API 5L PSL2 X70 Kab Yeeb

API 5L PSL2 X70yog lub siab-zog, tsawg-alloy (hsla) tus qauv xim dav siv hauv cov roj thiab roj kev lag luam rau cov ntawv thov xa hluav taws xob. Nws yog ib feem ntawm API 5L cov lus qhia, uas tau tswj hwm kev tsim khoom, kev sim tshuaj, thiab tswj cov kav hlau siv rau hauv hydrocarbons thiab lwm yam dej.

API 5L PSL2 X70 Kab Yeeb
Cov Qib:Gr.A, Gr.B, A25, X42, X42, X4, X 5, X60, X70, X 90M, x120m, x120m.
Qib Khoom Tshwj Xeeb Qib:PSL1, PSL2.
Txheej ntawm txoj kab uas ntau lawm:1/2 "txog 2", 3 ", 4", 6 ", 10", 10 ntiv tes, 20 ntiv, 24 ntiv tes ntev txog 40 ntiv tes.
Hom khoom lag luam:ERW, LSAW, SMLS.
Cov Sijhawm Thuab:SCH 10, SCH 20, SCH 40, SCH STD, SCH 80, SCH Xs, rau Sch 160.
Xaus Hom:Beveled xaus, dawb xaus.
Nto Kho:Ntuj, varnished, tha xim dub, FBE, 3PE (3PPE), 3PP, CLC (pob zeb txiav coated) CRA clad lossis kab.

Daim Ntawv Thov:Dav siv nyob rau hauv cov roj thiab roj kev lag luam rau cov raj xa dej.

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm API 5L x70 PSL2 yog ua tib zoo tswj kom ua tiav nws cov khoom siv khoom siv:

Cov pa roj carbon (c): Ntau tshaj plaws {{{0}}}}}. 18% rau cov yeeb nkab uas tsis sib xws thiab 0.12% rau welded yeeb nkab.

• Lub luag haujlwm: carbon yog thawj lub zog ntxiv dag zog hauv cov hlau. Nws siv cov carbides, uas nce hardness thiab lub zog.
• Qhov tseem ceeb: Hauv X70, cov ntsiab lus carbon, carbon, cov ntsiab lus carbon nyob qis qis kom ntseeg tau zoo weldability thiab tawv. Cov roj carbon ntau dua tuaj yeem ua rau brittleness thiab tawg thaum lub sij hawm vuam.

Manganese (mn): ntau tshaj 1.80% rau STxias yeeb nkabthiab 1.70% rau welded yeeb nkab.

• Lub luag haujlwm: Manganese yog qhov tseem ceeb tshaj plaws cov lus uas txhim kho lub zog, ua kom tsis muaj zog, thiab tawv. Nws tseem yuav pab Deagidize cov hlau thaum kev tsim khoom.
• Qhov Tseem Ceeb: Cov ntsiab lus manganese cov ntsiab lus hauv x70 ua rau nws cov txiaj ntsig zoo tshaj plaws lub zog (ntau dua los yog sib npaug nrog 70 2}} psi) thaum tswj hwm. Nws tseem txhim kho cov hlau muaj peev xwm tiv thaiv cov khoom cuam tshuam.

Silicon (si):Ntau tshaj 0. 45% rau seamless yeeb thiab welded yeeb nkab.

• Lub luag haujlwm: silicon ua raws li deoxidizer thaum statmaking thiab txhim kho lub zog los ntawm cov tshuaj muaj zog zog.
• Qhov tseem ceeb: Nws txhim kho cov hlau lub zog yam tsis muaj kev cuam tshuam rau nws cov tawv lossis weldability. Silicon kuj tau pab rau hauv kev sib sau cov txheej tiv thaiv oxide ntawm cov hlau nto.

Phosphorus (p): siab tshaj 0. 025%rau seamless yeeb nkab thiab welded yeeb nkab.

• Lub luag haujlwm: Phosphorus tuaj yeem ua kom muaj zog thiab hardness tab sis feem ntau suav tias yog ib qho impurity hauv hlau.
• Qhov tseem ceeb: Hauv X70, phosphorus khaws cia rau theem qis kom tiv thaiv tau cov hlau txoj kev nruj thiab weldability.

Sulphur (s): Ntau tshaj 0. 015%rau seamless yeeb nkab thiab welded yeeb nkab.

• Lub luag haujlwm: Sulfur cov ntaub ntawv sulfide suav, uas tuaj yeem txo cov tawv thiab ductility.
• Qhov Tseem Ceeb: Cov neeg Sulphur cov ntsiab lus hauv x70 yog qhov tsawg rau kom ntseeg tau tias siab tawv thiab kev tiv thaiv kom tawg, tshwj xeeb tshaj yog nyob hauv ib puag ncig tsawg.

