310molN Stainless hlau yeeb nkab (UNS S31050 / ASTM A213)

Khoom Taw Qhia

310MoLN stainless hlau yeeb nkab yog sab saum toj -tier cua sov- thiab corrosion{3}}resistant alloy. Nws pom zoo oxidation tsis kam, carburization tsis kam, thiab ultra-lub zog siab nyob rau hauv siab - qhov kub thiab txias (txog 1100 degree) thiab corrosive heev (tshwj xeeb tshaj yog nyob rau hauv sulfur-muaj cua). Nws yog cov kws tshaj lij-cov ntaub ntawv qib uas daws qhov kev sib tw ob ntawm qhov tsis txaus siab - kub lub zog thiab siab - kub corrosion. Nws yog ib qho kev hloov kho tshiab ntawm classic 310S (25Cr-20Ni) stainless hlau kub-resistant, tsim los ntawm kev ntxiv molybdenum (Mo) thiab nitrogen (N) cov ntsiab lus.

Nws tus nqi yog 2-3 npaug ntawm qhov zoo tib yam 310S yeeb nkab thiab ntau tshaj 5 npaug ntawm 304H yeeb nkab. Koj them rau "siab kub lub zog" thiab "ua hauj lwm rau complex corrosion". Hauv kev siv tswv yim, cov kav dej no tau siv rau hauv cov nroj tsuag petrochemical (elliptical raj, pigtail tubes, thiab converter tubes hauv ethylene cracking furnaces). Qee cov neeg siv khoom kuj tseem siv lawv rau ntawm lub tshuab hluav taws xob thiab cov twj tso kua mis muffle hauv siab -kub annealing furnaces thiab carburizing furnaces. Lawv kuj muaj feem ntau pom nyob rau hauv high-temperature converter tubes thiab superheater tubes nyob rau hauv khib nyiab incinerators.

Peb yuav muab cov ntaub ntawv MTR (Mean Transmission Report), siab -cov ntaub ntawv kev ua haujlwm kub, cov ntaub ntawv kho cua sov, thiab tsis yog- tsab ntawv ceeb toom kev puas tsuaj raws li koj xav tau thiab cov khoom kawg.

Kev Qhia Txog Kev Muag Khoom thiab Cov Qauv Kev Lag Luam

Koj qhov kev thov rau kev hais lus yuav tsum yog raws li cov ntaub ntawv qhia.

1. Qhia meej meej txog cov qauv thiab qib:

Tus qauv rau 310MoLN stainless hlau tubing yog ASTM A213 / A312 (boiler hlab / seamless welded hlab) los yog ASTM A789 / A790 (duplex stainless hlau, txawm hais tias 310MoLN kuj tuaj yeem xa mus rau tus qauv no). Peb kuj xa mus rau nws raws li qib sib koom ua ke: UNS S31050. Qhov no tsuas yog tus txheeb ze txhim khu kev qha; Cov lus piav qhia tsis meej siv tsuas yog "310MoLN" raug txwv nruj heev.

2. Cov ntsiab lus nthuav dav thiab kev xa khoom xa tuaj (Lifeline Terms):

Raws li cov khoom lag luam tawm tswv yim thiab cov neeg siv khoom xav tau yav dhau los, peb tuav cov khoom muag ntawm 310MoLN tubing. Cov kev qhia tshwj xeeb yog: sab nraud txoj kab uas hla: 6mm - 1219mm; Thickness: 0.5 hli - 100 hli. Koj tuaj yeem muab txoj kab uas hla sab nraud (OD), phab ntsa thickness (WT), thiab ntev kom tau raws li koj qhov yuav tsum tau ua. Eccentric reducers feem ntau yog siv rau boiler raj; yuav tsum tau kos duab kom ntxaws.

Tus me nyuam qhov xwm txheej: Yuav tsum qhia "Kev daws teeb meem Annealed, feem ntau yog dej-quenched ntawm 1050-1150 degree".

3. Cov Txheej Txheem Ua Haujlwm (Core of the Technical Agreement):

Yuav tsum tau muab xauv rau hauv: "Tus neeg muag khoom yuav tsum muab siab - kub luv- lub sij hawm yield zog cov ntaub ntawv rau qib steel no ntawm 950℃thiab 1050℃, nrog rau creep rupture lub neej kwv yees curves lossis cov ntaub ntawv nyob rau hauv kev ntxhov siab ntawm XXX℃thiab XX MPa."

Composition Control: "Nitrogen (N) cov ntsiab lus yuav tsum siab tshaj los yog sib npaug rau 0.12%, Molybdenum (Mo) cov ntsiab lus yuav tsum siab tshaj los yog sib npaug rau 2.2%.

4. Cov Lus Qhia Tshwj Xeeb (Cov Nqi Ntxiv, tab sis Yuav Tsum Tau):

Tsis yog-Kev kuaj kev puas tsuaj: 100% eddy tam sim no (ET) + ultrasonic (UT) kuaj, lossis kuaj hydrostatic raws li ASTM A450.

Sab Hauv Phab Ntsa Smoothness: Txhawm rau tiv thaiv coking, ethylene cracking furnace tubes feem ntau xav kom cov phab ntsa sab hauv yuav tsum sandblasted los yog acid-ntxuav rau ib qho roughness (piv txwv li, Ra tsawg dua los yog sib npaug rau 1.6μm).

