1. ** Dab tsi yog API 5L BEND BET cov khoom? **
API 5L Qib B yog ib qib tshwj xeeb ntawm cov roj carbon-manganese steel yeeb nkab txhais los ntawm API 5L cov lus qhia tshwj xeeb. Nws yog ib qho ntawm cov qis dua lub zog nyob rau hauv tus qauv, nrog rau ib qho kev teev tseg tsawg kawg nkaus zog (241 MPA lub zog ntawm 60,000 psi (414 mpa). Nws yog feem ntau siv rau cov ntawv thov qis dua hauv kev thauj mus los ntawm cov roj, roj, thiab dej.
2. ** Yog API 5L X60 Cov Hlau Hlau? **
Yog lawm, API 5L X60 yog hom carbon hlau. Nws poob nyob rau hauv cov carbon thiab carbon-mession cov ntsiab lus (xws li niobium, vanadium, lossis titanium) kom ua tiav nws qib siab dua. Nws thawj cov neeg ua haujlwm yog hlau thiab carbon, nrog tswj cov nyiaj ntawm manganese thiab lwm yam.
3. ** Dab tsi yog API 5L gr b sib npaug rau ASTM? **
API 5L Qib B yog feem ntau suav hais tias feem ntau sib npaug rau ** t t 5 53 qib b ** thiab ** Txawm li cas los xij, nruj sib npaug tsis muaj nyob ua ke los ntawm cov qauv muaj sib txawv (tshuaj lom neeg muaj tshuaj lom neeg, kuaj cov lus qhia). A53 B (Seamless lossis Welded) thiab A106 B (Seamless tsuas) Qhia cov txiaj ntsig zoo kawg nkaus (35,000 PSI 51 MPA
4. ** Dab tsi yog API 5L siv rau? **
API 5L yog qhov tshwj xeeb rau ** Kab Yeeb **. Nws thawj qhov kev siv yog nyob rau hauv kev tsim kho ntawm cov raj xa dej rau thauj ** cov roj av uas muaj roj av, thiab lwm yam dej (zoo li cov neeg nyob deb, ob qho tib si onshore. Nws tseem pom cov ntawv thov hauv kev sib sau ua ke kab (khaws cov khoom lag luam los ntawm qhov dej) thiab qee cov ntawv thov uas nws cov khoom tshwj xeeb yog qhov haum.
5. ** Dab tsi yog qhov sib txawv ntawm API 5L X60 thiab X65? **
Qhov sib txawv thawj ntawm API 5L X60 thiab X65 yog lawv ** Qhov tsawg kawg nkaus tau lees lub zog (smys) **:
* ** API 5L X60: ** muaj ib qho smys ntawm ** 60,000 psi (414 mpa) **.
* ** API 5L X65: ** muaj cov smys ntawm ** 65,000 psi (448 mpa) **.
Qhov ntau tshaj tawm lub zog lub zog hauv x65 tso cai rau cov kav dej yuav tsum tsim nrog ** Txo cov yeeb nkab zoo ib yam li X60 Ua kom tiav lub zog siab dua hauv X65 feem ntau yuav tsum tau siv tshuaj lom neeg thiab / lossis ntau qhov tseem ceeb tshaj plaws microalloying ntxiv piv rau X60.
