Cov hlau tsis zoo thiab Cov Hlau Stainless Welded thiab Seamless Yeeb Nkab

Cov yeeb nkab steel hlau thiab cov yeeb nkab steel hlau yog qhov ntau hom ntawm cov yeeb nkab txheem siv niaj hnub no. Lawv yog ib feem ntawm cov khoom lag luam tubular, uas yog tsim kom txawv cov lus qhia tshwj xeeb thiab cov qauv. Cov kav dej tau muag los ntawm "nominal yeeb nkab loj" hauv qhov ntau thiab tsawg los ntawm 1/8 "txog 72". Qhov ob feem ntau hom kev txuas ntawm cov kav dej yog welded yeeb nkab thiab seamless yeeb nkab. Ob qho no muaj nyob rau hauv carbon hlau thiab stainless hlau. Welded yeeb nkab kuj yog hu ua ERW (Hluav Taws Xob Kuj Ruaj Khov Welded) yeeb nkab. Cov kev txwv tshwj xeeb tshaj plaws rau welded carbon steel yeeb nkab yog A53. Seamless yeeb nkab yog tsim los ntawm tus txheej txheem uas yuav tsum tsis muaj hlau txuas. Feem ntau cov lus qhia tshwj xeeb tshaj plaws rau seamless carbon steel yeeb nkab yog A106B. Cov yeeb nkab hlau Stainless tau ua rau spec A312. Cov yeeb nkab steel hlau kuj tseem muaj nyob rau hauv ob qho tib si seamless thiab welded kev teeb tsa. Cov khoom siv feem ntau stainless yog 316 thiab 304.

Cov Kav Dej thiab Cov Tubular Khoom

Muaj rau hom kav dej thiab tubular khoom lag luam.

1. Cov Kab Yeeb Nkab: Muaj peb yam sib txawv ntawm cov kav dej hlau txheem - welded (ERW Yeeb Nkab), cov yeeb nkab tsis xeb, thiab cov yeeb nkab galvanized. Lawv sawv cev rau 10% ntawm tag nrho cov khoom lag luam tubular.

2. Kab Yeeb Nkab: Siv feem ntau siv rau hauv Cov Kev Siv Roj thiab Roj. Cov kab yeeb nkab suav nrog ERW, FW, SAW thiab DSAW Yeeb Nkab. Lawv raug tsim tawm rau API 5L Kev Pom Zoo thiab muaj nyob hauv qib X42, X50, X60 thiab lwm yam. Lawv sawv cev 21% ntawm tag nrho cov khoom lag luam tubular.

3. Roj Lub Tebchaws Tubular Cov Khoom Siv (OCTG): Qhov no suav nrog cov kav dej tho, tubing thiab ntim khoom. Nws yog siv rau hauv kev tho thiab ua tiav ntawm Roj thiab Roj hauv qhov dej. OCTG yog tsim los ntawm ERW thiab Kev Tsim Seamless. OCTG sawv cev rau 35% ntawm tag nrho cov khoom muag tubular.

4. Siab Tubing: siv rau kev lag luam thiab siab thov. Siab tubing yog tsim siv siv chaw ua seamless. Lawv sawv cev 2% ntawm tag nrho cov khoom muag tubular.

5. Mechanical tubing: siv rau kev siv tshuab thiab kev teeb tsa thiab yog produdced los ntawm ERW thiab kev tsim kev sib khi. Lawv ua raws li ASTM kev paub meej. Mechanical Tubing sawv cev rau 17% ntawm tag nrho cov khoom muag tubular.

6. Cov Khaub Ncaws Txheej Txheem: siv rau kev txhawb nqa lossis khaws cia cov hom phiaj. Lub raj no tuaj yeem puag ncig lossis square thiab raug tsim los ntawm ERW kev tsim khoom. Lawv siv rau cov laj kab, kev tsim kho thiab lwm yam misc. txhawb cov kev xav tau. Lawv sawv cev rau 15% ntawm tag nrho cov khoom muag tubing.

