1. Inhloso ejwayelekile yamapayipi ensimbi engenamthungo asongwa kusukela kunsimbi evamile ye-carbon structural, insimbi yesakhiwo se-alloy ephansi noma insimbi yesakhiwo esiyingxubevange ngokuya ngezinto. Isibonelo, amapayipi angenamthungo enziwe ngensimbi ye-carbon steel ephansi njengeNombolo 10 noNo. insimbi ye-carbon steel efana ne-45 kanye ne-40Cr Amapayipi angenamthungo akhiqizwayo asetshenziselwa ikakhulukazi ukukhiqiza izingxenye zomshini ezihlukahlukene kanye nokufakwa kwamapayipi.

2. Amapayipi ensimbi angenamthungo ngezinhloso ezijwayelekile nawo ahlinzekwa ngokuya ngokwakheka kwamakhemikhali kanye nezakhiwo zemishini, futhi ngokusho kokuhlolwa kwe-hydraulic. Amapayipi ensimbi angenamthungo athwala umfutho we-fluid kumele aphumelele ukuhlolwa kwe-hydraulic pressure.

3. Amapayipi angenamthungo anenhloso ekhethekile asetshenziswa kumabhayela, ukuhlola umhlaba, ama-bearings, ukumelana ne-asidi, njll. Njengepayipi lokumba i-petroleum geological.I-API 5CTJ55, K55, N80, L80, P110, Etc, amapayipi aqhekekayo namapayipi okubhayela embonini ye-petrochemical.

Amapayipi ensimbi angenamthungozisetshenziselwa ikakhulukazi izakhiwo ezijwayelekile kanye nezakhiwo zemishini. Izinto zayo ezimele (amabanga): i-carbon steel No. 20, No. 45 steel; ingxubevange yensimbi Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, njll.

Amapayipi ensimbi angenamthungo okuthutha uketshezi ikakhulukazi asetshenziselwa ukuthutha amapayipi oketshezi kubunjiniyela kanye nemishini emikhulu. Izinto ezimele (amabanga) zingama-20, Q345, njll.

Amapayipi ensimbi angenamthungo okucindezela okuphansi nokuphakathiama-boilersasetshenziselwa ikakhulukazi amapayipi athutha uketshezi olunomfutho ophansi nophakathi kuma-boilers ezimboni kanye nama-boilers asekhaya. Izinto ezimele ziyinsimbi engu-10 no-20.

Amapayipi ensimbi angenamthungo weama-boilers anengcindezi ephezuluasetshenziselwa ikakhulukazi izihloko zokuthutha uketshezi olunokushisa okuphezulu kanye nomfutho ophezulu kanye namapayipi endaweni yokuphehla amandla kanye namabhoyili ezitshalo zamandla enuzi. Izinto ezimele i-20G, 12Cr1MoVG, 15CrMoG, njll.

Amapayipi ensimbi angenamthungo weumanyolo onengcindezi ephezuluizinto zokusebenza zisetshenziselwa ikakhulukazi ukuthutha amapayipi amanzi anokushisa okuphezulu kanye nomfutho ophezulu wezinto zokusebenza zikamanyolo. Izinto ezimele ziyi-20, 16Mn,12CrMo, 12Cr2Mo, njll.

Amapayipi ensimbi angenamthungo wokuqhekeka kwe-petroleum asetshenziswa kakhulu kuma-boilers, izinto zokushintsha ukushisa namapayipi okuthutha uketshezi ezitshalweni ezincibilikisa i-petroleum. Izinto zayo ezimele ziyi-15mog, 15CrMoG, 12crmog, njll.

Amapayipi ensimbi angenamthungo amasilinda egesi asetshenziswa ngokuyinhloko ukwenza amasilinda egesi ahlukahlukene kanye ne-hydraulic gas. Izinto zayo ezimele ziyi-37Mn, 34Mn2V, 35CrMo, njll.

Amapayipi ensimbi angenamthungo afakwe emanzini ashisayo asetshenziselwa ama-hydraulic props, asetshenziswa kakhulu ukwenza izisekelo zama-hydraulic, amasilinda namakholomu ezimayini zamalahle, kanye namanye amasilinda namakholomu ama-hydraulic. Izinto zayo ezimele ziyi-20, 45, 27SiMn, njll.

Amapayipi ensimbi angenamthungo adonswa ngokubanda noma agoqeke ngokubanda asetshenziselwa ikakhulukazi izakhiwo zemishini kanye nemishini yokucindezela ikhabhoni, edinga ukunemba kobukhulu obuphezulu kanye nokuqedwa okuhle kwendawo. Izinto zayo ezimele zihlanganisa i-20, i-45 yensimbi, njll.

Amapayipi ensimbi adonswa ngokubanda angenamthungo kanye namapayipi ensimbi anomumo okhethekile asetshenziswa ngokuyinhloko ukwenza izingxenye nezingxenye zesakhiwo ezihlukahlukene. Zenziwe ngensimbi yesakhiwo sekhabhoni ephezulu kanye nensimbi yesakhiwo esine-alloy ephansi.

Amapayipi ensimbi angenamthungo anembile obubanzi bangaphakathi bamasilinda asebenza ngamanzi kanye nawomoya asetshenziswa ngokuyinhloko ukwenza amapayipi ensimbi adonswa ngokubanda noma agoqeke abandayo anobubanzi obunembile bangaphakathi bamasilinda asebenza ngamanzi kanye nawomoya. Izinto zayo ezimele ziyi-20, 45 steel, njll.