I-API 5Liyindinganiso yepayipi lensimbi elisetshenziselwa ukuthutha uwoyela, igesi yemvelo, namanzi. Indinganiso ihlanganisa amazinga amaningana ahlukene ensimbi, lapho i-X42 ne-X52 kuyizigaba ezimbili ezivamile. Umehluko omkhulu phakathi kwe-X42 ne-X52 yizakhiwo zazo zemishini, ikakhulukazi amandla okukhiqiza kanye namandla okudonsa.

X42: Amandla amancane okukhiqiza epayipi lensimbi le-X42 angama-42,000 psi (290 MPa), futhi amandla alo okuthamba asukela ku-60,000-75,000 psi (415-520 MPa). Ipayipi lensimbi lebanga le-X42 livame ukusetshenziswa ezinhlelweni zamapayipi ezinezidingo zokucindezela okuphakathi namandla, ezifanele ukuthutha izinto ezifana namafutha, igesi yemvelo, namanzi.

X52: Amandla amancane okukhiqiza epayipi lensimbi le-X52 angama-52,000 psi (360 MPa), kanti amandla okudonsa asukela ku-66,000-95,000 psi (455-655 MPa). Uma kuqhathaniswa ne-X42, ipayipi lensimbi lezinga le-X52 linamandla aphezulu futhi lifanele izinhlelo zamapayipi ezinezidingo zokucindezela namandla aphezulu.

Ngokuphathelene nesimo sokulethwa,Izinga elijwayelekile le-API 5Licacisa izimo ezahlukene zokulethwa kwamapayipi ensimbi angenamthungo namapayipi ahlanganisiwe:

Ipayipi lensimbi elingenamthungo (isimo se-N): Isimo se-N sibhekisela esimweni sokwelashwa esijwayelekile. Amapayipi ensimbi angenamthungo alungiswa ngaphambi kokulethwa ukuze ahlanganise isakhiwo sepayipi lensimbi, ngaleyo ndlela kuthuthukiswe izakhiwo zalo zomshini kanye nokuqina. Ukwenza kube nokwejwayelekile kungasusa ukucindezeleka okusele futhi kuthuthukise ukuzinza kobukhulu bepayipi lensimbi.

Ipayipi elihlanganisiwe (isimo se-M): Isimo se-M sibhekisela ekwelashweni kwepayipi elihlanganisiwe nge-thermomechanical ngemva kokwakhiwa nokushintshwa. Ngokusebenzisa ukwelashwa kwe-thermomechanical, isakhiwo esincane sepayipi elihlanganisiwe siyathuthukiswa, ukusebenza kwendawo yokushintshwa kuyathuthukiswa, futhi amandla nokuthembeka kwepayipi elihlanganisiwe ngesikhathi sokusetshenziswa kuyaqinisekiswa.

Izinga elijwayelekile le-API 5Licacisa ngokuningiliziwe ukwakheka kwamakhemikhali, izakhiwo zemishini, izindlela zokukhiqiza, izidingo zokuhlola kanye nokuhlola zamapayipi ensimbi epayipi. Ukusetshenziswa kwale standard kuqinisekisa ukuphepha nokuthembeka kwamapayipi ensimbi epayipi lapho kuthuthwa uwoyela, igesi yemvelo kanye nolunye uketshezi. Ukukhethwa kwamazinga afanele amapayipi ensimbi kanye nesimo sokulethwa kungahlangabezana nezidingo ezithile zamaphrojekthi ahlukene obunjiniyela futhi kuqinisekiswe ukusebenza okuzinzile kohlelo lwamapayipi.