Yuav ntsuas ntsuas yeeb nkab li cas?

Cov yeeb nkab feem ntau txheeb xyuas los ntawm "Nominal Yeeb Nkab Loj" (NPS), nrog cov phab ntsa tuab tau txhais los ntawm "Teem Caij" (SCH). NPS yog dimensionless tus tsim qauv thiab yog qhov ntsuas qhov loj me tab sis tsis yog qhov loj me. Qhov no tsis meej pem rau ntau tus neeg tshiab rau qhov kev lag luam piping. NPS 1/8 txog NPS 12 muaj qhov taub sab nraud uas tau txhais los ntawm cov khoom siv yeeb nkab ansi. Feem ntau hais lus, sijhawm 40 txheej txheem yeeb nkab kom txog 12 NPS yog sib luag rau tus ID ntawm cov yeeb nkab. Cov yeeb nkab qhov ntau thiab tsawg 14 thiab sab saud tsis tshua sib haum li 14 NPS sib npaug li 14 "OD (taub diam).

Daim Ntawv Loj Raws Li Cov Yeeb Nkab

ASME B 36.10 muaj ntau cov ntsiab lus ntawm cov yeeb nkab ntau thiab tsawg. Cov qauv kev lag luam rau cov yeeb nkab loj kuj txawv ntawm ntau hom yeeb nkab. Rau cov yeeb nkab txheem, 4.5 "OD yeeb nkab yuav raug xa mus ua 4" NPS txawm li cas los xij rau kab yeeb nkab thiab OCTG, nws yuav raug xa mus ua 4.5 "nkaus xwb. Ntsa cov phab ntsa tuab kuj tau hais txog qhov sib txawv. Rau cov yeeb nkab txheem, yeeb yaj kiab yeeb siv los tsim qauv phab ntsa tuab.Tab sis cov kab yeeb nkab yuav luag txhua tus xa los ntawm phab ntsa tuab hos OCTG xa los ntawm qhov hnyav ib txhais taw.

Nyhav ntawm Yeeb Nkab

Kev hnyav ntawm cov yeeb nkab yog ntsuas hauv phaus ib txhais ko taw lossis kilus hauv ib lub ntsuas. Ib qho yuav tsum nco ntsoov tias qhov nyhav ntawm cov yeeb nkab hauv cov kab xev ansi yog "theoretical" qhov hnyav thiab tsis yog qhov hnyav. Qhov hnyav yuav txawv raws li qhov kam rau ua los ntawm cov yeeb nkab loj.

Cov txheej txheem los xam qhov hnyav ntawm cov yeeb nkab steel yog;

W = [{OD-WT} x WT] x 10.69

W = Nyhav ib tus taw kab

OD = Txoj Kab Uas hla

WT = Phab Ntsa Thickness

Yeeb Tshuaj Raug

Cov yeeb nkab steel tau koom ua ob pawg loj;

• Welded Yeeb Nkab

• Seamless Yeeb Nkab

Muaj plaub txoj kev tseem ceeb ntawm kev ua cov yeeb nkab hlau:

1. Cub Hluav Taws Xob Weld (FW). Kuj hu ua Nruam Weld

2. Weld fais kuj (ERW)

3. Submerged Arc Weld (SAW), kuj DSAW

4. Seamless (SMLS) txoj kev

Hluav Taws Xob Kuj Weld Yeeb (ERW)

ERW Yeeb Nkab Yeeb Yam yog tsim hauv qhov ntau thiab tsawg ntawm 1/8 txog 24 hauv NPS. ERW welded yeeb nkab yog tsim los ntawm cov ntawv hlau tiaj tus. ERW yeeb nkab yog thawj txias tsim ua rau cov ntawv muaj cov thooj voos kheej kheej thiab tom qab ntawd ces txuas ntev. ob qho tib si txuas mus txuas txuas thiab elctric tsis kam txuas cov yeeb nkab yog tsim los ntawm cov ntaub ntawv yob ntawm cov coiled steel rau hauv cov ntawv sib txawv thiab vuam raws cov ntug ntev. Daim duab hauv qab no qhia thawj kauj ruam ntawm kev ua ib daim hlab rau hauv cov duab cylindrical thiab tom qab ntawd fusing nws ua ke hauv qib 2.

