Ipayipi lensimbi elingenamthungo lenziwa ngokubhoboza yonke insimbi eyindilinga, kanti ipayipi lensimbi elingenamthungo wokushisela ngaphezulu libizwa ngokuthi ipayipi lensimbi engenamthungo. Ngokwendlela yokukhiqiza, amapayipi ensimbi angenamthungo angahlukaniswa abe amapayipi ensimbi angenamthungo agingqiwe ashisayo, amapayipi ensimbi angenamthungo agingqiwe abandayo, amapayipi ensimbi adonswa ngokubanda angenamthungo, amapayipi ensimbi angenamthungo akhishwe ngaphandle, kanye nokuxhunywa kwamapayipi. Ngokwesimo se-cross-sectional, amashubhu ensimbi angenamthungo ahlukaniswe abe yizinhlobo ezimbili: amashubhu ayindilinga futhi anomumo okhethekile, futhi amashubhu amise okwesipesheli anezinhlobonhlobo eziyinkimbinkimbi ezifana nesikwele, i-oval, i-triangular, i-hexagonal, i-melon-shaped, efana nenkanyezi, namashubhu acijile. Ubukhulu obukhulu bufika ku-900mm kanti ubukhulu obuncane bungama-4mm. Ngokusetshenziswa okuhlukahlukene, kunamapayipi ensimbi aqinile anezindonga eziqinile namapayipi ensimbi angenamthungo anezindonga ezincane. Amapayipi ensimbi angenamthungo asetshenziswa kakhulu njengamapayipi okumba i-petroleum geological, amapayipi aqhekeka embonini ye-petrochemical, amapayipi abhayela, amapayipi anamanzi, kanye namapayipi ensimbi anesakhiwo esiphezulu sezimoto, ogandaganda, kanye nendiza.

Ipayipi lensimbi elingenamthungo eduze kwepherimitha yesiphambano salo. Ngokwezindlela ezihlukene zokukhiqiza, ihlukaniswe ipayipi eligoqiwe elishisayo, ipayipi eligoqiwe elibandayo, ipayipi elidonswa ngamakhaza, ipayipi elikhishwe ngaphandle, ukugqekeza kwamapayipi, njll., konke okunemithethonqubo yayo yenqubo.

Izinto ezisetshenziswayo zifaka insimbi ejwayelekile nesezingeni eliphezulu ye-carbon structural steel, i-low alloy steel, i-alloy steel, njll.

Ngokwenhloso, ihlukaniswe yaba izigaba ezimbili: inhloso evamile (yamanzi, amapayipi egesi kanye nezingxenye zesakhiwo, izingxenye zemishini) kanye nenhloso ekhethekile (yama-boilers, ukuhlola kwe-geological, ama-bearings, ukumelana ne-asidi, njll.).

Ububanzi bangaphandle bepayipi elingenamthungo eligoqwe elishisayo ngokuvamile bukhulu kuno-32mm, futhi ukujiya kodonga kungu-2.5-200mm. Ububanzi obungaphandle bepayipi lensimbi elingenamthungo elibandayo lingafinyelela ku-6mm, futhi ukushuba kodonga kungafinyelela ku-0.25mm. I-Rolling inokunemba okuphezulu kobukhulu kunokugoqa okushisayo. Ngokuvamile, amapayipi ensimbi angenamthungo enziwe ngezinsimbi eziyi-10, 20, njll., i-alloy structural steels.P5, P9, P11, P22, P91, P92, 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, njll. kwe.10, 20nokunyeamapayipi e-carbon steel angenamthungoasetshenziselwa ikakhulukazi amapayipi adlulisa uketshezi. Ngokuvamile, amapayipi ensimbi angenamthungo asetshenziselwa ukuqinisekisa ukuqina nokuhlolwa kokucaba. Amapayipi ensimbi ashisayo ahanjiswa esimweni esishisayo noma esiphethwe ukushisa; amapayipi ensimbi abandayo ahanjiswa esimweni sokushisa.