhiqiza (njengokukhipha noma ukubhoboza) ivumela ukulawula okuhle kakhulu phezu kobukhulu bodonga nokugxilisa. Ubukhulu bodonga bufana kakhulu nalawo amapayipi anomthungo, okubalulekile ekucubunguleni okunembayo, izicelo zesakhiwo, nokuhamba okungaguquguquki koketshezi.

Amapayipi angenamthungo angakhiqizwa cishe kunoma iyiphi i-alloy (i-carbon steel, i-stainless steel, i-alloy steel, i-nickel alloys, njll.). Ngenkathi kukhona imingcele esebenzayo, angakhiqizwa ngobubanzi obuningi kakhulu futhi anezindonga ezijiyile kakhulu, okunzima noma okungenakwenzeka ukukuthola ngezindlela zokushisela.

Isakhiwo sezinto ezifanayo, esingenazo izinto ezishiselwe, ukungcola, noma izinguquko zokuhlanganisa ezihambisana nokushisela, kuvame ukunikeza ukumelana nokugqwala okungcono nokufanayo. Lokhu kubalulekile ekucubunguleni amakhemikhali, ezindaweni zasolwandle, nasezindaweni ezonakalisa kalula.

Inqubo engenamthungo ngokuvamile ikhiqiza indawo engaphakathi ebushelezi enomgodi olinganayo. Lokhu kunciphisa ukulahlekelwa ukungqubuzana (ukwehla kwengcindezi) ekuhambeni koketshezi, kunciphisa ukudideka, futhi kunciphisa amathuba okwakheka kwezinto noma ukubeka imfucumfucu.

Kwizicelo ezibandakanya ukulayisha okukhulu okujikelezayo, amandla aphezulu okugoba, noma izinga lokushisa eliphansi kakhulu, izakhiwo ze-isotropic (ezilinganayo kuzo zonke izinkomba) zamapayipi angenamthungo ziyenza ibe yisinqumo esikhethiwe.

Ngokufingqa, izinzuzo eziyinhloko zamapayipi angenamthungo zivela ekuqinisweni kwawo, ukulingana, namandla. Ayisilinganiso sokusebenza, ukuphepha, nokwethembeka kuzicelo zezimboni nezemishini eziyinselele kakhulu.