Mhando dzesimbi dzinoshandiswa mumapombi
Carbon steel
Carbon simbi inokwana 90% yehuwandu hwekugadzirwa kwepombi yesimbi. Izvo zvinogadzirwa kubva kune zvidiki zvidiki zve alloying element uye kazhinji anoita zvisina kunaka kana akashandiswa ega. Sezvo zvivakwa zvavo zvemuchina uye machinability zvakaringana zvakanaka, zvinogona kuderedzwa uye zvinogona kudiwa kune maapplication ane kunyanya kuderera kushushikana. Kushaikwa kwealloying zvinhu kunoderedza kukodzera kwekabhoni simbi kune yakakwirira-kudzvanywa maapplication uye yakaoma mamiriro, saka ivo vanova vasina kusimba kana vakaiswa mitoro yakakura. Chikonzero chikuru chekufarira kabhoni simbi yepombi inogona kunge iri yakanyanya ductile uye hairegi pasi pemutoro. Iwo anowanzo shandiswa muindasitiri yemotokari uye yemugungwa, uye oiri uye gasi kutakura. A500, A53, A106, A252 makabhoni simbi mamakisi anogona kushandiswa seyakasonwa kana isina musono.

Alloyed Steels
Kuvapo kwealloying zvinhu kunonatsiridza ma mechanic properties yesimbi, nokudaro mapaipi anowedzera kurwisana ne-high-stress applications uye high pressure. Izvo zvakanyanya alloying zvinhu nickel, chromium, manganese, mhangura, nezvimwewo izvo zviripo mukuumbwa pakati pe1-50 uremu kubva muzana. Huwandu hwakasiyana hwealloying zvinhu zvinopa kune mechanic uye makemikari zvimiro zvechigadzirwa nenzira dzakasiyana, saka kemikari yesimbi inosiyanawo zvichienderana nezvinodiwa zvekushandisa. Mapaipi esimbi alloy anowanzo shandiswa munzvimbo dzakakwirira uye dzisina kugadzikana dzemitoro, senge muindasitiri yemafuta negasi, inonatsa, petrochemicals, uye zvidyarwa zvemakemikari.

Simbi isina ngura
Stainless Simbi inogona zvakare kukamurwa kuita alloy simbi mhuri. Chinhu chikuru chekubatanidza musimbi isina tsvina ndeye chromium, chikamu chayo chinosiyana kubva pa10 kusvika ku20% nehuremu. Chinangwa chikuru chekuwedzera chromium ndechekubatsira simbi kuwana zvivakwa zvisina tsvina nekudzivirira ngura. Mapombi esimbi asina simbi anowanzo shandiswa mumamiriro ezvinhu akaomarara apo kushomeka kwekuora uye kusimba kwakanyanya kwakakosha, senge mugungwa, kusefa kwemvura, mishonga, uye maindasitiri emafuta negesi. 304/304L uye 316/316L isimbi isina magiredhi inogona kushandiswa mukugadzira pombi. Nepo giredhi 304 ine yakakwirira corrosion kuramba uye kusimba; Nekuda kwekuderera kwayo kabhoni, iyo 316 yakatevedzana ine yakaderera simba uye inogona kusungirirwa.

Galvanized Simbi
Galvanized pipe ipombi yesimbi inobatwa ne layer ye zinc plating kudzivirira kuita ngura. Zinc inovhara inodzivirira zvinhu zvinoora kubva pakuora pombi. Yaichimbova rudzi rwepombi yaizivikanwa zvikuru nokuda kwemitsetse yokugovera mvura, asi nemhaka yebasa uye nguva inoenda mukucheka, kupinza, uye kuisa pombi yemarara, haichashandiswi zvikuru, kunze kwokungoshandiswa zvishoma mukugadzirisa. Idzi mhando dzepombi dzakagadzirirwa kubva 12 mm (0.5 inches) kusvika 15 cm (6 inches) muhupamhi. Iwo anowanikwa mu6 metres (20 tsoka) kureba. Nekudaro, pombi yakabatiswa yekugovera mvura ichiri kuonekwa mumashandisirwo makuru ekutengesa. Chimwe chinhu chakakosha chepombi dzakabatiswa ndeye 40-50 makore ehupenyu. Kunyange zvazvo iyo zinc yakavhara pamusoro uye ichidzivirira zvinhu zvekune dzimwe nyika kubva pakuita nesimbi uye kuisvibisa, kana zvinhu zvinotakura zvikaita ngura, pombi inogona kutanga kupera kubva mukati. Naizvozvo, zvakakosha kutarisa uye kusimudzira mapaipi esimbi ane galvanized pane dzimwe nguva.