Dab tsi yog qhov sib txawv ntawm API 5L Qib B thiab X42?
API 5L X42 cov yeeb nkab tseem hu ua L290 Yeeb Nkab (los ntawm ISO 3183), muaj npe los ntawm tsawg kawg los yog 290 MPA.Nws yog qib siab dua qib B qhov uas API 5L muaj ntau cov qib kawm txog X 100, yog li X42 cov yeeb nkab yog qhov qis - qib, thiab nws yuav tsum muaj ntau ntau cov raj xa khoom rau cov roj thiab roj kev kis.
Dab tsi yog cov khoom sib npaug rau API 5L X60?
Thaum tsis muaj ib qho zoo meej ASTM sib npaug rau API 5L X60,ASTM A572 Qib 60yog qhov ze tshaj plaws nyob rau hauv cov nqe lus ntawm lees lub zog. Txog cov ntawv thov tshwj xeeb, nws yog qhov tseem ceeb los xav txog cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv neeg siv cov neeg siv tshuab, thiab npaj siv los txiav txim siab sib npaug zoo.
Dab tsi yog qhov sib txawv ntawm API 5L Gr X60 thiab X65?
Thaum lawv koom nrog tib API 5L txheem, muaj cov ntsiab lus sib txawv ntawm API 5L X60 thiab X65: muab lub zog:API 5L X60: Qhov tsawg kawg nkaus tau lees lub zog yog 60,000 PSI (415 MPA). API 5L X65: Qhov tsawg kawg nkaus tau lees lub zog yog 65,000 psi (450 mpa).
Dab tsi yog qhov ntev ntev rau API 5L?
Kwv yees ntev yuav tsum tau xa hauv kev ua siab ntev+/- 500 hli (+/- 20 nti)Cov. Cov khoom lag luam ntev ntawm API 5L Kab Hlau Yeeb tau raug xaiv ntawm 6 M, 8 m, 9 m, 10 m. Qhov ntev kuj tuaj yeem raug kho raws li cov kev cai tshwj xeeb.
Dab tsi yog qhov roughness ntawm api 5L gr?
Roughness ntawm API 5L Qib B yogtsis txhais, Cov yeeb nkab lag luam tshiab yog kwv yees li 0.0018 hauv x 25.4=0.04572 hli.
