API 5L X70 ahịrị ọkpọkọ enweghị nkebi

Ọkụ API 5L X70 bụ ihe ọkpọkọ ọkwa adịchaghị na nkọwa ọkọlọtọ API 5L. A na-akpọkwa ọkpọkọ L485, ebe ọ na-enye ike
kacha nta na 485 Mpa (70,300 psi). API 5L X70 na-ekpuchi ụdị nrụpụta n'ụdị enweghị nkebi na nke welded (ERW, SAW), etinyere ha abụọ.
maka nnyefe mmanụ na gas.

Enwere ike ịkọwa ọkpọkọ ahịrị eriri API X70 dị ka ọkpọkọ igwe nwere ọdịnaya carbon dị elu yana ngwakọta alloying. API 5L X 70 carbon steel enweghị nkebi ọkpọkọ Na mgbakwunye na nchọta ego nke ihe ndị ọzọ dị ka sọlfọ, phosphorus, wdg, alloy ya nwere nnukwu ọdịnaya nke manganese na silicon. Mgbakwunye nke ihe ndị a niile na-enyere aka melite akụrụngwa nke X70 carbon steel pipe.

Enwere ike ịhụ nke a site na ike mkpụrụ dị ala (485 MPa) nke API 5L X70 Class B LSAW tube. Ọ nwekwara ike tensile kacha nta nke 635 MPa. A na-agwọkwa elu nke API 5L X70 SCH 40 DSAW tubes n'ụdị dị iche iche, dị ka nwa, mmanụ anticorrosive, galvanized na-ekpo ọkụ ma ọ bụ oyi-galvanized. Dabere na ojiji nke X70 PSL2 spiral tube, anyị nwere ike ịkwado ọgwụgwọ elu kachasị mma maka ndị ahịa anyị na-akwanyere ùgwù. Dị ka ihe atụ, galvanized mkpuchi na X70 PSL1 ọkwa ọkpọkọ na-egosi magburu onwe corrosion iguzogide.

Ngwakọta kemịkalụ

API 5L GrB X70 PSL 1/2 Njirimara arụrụ arụ