Muaj ntau txoj hauv kev rau lub sijhawm siv hluav taws xob rau siv rau lub vuam kab hlau rhuav. Qhov no suav nrog tig tooj liab disc, tsau alloy Cu tiv tauj thiab induction coils. Cov hau kev no nce qhov kub ntawm cov ntug steel rau 2600 deg F rau kev vuam zoo. Cov txheej txheem dov tawm ntau dhau ntawm lub siab ua rau nws tsim ib qho hlau welded seam rau sab nraud thiab sab hauv. Cov weld seams tau muab tshem tawm thaum lub sijhawm ua tiav. Lub welded yeeb nkab yog kev kho cua sov, kuaj xyuas thiab kuaj hydro.

ERW cov yeeb nkab muaj nyob rau hauv kev ua raws li cov qauv tshwj xeeb;

ASTM A53, A135, A252, A500, A795, API 5L thiab API 5CT.

Feem ntau cov spec rau qhov welded yeeb nkab yog A53 thiab API 5L.

Seamless Yeeb Nkab

Dab tsi yog seamless txhais tau? los yog tsis muaj ntsiab lus? peb tau txais cov lus nug no ntau heev. Seamless yeeb nkab yog tsim nyob rau hauv qhov ntau thiab tsawg los ntawm 1/8 txog 36 "nominal. Seamless yeeb nkab tsis muaj qhov ntev lossis tsis muaj qhov txuas thaum piv rau ERW cov yeeb nkab. Hauv cov lus yooj yooj yim, cov yeeb nkab tsis sib haum yog tsim los ntawm kev sib tsoo ntawm cov khoom sib tsoo billet tawm tom qab hollow seamless yeeb nkab. Muaj ob txoj kev tseem ceeb ntawm kev tsim cov yeeb nkab seamless;

1. Kub Taus Muaj Kub

2. Extrusion Txheej Txheem Txoj Kev

Hauv cov txheej txheem Extrusion, cov ntawv kub ntawm cov hlau yog tsim rau hauv cov yeeb nkab tsis sib haum los ntawm kev yuam cov billets dhau los ntawm extrusion tuag thiab dhau ntawm txoj kev ua ib leeg. Saib duab hauv qab no;

Kub txoj kev siv tho kev sib tsoo txoj kev yog cov txheej txheem ntau tshaj plaws ntawm kev tsim cov yeeb nkab seamless. Nyob rau hauv tus txheej txheem no cov billets kub tau yuam los ntawm kev sib hloov cov qob hnyav dhau lub mandrel lossis cov ntsaws ntsaws. Cov ntsaws ruaj khov ua rau lub qhov taub los ntawm kev siv lub tshuab kaw lus seamless. Daim duab hauv qab no qhia txog cov txheej txheem kub qeeb mentshis.

Seamless yeeb nkab hla ntau qhov tiav cov haujlwm xws li kev ntsuas ncaj ncaj, tshuaj xyuas, kuaj hydro thiab cov duab kos. Seamless yeeb nkab yog dav siv nyob rau hauv cov raj xa dej siab, kev tsim kho, roj av thiab chaw sam roj. Seamless yeeb nkab muaj nyob rau hauv cov ntawv hais hauv qab no;

ASTM A53, A106, A252, A333, A335, A501, A523, A589, API 5L thiab API 5CT. Feem ntau seamless yeeb nkab yog A106B.

Xaus tiav ntawm cov npoo tsawg dua xws li cov nqaj kawg yog beveled lossis square txiav. Seamless carbon steel yeeb nkab muaj nyob rau hauv dub, liab qab, galvanized lossis nrog epoxy txheej.

