Stainless hlau yeeb nkab

Stainless hlau yeeb nkabyog corrosion-resistant steel tubular khoom tsim nyob ib ncig ntawmKev pabcuam xov xwm, qib chloride, kub, siab, thiab kev tsim khoom(welding, dabtsi yog khoov, pickling / passivation). Cov yeeb nkab "txoj cai" tsis raug xaiv los ntawm qib npe ib leeg- cov neeg yuav khoom feem ntau kaw qhovTus qauv (ASTM / EN / ISO), daim ntawv khoom (seamless lossis welded), thiab tshuaj xyuas / cov ntaub ntawvua ntej, tom qab ntawd lees paub qhov qib thiab qhov chaw ntawm qhov chaw uas xav tau rau lub sijhawm ntev - kev ntseeg tau.

Stainless hlau yeeb nkab yog ib qho ntawm feem ntau siv alloy piping kev daws teeb meem rau corrosive kua, siab - kev pab cuam, thiab siab kub. Raws li kev lees paub thoob ntiaj teb ASTM A312 / ASME SA312 cov qauv, cov kav hlau tsis muaj steel yog tsim los ntawm seamless, welded, thiab hnyav heev - cov ntaub ntawv ua haujlwm kom tau raws li cov kev cai nruj tshaj plaws ntawm kev lag luam xws li roj & roj, petrochemical, hluav taws xob tsim hluav taws xob, kev kho dej, khoom noj khoom haus & dej haus, thiab kev tsim kho.

Raws li ib tugstainless hlau yeeb nkab manufacturersthiab export -oriented muab tus khub nyob rau hauvstainless hlau yeeb nkab Tuam Tshoj, Octal Pipe muaj cov kav hlau tsis muaj steel nrog cov qib kev pab them nqi, kev tswj qhov ntev, thiab kev ruaj ntseg zoo. Peb cov khoom muaj ntawv pov thawj rau cov qauv loj thoob ntiaj teb (ASTM, ASME, EN, DIN) thiab raug tsim los ua kom tau raws li cov neeg siv khoom tshwj xeeb hauv ob qho tib si txheej txheem tseem ceeb thiab cov qauv siv.

Octal Pipe muab cov kav hlau tsis muaj steel ua raws li ASTM A312 / ASME SA312 thiab lwm cov qauv thoob ntiaj teb. Cov kav dej no muaj nyob rau hauv seamless, welded (ERW / EFW), thiab hnyav hnyav ua hauj lwm (HCW) cov ntaub ntawv, muab zoo heev corrosion kuj, siab kub zog, thiab dimensional precision.
Nrog cov qib uas suav nrog TP304/304L, TP316/316L, TP321, TP347, TP310S, Duplex 2205, thiab Super Duplex 2507, peb cov kav hlau tsis muaj steel muaj ntau yam kev lag luam xws li roj & roj, petrochemical, tshuaj ua haujlwm, hluav taws xob tsim khoom, dej haus thiab kev kho mob.

1.Scope & Base Standards

• ASTM A312 / ASME SA312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312) - Austenitic stainless hlau yeeb nkab rau kev xeb dav dav thiab siab - kev pabcuam kub; npog Seamless (SMLS), Welded (nrog / tsis muaj muab tub lim), thiab Heavily Cold Worked (HCW).
• Daim ntawv pov thawj: ASME B36.19M (stainless yeeb nkab qhov loj / qhov hnyav) thiab ASME B36.10M (thaum tsim nyog).
• Kev tshuaj xyuas & cov ntaub ntawv: EN 10204 3.1/3.2 daim ntawv pov thawj xeem; xaiv tau tus neeg siv khoom ITP / tim khawv.

2. Cov qauv tsim

• ASTM A213 / SA213- Boiler thiab superheater raj.
• ASTM A269 - Kev pabcuam dav dav / ntsuas tubing.
• ASTM A358 - Loj- txoj kab uas hla hluav taws xob- fusion-welded (EFW) austenitic yeeb nkab.
• ASTM A789 / A790 - Duplex thiab Super Duplex stainless kav.
• TS EN 10216-5 / EN 10217-7 - Seamless / welded stainless hlab rau lub hom phiaj siab.
• Kev pabcuam qaub: NACE MR0175 / ISO 15156.

