API 5L X42 Roj Pipe & API 5L X42 Gas Pipe piav qhia
API 5L X42 steel yeeb nkab rau cov roj thiab roj kev lag luam ua tiav qhov tsawg kawg nkaus lub zog ntawm 290 MPa thiab tensile lub zog Ntau dua los yog sib npaug rau 415 MPa, ua rau nws haum rau nruab nrab - thiab qis - qhov xwm txheej ntawm cov pa roj carbon monoxide kis tau tus mob, xws li cov kav dej sib txuas hauv chav kawm II thiab III ntawm ntug dej hiav txwv.
Cov tshuaj muaj pes tsawg leeg tswj cov pa roj carbon sib npaug hauv qab 0.25%, kom ntseeg tau qis- qhov kub thiab txias (-20℃Charpy cuam tshuam lub zog Ntau dua lossis sib npaug ntawm 27J) thiab tiv thaiv hydrogen sulfide kev nyuaj siab corrosion, ua raws li NACE TM0177 cov qauv.
Tshuaj Formula rau API 5L Gr X42 Yeeb Nkab Khoom
Mechanical Properties Analysis rau X42 Carbon Steel Pipe
Ntau txheej ntawm api 5l qib x42 kav
Raws li API 5L 46th edition, txhua batch ntawm API 5L X42 steel kav yuav tsum tau mus soj ntsuam ntau yam, nrog rau kev ntsuam xyuas hydrostatic (kuaj siab ntawm 1.5 npaug ntawm qhov ntsuas siab), weld X-ray testing, thiab puv -lub cev ultrasonic kuaj. GNEE Group kuj tau qhia txog qhov kev ntsuas qhov nruab nrab ntawm qhov nruab nrab uas muaj peev xwm txheeb xyuas cov vuam tsis xws li me me li 0.5 hli.
Nyob rau hauv cov nqe lus ntawm thib peb - ntawv pov thawj, ntxiv rau tus qauv API monogram ntawv pov thawj, X42M welded kav yuav tsum tau ntawv pov thawj los ntawm thoob ntiaj teb kev faib pawg xws li DNV GL thiab BV, thiab ua raws li Suav thiab thoob ntiaj teb cov qauv nrog rau ISO 3183 thiab GB/T 9711.