Hlau Yeeb ប្រវែង

Feem ntau cov yeeb nkab steel yog muab rau hauv 21 ft qhov ntev. Nws kuj tseem muaj nyob hauv Single Random Length (SRL) uas tuaj yeem nyob txhua qhov chaw ntawm 17 ft txog 24 ft. Ob Chav Random Ntev (DRL) yog hais txog cov kav dej uas tsawg kawg 37 ft ntev thiab mus txog 44 ft.

Hlau Yeeb Nkab Kawg

Muaj tsib hom ntau ntawm cov yeeb nkab hlau kawg tas;

1. Threaded thiab Coupled

2. Threaded tsis muaj Coupling

3. Tiaj Xaus - Txiav Xwmfab

4. Beveled rau Vuam - 30 deg bevel

5. Grooved Kawg - Txiav lossis dov rau kev sib txuas tshuab

Daim duab hauv qab no qhia tau hais tias txawv cov yeeb nkab steel kawg tas;

Kev sib koom ua ke rau qhov muaj zog ntxiv thiab ob npaug ntxiv rau cov yeeb nkab muaj zog yog taper threaded thiab recessed rau txhua qhov loj me. Daim duab saum toj no qhia qhov txuas ncaj tapped txuas thiab ncaj tapped txuas nrog ncig ua si.

Hlau Yeeb Nkab Yeeb Txheeb thiab Ntaus Cim

Cov yeeb nkab steel muaj nyob rau hauv kev sib txawv, qib, qhov hnyav, cov sij hawm thiab lwm yam. Li ntawd nws yog ib qho tseem ceeb kom paub cov cim steel yeeb. Cov yeeb nkab steel yog txheeb xyuas los ntawm cov xim pleev xim stencil lossis cov cim ntaus cim rau ntawm cov yeeb nkab nws tus kheej lossis los ntawm daim pib txuas rau nws.

Kev txheeb xyuas yeeb nkab raws li ASTM

Daim duab hauv qab no qhia cov cim ua raws li ASTM cov lus qhia tshwj xeeb

Yeeb tshuaj xas as per API

Daim duab hauv qab no qhia tias yuav tsum khij raws qhov API tshwj xeeb.

Hlau Yeeb Tiav Cov Txheej Txheem

Feem ntau ua tiav ntawm cov yeeb nkab hlau yog lacquer txheej uas tiv thaiv xeb thiab tiv thaiv cov yeeb nkab los ntawm huab cua. Qhov no tseem hu ua Dub Yeeb Yeeb Nkab. Lwm yam tshaj li lacquer, muaj plaub hom hlau yeeb nkab tiav;

1. Hlau Liab Hlau

2. Pickled nkaus xwb

3. Pickled thiab Oiled

4. Galvanized Yeeb Nkab

Galvanizing koom nrog siv zinc txheej ua cov tshuaj txig los tiv thaiv xeb. Zinc feem ntau yog thov los ntawm cov txheej txheem dej kub qhov twg cov yeeb nkab yog xa mus rau hauv lub cev da dej ntawm zinc tov. Cov qauv hnyav ntawm zinc yog 1.8 oz ib sq ft. Galvanized kav muab kev tiv thaiv zoo rau cov yeeb nkab hauv thiab sab nraud.

Hlau Yeeb Nkab Txheej thiab Lined Steel Yeeb Nkab

Cov yeeb nkab uas tiv thaiv xeb kuj tseem tuaj yeem txhim kho nrog corrosion corrosion yeeb txheej. Cov tsho zoo li no feem ntau siv ntev ntev piv nrog lacquer lossis galvanized tiav. Muaj peb qho tseem ceeb ntawm Kev Txhuam Txhuam Hnav Tiv Thaiv rau Hlau Yeeb

Nws Muaj Txuj Ci

Tsis-Metallic Txheej

Qhwv Yeeb Yeeb Nkab

Cov Khoom Siv Yeeb Hlau

Cov Kav Hlau Hlau muaj nyob rau hauv cov khoom siv hauv qab no;

