1. ** Dab tsi yog API 5L sib npaug rau Astm? **
API 5L yog qhov tshwj xeeb rau kab yeeb nkab tsim los ntawm American roj av lub koom haum (API). Nws qhov ze tshaj plaws nyob rau hauv Astm cov qauv yog ** ASTM A53 ** (rau kev siv dav dav) thiab ** AVEM A106 ** (rau kev pabcuam kub-). Txawm li cas los xij, API 5L yog ntau tshwj xeeb rau cov roj thiab roj thauj, thaum ASTM cov qauv npog dua cov txheej txheem dav.
2. ** Koj rab yeeb nkab x65 txhais li cas? **
X65 hais txog qib ntawm cov yeeb nkab steel nyob rau hauv API 5L cov lus qhia meej, qhia tau tsawg kawg nkaus lub zog ntawm ** 65,000 psi (448 mpa) **. Nws yog feem ntau siv roj siab roj thiab roj pipelines vim nws qhov sib npaug ntawm lub zog thiab tawv.
3. ** Dab tsi yog api steel yeeb nkab? **
APK steel yeeb nkab hais txog cov kav dej tsim raws cov qauv hauv Asmeskas Cov Khoom Siv Hluav Taws Xob (API), xws li cov yeeb nkab roj av (API Cov kav dej no tau tsim los siv rau hauv cov roj thiab roj kev lag luam, ua kom cov khoom siv tshuaj tshwj xeeb, tshuaj lom neeg, thiab ua haujlwm hauv qab cov xwm txheej xav tau.
4. ** X65 txhais li cas? **
Nyob rau hauv API 5L, ** X65 ** Tsim Daim Yeeb Nkab nrog tsawg kawg ntawm lub zog ntawm ** 65,000 PSI (448 MPA) **. Tus "X" txhais tau high-zog cov ntaub ntawv, thiab tus lej sawv cev rau cov txiaj ntsig lub zog hauv KSI (Kilo-Phaus ib Square Inch). X65 kav yog siv dav hauv nruab nrab-rau-high-high-high-high-high-high-tshuab.
5. ** Dab tsi yog API 5L X60 PSL2 specification? **
API 5L X60 PSL2 qhia meej ib txoj kab yeeb nkab nrog:
- Yam tsawg kawg nkaus paib lub zog muaj zog ntawm ** 60,000 psi (414 mpa) **.
- Ua raws li ** PSL2 (cov khoom lag luam tshwj xeeb 2) **, uas yuav tsum tau tshuaj xyuas cov khoom siv tshuaj lom neeg, piv txwv li kev tshuaj xyuas kev sib cav sib ceg), thiab tsis muaj kev soj ntsuam ntau ntxiv rau PSL1.
- Siv nyob rau hauv cov pej xeem ib puag ncig zoo li ntug dej lossis kev sib kis mob siab rau lub sam thiaj.
(Nco tseg: PSL2 kom ntseeg tau ntau dua rau cov kev pabcuam hnyav.)
