I. Kev Sib Piv ntawm Cov Yam Ntxwv thiab Cov Zoo ntawm Peb Tus Qauv rau Cov Kav Hlau Tsis Muaj Qhov Txuas

API 5LCov yeeb nkab kab yog tsim tshwj xeeb rau kev thauj roj thiab roj av. Nws muaj ob qib, PSL1 thiab PSL2, thiab muaj ntau qib hlau nrog cov kev cai nruj heev rau kev cuam tshuam thiab kev kuaj tsis ua puas tsuaj. Nws cov txiaj ntsig suav nrog kev ua kom zoo heev thaum kub qis thiab weldability, ua rau nws haum rau qhov chaw thauj mus los siab thiab dav lees paub los ntawm kev lag luam roj thoob ntiaj teb.

ASTM A53yog ib lub yeeb nkab hlau carbon uas siv dav dav, muaj ob qib, A thiab B. Nws muaj cov kev xav tau ntawm cov tshuaj lom neeg yooj yim thiab cov kev xav tau ntawm cov khoom siv kho tshuab nruab nrab. Nws cov txiaj ntsig suav nrog kev siv nyiaj tsawg, kev ua haujlwm zoo, ntau yam kev siv, thiab kev muag khoom ntau.

ASTM A106yog tsim tshwj xeeb rau kev pabcuam kub thiab muaj peb qib, A, B, thiab C. Nws muaj cov pa roj carbon ntau dua, kev ua haujlwm kub zoo heev, thiab kev tiv taus oxidation zoo, ua rau nws haum rau cov chaw kub xws li cov chaw tsim hluav taws xob boilers. Nws kuj muaj zog dua li A53.

II. Kev Tshawb Fawb Txog Cov Xwm Txheej Siv

API 5L feem ntau yog siv rau hauv cov kav dej roj thiab roj av, cov kav dej sib sau ua ke, thiab cov tes hauj lwm roj hauv nroog. Nws tsim nyog rau qhov chaw siab, kub qis, thiab corrosive, tab sis tsis haum rau cov ntawv thov dav dav. ASTM A53 tsim nyog rau cov ntawv thov tsis tseem ceeb ntawm qhov kub thiab txias ib txwm muaj, xws li cov qauv tsev, kev tsim tshuab, kev thauj mus los kua qis, thiab kev ywg dej ua liaj ua teb. Nws tsis haum rau cov ntawv thov nrog qhov kub thiab txias, siab, lossis qhov kub qis. ASTM A106 tsim nyog rau qhov kub thiab txias, siab siab, xws li cov chaw ua hluav taws xob boilers, superheaters, cov khoom hloov pauv cua sov, thiab cov kav dej ua haujlwm kub thiab txias. Nws tsis haum rau qhov chaw kub qis lossis cov xov xwm corrosive heev.

III. Kev Tshawb Fawb Txog Kev Lag Luam Thoob Ntiaj Teb

Cov qauv kev xa khoom tuaj ntawm xyoo 2020 txog 2023 qhia txog kev loj hlob txhua xyoo nruab nrab ntawm 4.2% hauv API 5L xa khoom tuaj, 3.8% txo qis hauv A53 xa khoom tuaj, thiab ruaj khov A106 xa khoom tuaj. Qhov feem pua ​​ntawm cov hlau xa khoom tuaj zoo tau nce mus txog 35%.

IV. Cov Kev Zoo Sib Tw ntawm Tuam Tshoj Cov Yeeb Nkab Hlau Xa Tawm

Tuam Tshoj txoj kev xa tawm cov yeeb nkab hlau muaj txiaj ntsig zoo thoob plaws tag nrho cov saw hlau kev lag luam. Raws li lub hauv paus tsim hlau loj tshaj plaws hauv ntiaj teb, Tuam Tshoj muaj cov khoom siv raw khoom tiav thiab cov saw hlau kev lag luam tiav los ntawm kev ua hlau mus rau kev ua tiav tob. Hais txog lub peev xwm tsim khoom thiab thev naus laus zis, Tuam Tshoj muaj peev xwm tsim cov yeeb nkab seamless txhua xyoo tshaj 20 lab tons. Lub tuam txhab muaj cov thev naus laus zis tsim khoom rau cov hlau qib siab xws li X80 / X90, thiab muaj cov tshuab raj txuas ntxiv mus tas li ntau tshaj plaws hauv ntiaj teb. Hais txog kev siv nyiaj txiag zoo, cov nqi ua haujlwm yog kwv yees li ib feem peb ntawm cov nyob hauv Tebchaws Europe thiab Tebchaws Meskas, ua rau muaj txiaj ntsig zoo dua 15-20% ntawm cov nqi los ntawm kev lag luam ntawm qhov ntsuas, thiab cov voj voog xa khoom yog 30% sai dua li qhov nruab nrab thoob ntiaj teb.

Tuam Tshoj txoj kev lag luam yeeb nkab hlau suav txog li 45% ntawm kev lag luam yeeb nkab seamless thoob ntiaj teb, nrog ntau dua 60% feem ntawm kev lag luam hauv Middle East thiab 70% ntawm kev lag luam nruab nrab thiab qis hauv Southeast Asia. API 5L suav txog 55% ntawm nws cov khoom xa tawm, thaum A53 / A106 suav txog li 30%, nrog rau qhov sib piv ntawm cov khoom muaj nqis ntxiv nce txhua xyoo.

V. Cov Lus Qhia Txog Kev Ua Haujlwm

Hais txog txoj kev npaj yuav khoom, cov haujlwm roj thiab roj av yuav tsum muab qhov tseem ceeb rauAPI 5L PSL2cov khoom lag luam. Rau cov ntawv thov dav dav, A53 muab qhov sib piv zoo tshaj plaws ntawm tus nqi-kev ua tau zoo, thaum A106 Qib B lossis siab dua yog qhov tseem ceeb rau cov ntawv thov kub siab. Thaum xaiv tus neeg muag khoom, xyuas cov ntawv pov thawj raug cai, ntsuas qhov muaj peev xwm tswj kev tsim khoom tiag tiag, tshuaj xyuas qhov kev ua tau zoo ntawm qhov project loj, thiab tsom mus rau lub Hoobkas cov peev xwm kuaj NDT. Thaum ua haujlwm nrog cov neeg muag khoom Suav, nws raug pom zoo kom xaiv cov tuam txhab ua lag luam nrog kev paub txog kev xa khoom, qhia meej txog cov qauv kev cai, muab qhov tseem ceeb rau kev npaj tshuaj xyuas sab nraud, thiab siv lawv cov peev xwm hloov kho tau yooj yim.