Dimensional raug: Cov kev xav tau siab heev tau muab tso rau. lub uniformity ntawm phab ntsa thickness (eccentricity).

Hu rau tam sim no

Kev ua haujlwm nyuaj thiab cov ntsiab lus tseem ceeb

(Kev nkag siab qhov laj thawj rau tus nqi tsis txaus)

310 moLN stainless hlau kav yog qhov nyuaj heev los tsim. Cov ntsiab lus siab alloy ua rau tsis zoo kub ua haujlwm plasticity, ua rau tho thiab dov nyuaj thiab ua rau tsis muaj txiaj ntsig. Qhov no yog ib qho ntawm cov laj thawj tseem ceeb rau nws cov nqi siab

Vuam yog qhov nyuaj tshaj plaws:

Ultra-cov khoom siv vuam zoo sib xws yuav tsum tau siv, nrog npib tsib xee-raws li alloy vuam consumables (xws li Inconel 625/82 vuam hlau) yog qhov kev xaiv.

Cov txheej txheem vuam nruj nruj (WPS / PQR) cov txheej txheem yuav tsum tau tsim, qhov kub tsis tshua muaj kev cuam tshuam yuav tsum tau tswj, thiab argon purging ntawm phab ntsa sab hauv yog qhov tseem ceeb.

Tom qab-weld tov kev kho cua sov yog yuav tsum tau los kho cov corrosion kuj thiab siab -kub kev ua tau zoo ntawm tshav kub- thaj tsam cuam tshuam. Ntawm -site post-weld heat treatment yog ib qho kev sib tw loj.

Kub dabtsi yog khoov yog yuav tsum tau rau cov yeeb nkab dabtsi yog khoov:

Txias dabtsi yog khoov yog yooj yim heev rau tawg; induction cua sov dabtsi yog khoov yuav tsum tau siv, thiab cov cua kub ntau yam yuav tsum tau nruj me ntsis tswj.

Ib -Stop procurement golden txoj cai:

Tsis txhob yuav "pib liab qab" xwb! Rau tej yaam num xws li pyrolysis rauv tube, nws yog ib qho tseem ceeb kom nrhiav tau ib tug kws petrochemical yeeb nkab haum chaw tsim tshuaj paus los yog rauv tube tsum nrog tag nrho - txheej txheem muaj peev xwm ntawm "pipe manufacturing + dabtsi yog khoov + vuam + kho cua sov." Lawv tswj cov ntaub ntawv, tsim, thiab kev kho cua sov tag nrho, kom ntseeg tau tias koj tab tom yuav "cov khoom siv hluav taws xob tsim nyog," tsis yog cov khoom siv raw. Qhov no yog tib txoj kev txhim khu kev qha los tswj qhov kev pheej hmoo ntawm qhov project.

Yog xav paub ntxiv, thov hu rau:

 Email:susan@lorkgroup.com
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Hu rau tam sim no

Kev soj ntsuam zoo

Peb feem ntau ua kev tshuaj xyuas lub cev ntawm 310MoLN Stainless Steel Pipes tom qab ntau lawm. Nov yog txheej txheem tsim nyog los xyuas kom meej cov khoom zoo:

1. Chemical Composition Verification (PMI - The Dead End):Thaum tuaj txog, txhua lub yeeb nkab / batch yuav tsum tau kuaj PMI. Lub hom phiaj tseem ceeb yog kom paub meej tias muaj thiab cov ntsiab lus ntawm Mo thiab N. Qhov no yog qhov ua rau tuag taus los tiv thaiv kev hloov pauv ntawm cov kav dej pheej yig 310S (Mo- thiab N-dawb) kav.

2. Dimensional thiab Phab ntsa Thickness Ntsuas:Tshwj xeeb tshaj yog rau phab ntsa thickness uniformity, multi- taw tes soj ntsuam yog ua los ntawm ultrasonic thickness gauge.

3. Kev tshuaj xyuas endoscopic:Sab hauv phab ntsa raug tshuaj xyuas qhov sib sib zog nqus khawb, tawg, lossis cov seem oxide seem.

Kev tshuaj xyuas cov duab thiab cov yeeb yaj kiab tau raug kaw thiab xa mus rau tus neeg siv khoom kom paub meej.

Yog tias koj tsis muaj kev ntseeg siab hauv qhov kev sim peb npaj thiab xav tau kom muaj kev lees paub los ntawm peb lub koom haum kuaj thib peb - thiab xav tau tsab ntawv ceeb toom, peb tuaj yeem npaj cov ntaub ntawv mus rauthib peb-kev kuaj kev puas tsuaj(yuav tsum tau ua rau cov neeg muab khoom tshiab): txiav cov yeeb nkab seem cov qauv thiab xa mus rau lub teb chaws -cov ntaub ntawv xeem cov ntaub ntawv los yog lub chaw tso cai petrochemical kev lag luam rau siab - kub tensile kuaj, metallographic tsom xam (xyuas grain loj thiab precipitates), thiab tag nrho cov muaj pes tsawg leeg tsom xam.

Cim npe nrov: 310moln stainless hlau yeeb nkab, uns s31050, astm a213, Tuam Tshoj stainless hlau yeeb nkab manufacturers