3.Qib Tsev Neeg Muab

• TP304 / TP304L - 18Cr-8Ni; Lub hom phiaj dav dav, weldable thiab formable.
• TP316 / TP316L - Mo-cov kabmob, zoo heev hauv kev pabcuam chloride.
• TP321 / TP347 – Ti/Nb stabilized, tiv thaiv intergranular corrosion ncej- vuam.
• TP310S - High Cr-Ni, oxidation resistant ntawm kub siab.
• Duplex 2205 / Super Duplex 2507 - Siab zog, superb SCC kuj.

4.Cov ntaub ntawv & Traceability

• MTRs nrog tshuaj ntsuam xyuas, cov txiaj ntsig kev kho tshuab, NDT cov ntaub ntawv, cov ntawv kho cua sov.
• Thaum tshav kub kub tooj stamping rau tag nrho traceability.
• Kev kuaj PMI muaj nyob rau ntawm qhov kev thov.
• Kev xaiv corrosion thiab IGC xeem (ASTM A262, G48).

316L Stainless hlau yeeb nkab

316L stainless hlau yeeb nkabnquag teev rau chloride-cov kabmob dej, kev pabcuam tshuaj lom neeg me, thiab marine- cov khoom siv hluav taws xob uas nyob ib sab vim tias Mo-cov kabmob chemistry txhim kho pitting tsis kam piv rau 304/304L, thaum qib "L" txhawb kev ruaj ntseg fabrication los ntawm kev txo qis kev pheej hmoo tom qab vuam.

Hauv kev yuav khoom,316L stainless hlau yeeb nkabyuav tsum tau txhais los ntawm: (1) tus txheej txheem tswj hwm (piv txwv li, ASTM A312 TP316L), (2) qhov loj me thiab lub sijhawm, (3) qhov chaw saum npoo (pickled / passivated yog tias xav tau), thiab (4) kev tshuaj xyuas thiab cov ntaub ntawv teev tseg -yog li cov yeeb nkab xa khoom sib tw ob qho tib si kev pabcuam thiab cov qauv kev lees paub.

Stainless hlau yeeb nkab yog feem ntau muab raws liseamlesslos yogwelded, thiab txoj kev xaiv yog feem ntau txiav txim los ntawm lublub luag haujlwm (siab / kub / cyclic loading), fabrication method, thiab qhov kev soj ntsuam uas xav tau los ntawm qhov project ITP. Hauv kev yuav khoom, "seamless vs welded" tsawg dua txog kev nyiam thiab ntau ntxiv txog seb qhov kev pabcuam puas tso cai rau lub vuam seam- thiab yuav ua li cas cov seam yuav raug lees txais thiab sau tseg. Qhov no feem ntau yog li cas Octal Yeeb Nkab thav duab xaiv thaum hais cov khoom sib xyaw - loj stainless pob.

Seamless stainless hlau yeeb nkabfeem ntau xaiv thaum lub luag hauj lwm nruj dua - siab dua, kub dua, los yog xav tau ntau dua thermal cycling- thiab thaum cov neeg yuav khoom xav tau lub cev yeeb nkab homogeneous rau cov txheej txheem tseem ceeb. Nws kuj yog ib txoj hauv kev rau ntau qhov me me uas muaj seamless muaj zog thiab weld-seam tshuaj xyuas ntxiv qhov tsis tsim nyog ntawm qhov tau txais. Cov kev xaiv tseem ceeb muaj xws li:

• Cov spec/code meej meej yuav tsum seamless
• High -kub los yog cyclic kev pab cuam qhov kev tsim qauv yog nyiam
• Tight kam rau ua -up rau prefabricated spools

Welded stainless hlau yeeb nkab(ERW/EFW) feem ntau xaiv rau cov kab uas loj dua, khiav ncaj nraim, thiab tus nqi -cov pob khoom siv tau zoo uas qhov kev qhia tshwj xeeb tso cai rau kev tsim kho. Ntawm no lub hom phiaj ntawm kev yuav khoom hloov mus rau seam lees txais-welding txheej txheem tswj, NDT Scope (UT / RT qhov muaj feem xyuam), thiab qhov yuav tsum tau ua ntawm qhov chaw (pickling / passivation) uas cuam tshuam rau kev ua haujlwm huv. Ntawm cov pob khoom welded, Octal Pipe feem ntau aligns lub seam soj ntsuam thiab cov ntaub ntawv rau qhov project txoj kev lees paub yog li qhov chaw tso tawm tsis tau daig ntawm kev txhais lus.