Lwm cov ntsiab lus xws li Vanadium (V), Niobium (NB), thiab titanium (ti) raug tswj hwm kev nrawm thiab weldability.

API 5L X70 yog tsim los ua kom tau raws li cov neeg kho tshuab cov kev ua tau zoo:

Yield zog (ys): 70, {300 - 92100 psi (485 - 635 mpa)
Ua kom cov raj xa dej tuaj yeem tiv taus lub siab sab hauv.

Tensile lub zog (TS): 82, {700 - 110200 psi (570 - 760 mpa)

Muab kev tiv thaiv kev nyab xeeb tiv thaiv kev ua tiav tsis ua tiav cov kev thauj khoom.

Kev muaj zog:

X70 hlau cov yeeb yam zoo heev qis-kub nyuaj, ua rau nws haum rau cov kev pheej hmoo thiab txo qhov kev pheej hmoo ntawm brittle bacitture. Cov cuab yeej no yog qhov tseem ceeb rau cov kav dej uas yuav raug rau lwm cov tub sab sab nraud xws li av qeeg lossis hauv av.

API 5L X70 hlau yog qhov ntau hauv ntau cov roj thiab roj applicions vim nws lub zog, kev nruj, thiab weldability:

• Ntev-Tsheb Pipelines:

Siv rau kev thauj cov roj thiab cov nkev hla ntawm cov chaw sib tw.

• Ntug dej hiav txwv:

Haum rau cov kav dej yug ntxiv thiab ris tsho vim nws lub peev xwm los tiv thaiv lub siab sab hauv thiab sab nraud.

• High -ve-heighines:

Haum rau cov raj xa dej ua haujlwm nyob rau hauv lub siab sab hauv.

• Arctic thiab Huab Cua Huab Cua Pipelines:

Nws zoo heev qis-kub nruj ua kom nws zoo rau cov chaw hnyav.

• Kev Sau Cov Kab:

Siv nyob rau hauv cov roj thiab roj av los sau ntau lawm los ntawm ntau lub qhov dej thiab thauj nws los ua cov chaw.

• Liquefied nkev (lng) cov chaw:

X70 cov hlau siv hauv cov ntawv thov cryogenic rau lng cia thiab tsheb thauj mus los vim nws qhov qis-kub.

• Sib npaug ntawm lub zog thiab tawv:

X70 muaj kev sib npaug zoo nruab nrab ntawm lub zog siab thiab qis-kub nruj heev, ua rau nws haum rau ntau cov ntawv thov.

• Hwj txwv:

Txawm hais tias nws lub zog siab, X70 khaws cov weldability zoo, uas yog qhov tseem ceeb rau kev siv hluav taws xob thiab kho.

• Nqi zog-ua hauj lwm:

Piv rau cov qhab nia siab dua li X80 lossis X 1900, X70 muaj kev lag luam ntau dua los tsim thiab yooj yim dua ua haujlwm nrog tom teb.

• Kev Lag Luam Thoob Ntiaj Teb:

X70 tau dav thiab npaj tau muaj, txo lub sijhawm coj txhuas thiab cov khoom siv saw hlau muab.

• Pov thawj ua haujlwm:

Nrog rau xyoo ntawm kev siv hauv cov phiaj xwm tseem ceeb thoob ntiaj teb, x70 muaj keeb kwm tsim nyog hauv keeb kwm, muab kev ntseeg siab rau cov engineers rau nws txoj kev ntseeg tau ntev.

• Kev Lag Luam Kev Lag Luam:

API 5L X70 tau tsim qauv zoo hauv cov qauv thoob ntiaj teb, ua kom muaj txiaj ntsig zoo thiab muaj kev ntseeg tau zoo.

• Kev yoog raws li niaj hnub xav tau:

Raws li lub zog xav tau loj hlob, x70 ua tau raws li qhov xav tau ntawm cov khoom muaj peev xwm, muaj peev xwm siab ntawm kev khiav hauj lwm nyob rau hauv cov kev nyuaj.

Hauv cov ntsiab lus, API 5l PSL2 x70 cov kev xaiv steel yog ib qho kev xaiv txuas ntxiv vim nws cov kws kho tshuab hluav taws xob, weldability, thiab tus nqi-ua hauj lwm zoo. Nws cov kev lag luam thoob plaws hauv cov roj thiab roj kev lag luam yog qhov ua tim khawv rau nws txoj kev ua haujlwm zoo thiab kev ntseeg tau.