API 5L X46 PSL1 Seamless Kab Pipe piav qhia
API 5L yog cov yeeb nkab steel qauv tsim los ntawm American Petroleum Institute (API), muaj feem xyuam rau kev thauj mus los ntawm cov kua dej xws li roj thiab roj. X46 yog ib qho ntawm nws cov qib steel, sawv cev rau qhov tsawg kawg nkaus lub zog ntawm 46,000 psi (kwv yees li 317 MPa).
Qhov sib npaug ntawm qhov muaj zog thiab tawv : X46 qib muaj lub zog tawm los nruab nrab, muaj peev xwm tiv taus lub siab sab hauv los ntawm kev thauj cov kua dej thaum muab kev cuam tshuam zoo heev, ua rau nws haum rau nruab nrab - thiab siab - cov kav dej siab.
Weldability: Cov hlau muaj pes tsawg leeg tau ua kom zoo kom txo qis kev tawg thaum lub sij hawm vuam, ua kom yooj yim rau ntawm - qhov chaw sib txuas.
Corrosion Resistance: Txheej txheej los yog cathodic tiv thaiv cov txheej txheem tuaj yeem txhim kho corrosion kuj, ncua kev pab cuam lub neej.
API 5L X46 PSL1 Pipeline specification
API 5l X46 Mechanical Properties
API 5l X46 Chemical Composition
Kev Xeem Xeem:
Khoov Test:Tsis muaj kab nrib pleb yuav tsum tshwm sim nyob rau hauv ib feem ntawm cov qauv los yog qhib weld.
Kev ntsuam xyuas flattening:Flattening xeem siv los ua pov thawj cov yeeb nkab ua yeeb yam hauv qab deformation. Nws yuav tsum tau qhia qhov tsis kam mus rau longitudinal cracking thiab circumferential cracking, nrog rau sab hauv thiab sab nraud tsis xws luag.
Nws yuav tsum tau perfored rau ERW kav uas diameters saum 12.75 nti;
Rau cov kav dej OD / WT> 10, yuav tsum tsis txhob qhib qhov vuam ua ntej qhov kev ncua deb ntawm daim hlau yog tsawg dua 30% ntawm qhov qub OD.
Kev taw qhia- khoov kuaj:tawg tag; Tshaj tawm cov kab nrib pleb lossis ruptures nyob rau hauv lub vuam hlau ntev tshaj 3.2 hli, tsis hais qhov tob. Los yog nthuav tawm hauv niam txiv hlau, HAZ lossis fusion kab ntev dua 3.2mm lossis tob dua 12.5% ntawm phab ntsa tuab.
Hydrostatic Test:100% hydrostatic test tsis muaj to los ntawm cov vuam seam lossis cov yeeb nkab lub cev xav tau. Kev sib txuas lossis cov pob qij txha tsis tas yuav tsum tau kuaj hydrostatic yog tias cov yeeb nkab siv tau raug sim ua tiav.
CVN Impact Test:(Yuav tsum tau PSL2 yeeb nkab, rau seamless yuav tsum tau sim nrog cov yeeb nkab lub cev, rau welded kev ntsuam xyuas nrog rau cov yeeb nkab lub cev, weld seam thiab tshav kub- cuam tshuam zon HAZ xeem) Feem ntau cuam tshuam qhov ntsuas kub 0℃.
DWT xeem:(Yuav tsum tau rau PSL2 yeeb nkab)