Cov qauv siv rau tej yaam num muaj xws liASTM A 312 Cov Lus Qhia(austenitic stainless hlau),ASTM A790 Cov Lus Qhia Tshwj Xeeb(duplex stainless yeeb nkab),ASTM A 213(boiler / tshav kub exchanger raj),ASTM A 269 Cov khoom siv(instrumentation tubing), thiabASTM A 358 Cov Khoom Siv Hluav Taws Xob(loj-OD welded austenitic yeeb nkab).

Yog tias koj tab tom ntsuas astainless hlau yeeb nkab manufacturers, dab tsi tiag cais qhov kev cia siab tau los ntawm qhov txaus ntshai yog lub Hoobkas -theem repeatability:Kev txheeb xyuas qib, weld kev ncaj ncees (rau cov yeeb nkab welded), qhov ruaj khov, qhov chaw nyob, thiab kev taug qab. Raws li ib tugstainless hlau yeeb nkab Hoobkas- txhawb nqa tus neeg muag khoom hauvstainless hlau yeeb nkab Tuam Tshoj, Octal Pipe tau teeb tsa los tso cov yeeb nkab stainless nrog kev tswj hwm uas cov neeg yuav khoom tuaj yeem tshawb xyuas ntawm cov haujlwm tiag tiag -tshwj xeeb tshaj yog ntawm cov khoom sib xyaw - qib pob qhov twg 304L thiab316L stainless hlau yeeb nkabtsis tuaj yeem tso cai hla.

Peb lub Hoobkas- sab tswj cov ntsiab lus feem ntau suav nrog:

• PMI / chemistry pov thawj (thaum xav tau):tiv thaiv tsis ncaj ncees lawm -qib mix-ups, ib qho kev pheej hmoo tau txais ntawm 304L/316L kab khoom.
• Dimensional tswj:OD/WT, ovality, straightness-cov no txiav txim siab haum- nce ceev rau prefabrication spools thiab khiav ntev.
• Weld seam pov thawj (rau welded yeeb nkab):Ntawm cov khoom siv xws li 316L stainless hlau yeeb nkab, peb kaw qhov tsis sib xws (lub qhov rais cua sov nkag, mus ncig ceev, tiv thaiv kev tiv thaiv) thiab taug qab seam stability nrog rau hauv - kab saib xyuas; Weld hlaws profile yog tswj los ntawm qhov kev lees paub ntawm lub hauv paus (feem ntau txhais raws li kev txwv ntawm cov hlaws qhov siab / undercut thiab kev sib raug zoo raws li kev ua haujlwm ntawm phab ntsa tuab), thiab cov hlaws sab hauv yog tswj xyuas qhov uas yuav tsum tau ua kom lub bore zoo ib yam rau fabrication thiab txaus kev pab cuam.
• Kev qhuab qhia saum npoo av:pickling/passivation thiab huv si yuav tsum tau teev tseg kom tsis txhob "zoo li OK, tsis ua hauj lwm/commissioning" surprises.
• Export ntim & tso tawm daim ntawv qhia:Raustainless hlau yeeb nkab Tuam Tshojkev muab khoom, qhov kev pheej hmoo feem ntau yog qib sib xyaw- nce, kev puas tsuaj ntawm qhov chaw, thiab kev tso tawm qeeb thaum tau txais. Octal Yeeb Nkab txo qhov no nrog cov cim meej, kev tiv thaiv kawg, kev xaiv pob khoom / lub thawv ntim khoom, thiab ntau ntau -raws li cov pob ntawv tso tawmyeeb nkab cim → MTC → soj ntsuam cov ntaub ntawv. Qhov tshwm sim yog qhov yooj yim: tsawg dua kev thov, tsawg dua rov- kuaj cov voj voog, thiab tso cov khoom lag luam sai dua -vim cov yeeb nkab tuaj txog raws li kev tswj hwm, tsis yog pawg khoom.