• A106B / A53B / API 5L-X42 / API 5L B

• Stainless Hlau 304

• Stainless Hlau 316

• Super Stainless A20

• Duplex Stainless D2205

• Nickel Alloy A200

• Nickel Alloy A400

• Nickel Alloy A600

Cov Yeeb Nkab Hlau Yeeb

Stainless hlau yog hlau raws alloy uas muaj tsawg kawg 16% chromium. Nickel yog lwm qhov tseem ceeb rau alloying hauv cov yeeb nkab steel hlau. Cov yeeb nkab hlau Stainless muaj cov tshuaj tiv thaiv zoo tshaj tawm rau cov xov xwm tawm thiab kom oxidation thaum yuav luag txhua yam ntsuas kub.

Stainless hlau welded thiab cov kav dej tsis sib haum yog siv rau ntau qhov laj thawj xws li los tiv thaiv corrosion, preform ntawm qhov kub, rau kev saib kom zoo thiab qis tus nqi. Cov yam ntxwv tseem ceeb tshaj plaws rau cov yeeb nkab steel hlau yog nws cov khoom siv hluav taws xob uas tso cai rau ntau cov phab ntsa thinner raug tsim xws li sch 5, sch 10 yam tsis muaj kev cuam tshuam cov qauv kev ncaj ncees ntawm cov yeeb nkab. Kev siv ntawm fusion welding los koom nrog cov yeeb nkab kuj tseem tshem tawm qhov kev xav tau ntawm txoj xov.

Hom 304 stainless hlau yeeb nkab feem ntau yog siv rau cov ntawv thov dav dav corrosive. nws yog siv hauv cov nroj tsuag tshuaj lom neeg, chaw tsim tshuaj, ntawv mills thiab zaub mov lag luam. 304SS yeeb nkab muaj cov pa roj carbon ntau tshaj yog 0.08%. Nws tsis pom zoo rau siv nyob rau hauv qhov kub ntawm 800 deg F thiab 1650 deg F vim vim carbide nag lossis daus ntawm thaj tsam ntawm cov lis. Hom 304L yog tib yam li 304 tsuas yog tias nws muaj 0.035% cov ntsiab lus carbon ntau kawg.

Hom 316SS yeeb nkab muaj ntau tiv taus pitting dua li lwm cov chromium nickel alloys vim qhov ntxiv ntawm 2-3% molybdenum. Nws yog qhov muaj txiaj ntsig hauv kev siv nrog cov kua qaub, brines, sulfur dej, dej hiav txwv thiab nrog ntsev hologen. 316L steel hlau yeeb, zoo li 304L, muaj cov pa roj carbon ntau cov ntsiab lus 0.035%.

Welded Stainless Hlau Yeeb Nkab yog tsim los rau qhov tshwj xeeb ASTM A312 thiab A358. A312 yog qhov tshwj xeeb tshaj plaws spec rau cov yeeb nkab steel hlau. Welded stainless yeeb yog tsim los ntawm 1/8 "txog 24" NPS.

Seamless Stainless Hlau Yeeb Nkab yog ua rau kev paub tseeb ASTM A312 thiab A376. A312 tseem yog qhov feem ntau tshaj plaws spec rau seamless hlau yeeb nkab. Seamless stainless yeeb yog tsim los ntawm qhov loj li 1/8 txog 14 "nominal

Hlau Yeeb Lub Teb Chaws ntawm Keeb Kwm

Cov yeeb nkab steel yog tsim los ntawm mills thoob ntiaj teb thiab ua lag luam nyob hauv ntau lub teb chaws. Qee lub npe loj hauv kev lag luam yeeb yog US Steel, ArcelorMittal, Nippon Steel, Nucor Corp, Hyundai Steel, ThyssenKrup, Vallourec, Hebei Iron thiab Steel Group, Posco, Jiangsu Shagang, Ulma Piping, Shultz USA thiab Webco thiab lwm yam.

