Txhais thiab Standard
API 5L X52 PSL2 yog lub siab - lub zog kav dej yeeb nkab ua tau raws li API 5L tus qauv, tsim los rau lub siab - siab kis ntawm cov roj, roj, thiab lwm yam kua. Nws belongs rau PSL2, cov khoom specification theem 2, nws cov tshuaj muaj pes tsawg leeg, mechanical zog, thiab kev soj ntsuam yuav tsum siab tshaj cov PSL1.
Cov yam ntxwv tseem ceeb
Tshuaj muaj pes tsawg leeg: cov ntsiab lus ntawm carbon, manganese, phosphorus, sulfur, thiab lwm yam yog nruj me ntsis tswj, thiab microalloying ntsiab xws li vanadium, niobium, thiab titanium txhim khu lub zog thiab toughness. Cov khoom siv tshuab: yuav tsum muaj zog tensile thiab tawm los, txheeb xyuas los ntawm hydrostatic, dabtsi yog khoov, thiab Charpy cuam tshuam kev ntsuam xyuas, nrog rau qhov siab tshaj plaws lub zog txwv thiab ib tug yield - rau- tensile ratio cap ntawm 0.93, thiab cov ntawv thov scenarios muaj peev xwm tiv taus siab siab thiab qis - qhov kub thiab txias.
Daim ntawv thov
X52 PSL2 yog siv rau ntev - cov kav xa hluav taws xob thiab cov roj xa mus, xws li cov kav dej ntawm cov kav dej ntawm ntug dej hiav txwv thiab sab ntug dej hiav txwv, thiab nyob rau hauv siab - qhov chaw muaj kev pheej hmoo suav nrog cov xov xwm corrosive uas muaj sulfides lossis daim ntawv thov uas yuav tsum tau qis - qhov kub thiab txias. Nws yog qib ib txwm rau kev sib kis hauv cheeb tsam thiab kev sib sau ua ke uas PSL2 zoo tau teev tseg.
Qhov sib txawv ntawm PSL1
Cov kev cai tsim khoom: PSL2 yuav tsum ua kom tau raws li tag nrho cov kev cai yooj yim ntawm PSL1 thiab, ntxiv rau, siv cov kev nruj dua uas tsis yog-kev kuaj kev puas tsuaj xws li kev kuaj xyuas qhov tsis zoo ntawm ultrasonic thiab qhov yuav tsum tau muaj kev cuam tshuam toughness kuaj. Cov qauv kev ua tau zoo: kev tswj nruj dua ntawm elongation, toughness, thiab impurity cov ntsiab lus ua kom muaj kev ntseeg siab nyob rau hauv kev ntxhov siab lossis ib puag ncig huab cua.
Kev tsim khoom thiab kev sim
Cov txheej txheem ntau lawm suav nrog cov yeeb nkab tsis sib haum los ntawm kev kub dov lossis txias txias thiab welded yeeb nkab los ntawm txoj hlua ncaj nraim submerged arc vuam lossis kauv vuam. Kev sim cov khoom xws li hydrostatic, flattening, thiab cov kev ntsuam xyuas cuam tshuam yog qhov yuav tsum tau ua, thiab tag nrho cov traceability ntawm txhua cov yeeb nkab ntev yog khaws cia.
Cov lus nug nquag
Q: PSL2 ntxiv li cas rau PSL1?
A: Kev ntsuas qhov yuav tsum tau ua, txwv lub zog siab tshaj plaws, CE tswj, qis sulfur, tag nrho NDT, thiab traceability.
Q: Lub zog tawm ntawm X52 yog dab tsi?
A: 359 MPa yam tsawg kawg nkaus, txog 52,000 psi.
Q: X52 PSL2 siv qhov twg?
A: Ntev -cov kav dej thiab cov roj thiab cov roj thiab cov qaub lossis qis - qhov kev pabcuam kub.
Q: Qhov kev xeem twg yog qhov yuav tsum tau ua?
A: Hydrostatic, flattening, cuam tshuam, thiab tag nrho weld seam NDT.
Q: Puas yuav tsum tau kuaj xyuas?
A: Yog, yuav tsum tau ua rau txhua qib PSL2.
Q: Dab tsi yog qhov yield -rau-tensile ratio txwv?
A: 0.93 hli.
Rau API 5L X52 PSL2 yeeb nkab hais,tiv tauj peb pab neeg muag khoom.