Qhov no yog vim li cas ntau buyers nrhiavstainless hlau yeeb nkab manufacturerslos yogstainless hlau yeeb nkab Hoobkashauvstainless hlau yeeb nkab Tuam Tshojsaib xyuas tsawg dua txog cov lus thov dav dav thiab ntau ntxiv txog seb tus neeg muag khoom puas tuaj yeem xa cov txiaj ntsig zoo ib yam: qib raug (nrog rau316L stainless hlau yeeb nkab), qhov loj me, qhov chaw sab xis, thiab cov pov thawj tshawb xyuas txoj cai- yam tsis muaj kev rov ua dua thaum tau txais.

Raws li Stainless Hlau Yeeb Nkab Chaw Tsim Tshuaj, Octal Yeeb Nkab tso tawm cov yeeb nkab stainless nrog kev tswj cov khoom lag luam, cov ntaub ntawv pov thawj kev ncaj ncees (qhov twg siv tau), thiab cov ntaub ntawv tshawb xyuas.

1. Seamless (SMLS)

• Txheej txheem: Billet cua sov → Piercing → Rolling → Sizing → Solution Annealing → Pickling → Test.
• Cov txiaj ntsig: Tsis muaj vuam seam, txhim khu kev qha rau siab -siab thiab kev pabcuam tseem ceeb.

2. Welded (ERW/EFW)

• Txheej txheem: Sawb los yog phaj sib sau → Longitudinal / kauv vuam → tshuaj annealing → Sizing → Straightening.
• Vuam Methods: ERW/HFI, TIG/GTAW, SAW, EFW nyob ntawm OD/WT.
• Cov txiaj ntsig: Tus nqi- zoo, muaj qhov dav dav, kev xaiv huv nrog cov hlaws tshem tawm.

3.Heavly Cold Worked (HCW)

• Txheej txheem: Txias txo ntawm welded yeeb nkab + annealing.
• Cov txiaj ntsig: Ua kom muaj zog, nruj dua kev ua siab ntev, smoother tiav.

4. Kev kho cua sov & Nto

• Kev daws Annealing: 1050-1150℃nrawm quench.
• Kev xaiv saum npoo: Annealed & pickled, ci annealed, satin- polished, iav- polished.

5. Kev Tswj Xyuas Zoo

• Hydrostatic testing, Eddy Current / UT, Radiography ntawm seam & lub cev.
• Mechanical kuaj: Tensile, tawm los, hardness, flattening / flaring.
• Kev kuaj corrosion yeem: ASTM A262 (IGC), ASTM G48 (pitting).

Thaum tus neeg yuav khoomstainless hlau yeeb nkab Tuam Tshoj, qhov kev pheej hmoo tiag tiag tsis yog "cov zeb tuaj yeem ua tsis tau"- nws puas yog tus xa khoom tuaj yeemtuav qib + qhov loj me + deg mobtsis tu ncua hla ib pob tag nrho. Octal Pipe's stainless cov kev pab cuam yog tsim nyob ib ncig ntawm qhov kev muaj tiag: seamless hlab rau nruj OD ntau yam thiab tswj nto, ntxiv rau welded yeeb nkab rau loj diameters, tag nrho cov tso tawm los ntawm lub Hoobkas txoj kev uas muab dov / kos duab, kho cua sov, straightening, thiab pickling nyob rau hauv ib kab.

Qhov no txhais li cas ntawm PO tiag tiag yog qhov yooj yim. Yog qhov project hu rau316L stainless hlau yeeb nkab(feem ntau tov nrog 304L / 321 los yog duplex), Octal Yeeb Nkab tuaj yeem ua kom lub pob huv si los ntawm kev ua nyob rau hauv lub qhov rais OD ib txwm- seamless mus txogΦ630 hlithiab welded mus txogΦ2620 hli, nrog phab ntsa thickness feem ntau1-35 hli-yog li qhov sizing tsis yuam "workarounds" nruab nrab -quote. Ntawm kev tsim khoom, txoj hauv kev yog cov khoom siv- tsav: a280 dov zeb + tev, cestxias dov / txias kos duab, ua raws linatural -gas annealingthiabpicklingrau qhov chaw txias, thiab thaum kawgncajua ntej tso. Cov txheej txheem txheej txheem yog dab tsi txhawb kev ruaj khov - nce thiab kwv yees kev tsim tus cwj pwm, tsis yog lub npe qib ntawm daim ntawv.