Q&A Cov Yeeb Nkab Hlau Yeeb

Trupply muag ntau ntau yam ntawm welded thiab seamless yeeb nkab. Raws li peb cov kev paub dhau los, cov hauv qab no yog cov lus nug tseem ceeb lossis cov ntsiab lus tseem ceeb uas cov neeg siv khoom nug txog;

• Cov yeeb nkab steel yog muag los ntawm nominal cov yeeb nkab loj thiab lub sijhawm. Nws yog ib qho tseem ceeb los hais ob qho tib si

• A106 B yog qhov feem ntau tsis muaj hlua khi yeeb nkab tshwj xeeb tshaj plaws. Cov neeg siv khoom feem ntau tsuas yog paub lawv xav tau A106B yeeb nkab thiab nws tsuas yog nkag siab tias lawv xav tau carbon steel seamless yeeb nkab raws li A106B. A106 TSIS yog qhov tshwj xeeb rau kev ua yeeb nkab steel hlau

• Yeeb nkab qhov loj me 10 nti thiab siab dua TSIS TXHOB cuam tshuam nrog tus lej teem sij hawm. Xws li SCH 40 thiab SCH 80 tsis yog ib txwm txhais tias Standard thiab Extra Heavy feem. Xa mus rau cov kab kos yeeb yaj kiab kom paub tseeb tias koj tau xaj kom qhov tseeb ntawm tuab phab ntsa

• A53 qib B yog qhov tshwj xeeb tshaj plaws ntawm qhov yeeb nkab welded. Nws tsuas yog txhais tau tias yog cov yeeb nkab uas tau tsim los ntawm txheej txheem ERW.

• Welded yeeb nkab TSIS muaj lub weld seam hauv lossis sab nraud. Welded yeeb nkab yog tsim los ntawm hluav taws xob tiv thaiv vuam thiab lub seam tau coj tawm thaum lub sijhawm txheej txheem tsim khoom

• Cov yeeb nkab loj dua me dua 2 "muaj nyob rau hauv cov yeeb nkab txuas txuas txuas, tseem paub A53 qib A.

• Cov yeeb nkab hlau Stainless muaj nyob rau hauv ob qho tib si welded thiab seamless teeb tsa thiab hauv 316 thiab 304 qib khoom siv. Lwm cov qib stainless kuj tseem muaj tab sis tsis tshua muaj

• Cov yeeb nkab steel hlau kuj tseem muaj ntau nyob hauv lub sijhawm 10 uas yog ib sab ntsa.

• Cov yeeb nkab hlau tsis raws caij teev muaj "s" tom qab cov sijhawm ua haujlwm xws li Sch 10s, Sch 40s, Sch 80s.

• Cov sijhawm cov yeeb nkab hlau tsis txuas ib txwm cov sib txuas nrog cov pa roj carbon steel cov sijhawm. Txheeb xyuas cov khoom siv yeeb nkab ansi rau kev txiav txim siab tsim nyog ntawm lub sijhawm tus lej thiab phab ntsa tuab

• Cov kav dej feem ntau yog muag los ntawm SRL (tib qho ntev) lossis Double Random Length (DRL). SRL txhais tau tias cov yeeb nkab yuav feem ntau nruab nrab ntawm 17 ft txog 24 ft. DRL feem ntau txhais tau tias cov yeeb nkab yuav yog 37 ft rau 44 ft.

• Feem coob ntawm cov yeeb nkab muag muag tau lacquer tiav. Yog tias koj xav tau cov yeeb yaj kiab liab qab, thov qhia lub sijhawm thaum xaj khoom

• Epoxy txheej ntawm cov yeeb nkab tuaj yeem ua tiav thaum thov.

• Feem ntau cov yeeb nkab kawg hom yog qhov kawg kawg lossis beveled kawg. Xov xaus kuj muaj rau thaum thov