API 5L X52 Pipe yog dab tsi?
API 5L X52 yog qib ntawm steel kab yeeb nkab uas txhais los ntawm American Petroleum Institute specification 5L. Tus X qhia txog qhov tsawg kawg nkaus tawm lub zog ntawm 52,000 psi, muab cov qhab nia nyob rau hauv siab -lub zog qis-alloy tsev neeg. X52 yog tsim nyob rau hauv seamless, ERW, LSAW thiab SSAW cov ntaub ntawv thiab tau teev nyob ib ncig ntawm lub ntiaj teb no rau hydrocarbon kis tau tus mob.
Cov hlau ua tiav nws lub zog los ntawm kev tswj dov thiab microalloying nrog niobium, vanadium thiab titanium, uas ua kom zoo dua cov qauv ntawm cov nplej thiab precipitate hardening theem yam tsis muaj kev nplua weldability ntawm siab carbon.
Cov khoom tseem ceeb
| Khoom | X52 tus nqi |
|---|---|
| Yield zog, min | 358 MPa (52,000 psi) |
| Tensile zog, min | 455 MPa (66,000 psi) |
| Carbon, max rau PSL2 | 0.22% |
| Carbon sib npaug, max | 0.43 |
| Weldability | Zoo nrog cov txheej txheem txheem |
| Tsawg-kub toughness | Muaj los ntawm PSL2 Charpy xeem |
Cov txiaj ntsig rau qhov sib piv tensile yog txwv nyob rau hauv PSL2 kom ntseeg tau tias tus cwj pwm zoo, thiab kev ntsuam xyuas cuam tshuam ntawm qhov ntsuas qhov ntsuas qhov ntsuas tau lees paub qhov ua rau tawg tawg.
Daim ntawv thov thiab qhov zoo
X52 yeeb nkab yog siv nyob rau hauv onshore thiab offshore roj thiab roj kis tau tus mob kab, sib sau ua ke systems, tis networks, dej txhaj kab thiab kev lag luam kua. Nws cov txiaj ntsig tseem ceeb yog lub zog siab - rau - qhov hnyav piv uas tso cai rau cov phab ntsa nyias nyias, kev ua haujlwm zoo hauv kev sib txuas, muaj pov thawj toughness thiab qhov sib npaug txaus nyiam ntawm kev ua tau zoo thiab tus nqi rau nruab nrab thiab siab - kev pabcuam siab.
Kev xaiv xaiv
Xaiv X52 thaum Qib B lossis X42 phab ntsa ua rau tsis muaj kev lag luam tuab, thaum lub zog ua haujlwm siab tshaj qhov muaj peev xwm ntawm qib qis, lossis thaum muaj kev lees paub siab - qib zog yuav tsum tau los ntawm tus qauv tsim. Rau qis- kub thiab siab - tej yaam num kev ncaj ncees, qhia PSL2 nrog rau Charpy ntsuas kub uas yuav tsum tau.
FAQ
Q1. X52 txhais li cas?
X prefix qhia siab -strength kab yeeb nkab thiab 52 qhia qhov tsawg kawg nkaus tawm lub zog ntawm 52,000 psi, sib npaug rau 358 MPa.
Q2. Puas yog X52 muaj zog dua X42?
Yog lawm. X52 muaj qhov tsawg kawg nkaus tawm lub zog ntawm 358 MPa piv nrog 290 MPa rau X42, tso cai rau siab dua los yog nyias phab ntsa hauv tib qhov tsim.
Q3. Qhov siab tshaj carbon ntsiab lus ntawm X52 yog dab tsi?
Rau PSL2, carbon yog txwv rau 0.22 feem pua siab tshaj plaws, nrog rau qhov kev txwv tsawg nyob ntawm tus qauv tsim.
Q4. X52 puas tuaj yeem siv sab nraud?
Yog lawm, X52 tau siv dav hauv ntug dej hiav txwv, feem ntau rau PSL2 nrog Charpy toughness, thiab nrog cov kev pabcuam qaub ntxiv thaum H2S tam sim no.
Q5. X52 welded li cas hauv daim teb?
Txheem cellulosic lossis qis-hydrogen electrodes yog siv nrog cov txheej txheem tsim nyog. Cov pa roj carbon tsawg sib npaug ua rau qhov xav tau preheat me me rau feem ntau phab ntsa thicknesses.
Q6. Yuav tsum xeem dab tsi rau X52 PSL2?
Kev ntsuas tensile, Charpy impact testing, hydrostatic testing, chemical analysis and full-ntev non-destructive test of welded pipe seams.
