API 5L Txuj
API 5L yog tus qauv tseem ceeb thoob ntiaj teb rau L360 kab yeeb nkab. Cov txheej txheem tau tsim los ntawm American Petroleum Institute thiab npog cov kev xav tau rau kev tsim khoom, tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev thiab kev ntsuas cov kav dej siv hauv kev lag luam roj thiab roj.
Chemical composition xav tau
Raws li API 5L tus qauv, cov tshuaj muaj pes tsawg leeg ntawm L360 kab yeeb nkab yuav tsum tau ua raws li cov kev cai tshwj xeeb. Ntawm lawv, cov ntsiab lus carbon yuav tsum nyob nruab nrab ntawm 0.26% thiab 0.31%, cov ntsiab lus silicon yuav tsum tsis pub tshaj 0.40%, thiab cov ntsiab lus manganese yuav tsum nyob nruab nrab ntawm 1.40% thiab 1.65%. Tsis tas li ntawd, muaj kev tswj xyuas cov ntsiab lus alloying xws li titanium, vanadium, thiab niobium los txhim kho lub zog thiab corrosion kuj ntawm cov yeeb nkab kab.
Mechanical Property Requirements
Cov khoom siv kho tshuab ntawm L360 kab yeeb nkab yog ib qho ntawm nws cov yam ntxwv tseem ceeb. Raws li API 5L tus qauv, qhov tsawg kawg nkaus lub zog ntawm L360 kab yeeb nkab yog 390MPa (56,600 psi) thiab lub zog tensile yam tsawg kawg nkaus yog 490MPa (71,100 psi). Tsis tas li ntawd, nws tseem yuav tsum tau ua kom tau raws li qee qhov kev cuam tshuam toughness thiab ductility yuav tsum tau hloov mus rau qhov chaw ua haujlwm nyuaj thiab kev ntxhov siab.
Dimensions thiab xeem yuav tsum tau
API 5L tus qauv kuj tseem qhia txog qhov ntev thiab kev xeem yuav tsum tau ua rau L360 kab yeeb nkab. Muaj cov kev cai meej rau sab nraud, phab ntsa thickness thiab ntev ntawm cov kab yeeb nkab. Nyob rau tib lub sijhawm, yuav tsum muaj ntau yam kev ntsuam xyuas, suav nrog kev tshuaj xyuas tshuaj lom neeg, tshuaj xyuas cov cuab yeej cuab yeej, kev sim cuam tshuam, thiab lwm yam, kom ntseeg tau tias kev ua tau zoo thiab kev nyab xeeb ntawm cov yeeb nkab kab.
Cov ntsiab lus
Hauv cov ntsiab lus, tus qauv thoob ntiaj teb rau L360 kab yeeb nkab feem ntau yog API 5L tus qauv. Cov qauv no suav nrog cov kev xav tau rau kev tsim khoom, tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev thiab kev ntsuas cov kav dej. Los ntawm kev ua raws li cov qauv no, qhov zoo, kev ntseeg siab thiab kev nyab xeeb ntawm L360 kab kav dej tuaj yeem lav tau, ntxiv kev txhawb nqa kev loj hlob ntawm cov roj thiab roj tsheb thauj mus los.
L360Q High yield kab yeeb nkab
