L245 PSL2 Carbon Steel Kab Yeeb

1. L245 - Qib Qib

"L"sawv rauKab Yeeb. Qhov no tam sim ntawd qhia peb txog kev npaj siv cov hlau.

"245"hais txog covYam tsawg kawg nkaus Yield Strengthntawm cov hlau. Chav tsev yog Megapascals (MPa). Yog li, L245 steel muaj qhov tsawg kawg nkaus tawm lub zog ntawm245 MPa rau.

Yield Strength yog dab tsi?Nws yog qhov siab tshaj plaws cov khoom siv tuaj yeem tiv taus yam tsis muaj deformation mus tas li. Rau siab - cov kav xa dej siab, qhov no yog cov cuab yeej tseem ceeb.

Hauv Imperial Units:245 MPa yog kwv yees li35,500 psi. Tej zaum koj yuav pom qib no hu uaQib Bhauv cov laus lossis API 5L- cov ntsiab lus tshwj xeeb, vim nws yog qhov sib npaug ncaj qha.

2. PSL2 - Khoom Specification Level

Qhov no yog ib feem tseem ceeb ntawm cov kev qhia tshwj xeeb uas tau teev tseg los ntawm API 5L tus qauv. PSL1 thiab PSL2 txhais cov qib sib txawv ntawm cov kev cai.

PSL1 yog qib txheem.Nws muaj cov txheej txheem tshuaj lom neeg, mechanical, thiab kev sim.

PSL2 yog qib siab dua, nruj dua qib zoo.Cov kav dej nrog PSL2 muaj cov cai nruj dua, suav nrog:

Tighter Chemical Composition Control:Kev txwv nruj ntawm cov khoom xws li Carbon, Manganese, Sulfur, thiab Phosphorus los txhim kho weldability thiab toughness.

Siab Toughness Requirements:PSL2 cov kav dej yuav tsum dhau qhov yuav tsum tau ua Charpy V-Qhov kev ntsuam xyuas cuam tshuam kom ntseeg tau tias lawv tuaj yeem nqus tau lub zog thiab tiv thaiv kev puas tsuaj, tshwj xeeb tshaj yog nyob rau hauv qhov chaw txias.

Kev Ntsuam Xyuas Ntau Ntxiv:suav nrog ntxiv tsis yog -kev kuaj kev puas tsuaj (NDT) thiab nruj dua hydrostatic test pressures.

Tshwj xeeb Marking thiab Traceability:Txhim kho cov kev xav tau traceability.

Hauv luv luv: PSL2 yog rau cov ntawv thov tseem ceeb uas yuav tsum muaj kev nyab xeeb dua, kev ntseeg siab, thiab kev ua tau zoo, xws li nyob rau hauv siab - cov kab sib kis los yog qhov chaw hnyav.

3. Carbon hlau

Qhov no txhais cov khoom siv hauv paus.

Nws yog ib qho alloy ntawm hlau thiab carbon, tsuas yog tsawg kawg ntawm lwm cov ntsiab lus.

Nws muaj zog, ruaj khov, thiab tus nqi - zoo rau kev tsim cov kav dej.

It is weldable, which is essential for joining long sections of pipe in the field.

4. Kab Yeeb

Qhov no yog hom khoom kawg. Nws yog welded los yog seamless steel raj tsim los nruj me ntsis, mechanical, thiab tshuaj cov qauv siv rau conveying gases, kua, thiab slurries nyob ntev.

Cov ntsiab lus: L245 PSL2 Carbon Steel Kab Yeeb

Qhov no piav txog asiab -zoo, txheem yeeb nkabnrog cov yam ntxwv tseem ceeb hauv qab no:

Daim ntawv thov:Kev thauj cov roj, roj, thiab lwm yam kua.

Khoom siv:Carbon Steel.

Yam tsawg kawg nkaus Yield Strength:245 MPa (~ 35,500 psi).

Qib Zoo:Siab (PSL2), lub ntsiab lus nws tau txhim kho cov tawv nqaij, kev tswj tshuaj nruj dua, thiab kev sim ntau dua rau kev pabcuam tseem ceeb.

Kev tswj hwm tus qauv: API 5L

Tag nrho cov kev qhia tshwj xeeb no tau txhais thiab tswj los ntawm tusLub koom haum American Petroleum Specification 5L (API 5L), uas yog lub thoob ntiaj teb benchmark rau kab yeeb nkab. Txhua cov yeeb nkab nrog qhov kev xaiv no yuav tsum tau tsim thiab sim ua raws li tus qauv no.

Cov ntawv thov raug:

Onshore thiab offshore roj thiab roj xa mus kav.

Sib sau cov kab ntawm qhov dej mus rau cov chaw ua haujlwm.

Natural gas distribution networks.

Cov lus sib piv: L245 PSL1 vs. L245 PSL2