Cov qauv thiab qib tau them raws li EPCs tiag tiag yuav: cov kav dej / raj rauASTM / ASME (A312 / A213 / A269 / A789 / A790) Cov ntawv pov thawj, ntxivEN (10216-5/10216-2), DIN (17456/17458), JIS (G3459/G3463), GOST (9941/5632), GB (14975/14976, 13296, 5310, 9948). Qib muaj feem ntau suav nrog cov tsev neeg austenitic (TP304/304L, TP316/316L, TP321, TP347, TP310S, TP317L, 904L), duplex/super duplex (S31803/S32205/S32750), alloys (N08825/N08904/N08028/N08800). Hauv luv: astainless hlau yeeb nkab manufacturersmuaj peev xwm hais txog ob qho tib si "txhua txhua hnub cog stainless" thiab corrosion- cov pob khoom tseem ceeb, nrog rau txoj hauv kev stainless hlau yeeb nkab Hoobkas uas tuaj yeem ua kom cov khoom tso tawm raws li cov kab thiab cov qauv.

Hu rau tam sim no

FAQ

 

 

Q: 304 vs 316L stainless hlau yeeb nkab - kuv yuav tsum qhia qhov twg?

A: Yog tias kab yuav pomchlorides(cov dej txias, ntxhua khaub ncaws, huab cua hauv hiav txwv, brine txaws),316/316Lfeem ntau tau teev tseg vim tias molybdenum txhim kho kev tiv thaiv hauv zos pitting / crevice nres piv nrog 304-series.316Lyog feem ntau nyiam rau welded spools kom txo tau rhiab heev tom qab vuam.

Q: ASTM A312 vs ASTM A213 vs ASTM A 269 - Dab tsi yog qhov txawv (pipe vs raj)?

A: Xav tias "kev pabcuam + daim ntawv khoom":ASTM A 312 Cov Lus Qhiayog stainlesscevrau siab -kub thiab dav corrosive kev pab (seamless los yog welded).ASTM A 213yogseamlessboiler/superheater/heat- pauvcov raj, thiabASTM A 269 Cov khoom sivyog stainlesscev(seamless los yog welded) rau kev xeb dav dav -tiv taus, qis / siab- kev pabcuam kub.

Q: Seamless vs welded stainless hlau yeeb nkab - Kuv yuav xaiv li cas yam tsis dhau - qhia meej?

A: Xaivseamlessthaum lub luag hauj lwm los yog spec yog nruj dua (siab siab / kub, hnyav cycling, los yog "seamless yuav tsum tau"). Xaivweldedthaum lub spec tso cai rau nws thiab qhov project tau txais txiaj ntsig los ntawm ruaj khov OD/WT thiab muaj nyob hauv -ces tswj kev pheej hmoo los ntawm kev txhaisseam NDT Scope(UT / RT / ET per ITP) thiab qhov xav tau ntawm qhov chaw nyob hauv PO.

Q: Kuv yuav ua li cas thiaj tsim nyog rau lub chaw tsim khoom / lub Hoobkas hauv Suav teb ua ntej muab PO?

A: Nug ib qhoEN 10204 3.1daim ntawv pov thawj khi rau cov khoom siv ntau (cov txiaj ntsig kev xeem + cov lus qhia ua raws), thiab xav tau kev taug qab los ntawmyeeb nkab cim → MTC → soj ntsuam cov ntaub ntawv; ntxiv PMI qhov twg qib- sib xyaw txaus ntshai (piv txwv li, 304L + 316L pob khoom). Qhov no yog txoj kev ceev tshaj plaws los de-kev pheej hmoo "stainless steel yeeb nkab Tuam Tshoj" nrhiav thiab zam kom tau txais- tso tawm qeeb.

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OD:6mm-1200 hli

Phab ntsa Thickness:0.3-50mm (SCH 5S txog XXS)

Ntev:6m, 12m, 20FT, 40FT, kev cai txiav

Xaus:Beveled, tiaj, threaded nrog couplings

Nto tiav:A / P, BA, polished, iav

Cim npe nrov: Tuam Tshoj stainless hlau yeeb nkab manufacturers, lwm tus neeg, Hoobkas