Qhov txawv ntawm API 5L GR B thiab A53 GR B yog dab tsi

Thawj qhov sib txawv ntawmAPI 5L Qib BthiabASTM A53 Qib Byog lawvxav thovthiabkev xav tau zoo.

Thaum lawv zoo li yuav luag zoo ib yam thiab feem ntau siv sib hloov hauv qhov qis - qhov chaw siab,API 5Lyog tus qauv nruj dua tsim los rau kev lag luam roj thiab roj, hosASTM A53yog ib qho dav dav - hom phiaj tus qauv rau cov kev pabcuam hauv tsev thiab kev siv tshuab.

Sib piv cov khoom xa tuaj rau API 5L thiab A53?Xa koj cov npe specificationsthiab tau txais cov nqi sib piv rau ob qho tib si hauv 15 feeb.

Daim ntawv thov (Qhov txawv tseem ceeb)

ASTM A53 Qib B:Tsim los raulub hom phiaj dav davsiv hauv chav dej, dej, roj, thiab cua kab. Nws yog cov yeeb nkab txheem uas muaj nyob hauv cov kav dej, HVAC, kev tiv thaiv hluav taws, thiab cov nroj tsuag muaj kev lag luam.

API 5L Qib B:Tshwj xeeb tsim rauthaujroj, roj, thiab dej hauv kev lag luam roj av thiab natural gas. Nws yog tsim los tswj cov kev ntxhov siab ntawm qhov ntev - cov kav dej nyob deb thiab siab - qhov chaw siab.

Hom kev tsim khoom

ASTM A53 B Cov Lus Qhia:Feem ntau muaj nyob rau hauvSeamless (Hom S)thiabERW (Type E). Nws kuj muaj nyob rau hauv Hom F (Lub Rauv Butt-Welded), tab sis qhov no tsis tshua siv niaj hnub no.

API 5L IB:Muaj nyob rau hauv ntau txoj kev tsim khoom, suav nrogSeamless, ERW, LSAW (Longitudinal Submerged Arc), thiab SSAW (kauv Welded). Qhov no tso cai rau API 5L cov kav dej yuav tsum tau tsim nyob rau hauv ntau txoj kab uas hla loj (txog 60 "los yog ntau tshaj) tshaj A53.

Kev Ua Haujlwm Qib (PSL 1 vs. PSL 2)

Qhov no yog ib qho tseem ceeb technical distinction:

ASTM A53 B Cov Lus Qhia:Nws tsuas muaj ib theem ntawm kev ua tau zoo.

API 5L IB:Muab faib ua ob yam khoom Specification Levels:

PSL 1:Kwv yees sib npaug rau A53 Qib B.

PSL 2:Ntau yam nruj dua. Nws xav tauyuav tsum tau kuaj xyuas(toughness), stricter tshuaj muaj pes tsawg leeg txwv, thiab tus kheej traceability ntawm txhua yeeb nkab. A53 tsis tuaj yeem ua tau raws li PSL 2 cov cai.

Galvanization (Zinc Txheej)

ASTM A53 B Cov Lus Qhia:Feem ntau xaj raws liGalvanized(zinc{0}}coated) rau cov kav dej thiab cov kav dej kom tsis txhob xeb.

API 5L IB:Tsis tshua muaj galvanized, raws li nws feem ntau yog coated nrog FBE (Fusion Bonded Epoxy) los yog lwm yam tshwj xeeb coatings rau faus rau hauv cov roj thiab roj pipelines.

Summary Comparison Table

API 5L Carbon Steel Kab Yeeb Nkab Hoobkas

API 5L pipeline rau roj thiab roj Test Equipments

API 5L High Yield Line Pipes Certificate

FAQ

Qhov sib npaug ntawm A53 Qib B yeeb nkab yog dab tsi?

‌Tuam Tshoj: 20 # steel (GB / T 8163) lossis Q235B (GB / T 700)

‌Teb chaws EuropeP235GH (EN 10217-2 / EN 10255)

‌NyivTom ntej: STPG370 (JIS G3454)

‌Lub teb chaws YelemeesQauv: 37.0 (DIN 2448)

‌Teb chaws USAAPI 5L Qib B (L245)

API 5L GR B cov ntaub ntawv qib yog dab tsi?

API 5L GR Byog cov pa roj carbon steel pipeline khoom qib siv dav hauv cov roj, roj, thiab dej xa hluav taws xob, nrog rau qhov tsawg kawg nkaus lub zog ntawm245 MPa rau(kwv yees li 35.5 ksi), cais raws li nruab nrab - zog kab yeeb nkab.

Nws ua raws liAPI SPEC 5LCov txheej txheem thoob ntiaj teb thiab siv rau ob qho tib si seamless thiab welded kav (xws li ERW, SAW), feem ntau muaj nyob rau hauv ob theem khoom specification:

‌PSL1: Cov txheej txheem zoo nrog cov kev xav tau ntawm cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab, haum rau cov kev pabcuam dav dav.

‌PSL2​: Cov qib tshwj xeeb siab dua nrog kev tswj hwm ntawm qhov sib npaug ntawm cov pa roj carbon sib npaug, cuam tshuam rau lub zog (piv txwv li, Charpy V-notch zog Ntau dua lossis sib npaug rau 20J ntawm -20 degree), thiab kev sim tsis muaj kev puas tsuaj, npaj rau kev ua haujlwm hnyav.