347 Stainless Steel Tube: Cov txiaj ntsig rau kev vuam kub siab

347 Stainless Steel Tube: Cov txiaj ntsig rau kev vuam kub siab

Kev Taw Qhia

347 Cov Hlau Stainless Hlauyog ib lub raj xa dej niobium-stabilized austenitic stainless uas siv thaum cov khoom sib txuas yuav tsum khaws cov tshuaj tiv thaiv corrosion tom qab raug rau qhov kub siab. Nws feem ntau tau teev tseg rau cov khoom sib pauv cua sov, cov tshuab cua sov superheaters, cov tshuab cua sov, cov khoom sib dhos pa tawm, cov kav dej petrochemical thiab cov khoom siv thermal process. Cov neeg yuav khoom yuav tsum txheeb xyuas UNS S34700, tus qauv raj raug, niobium stabilization, kev kho cua sov, qhov ntsuas kev sim thiab kev taug qab tus lej cua sov ua ntej pom zoo cov khoom siv.

Cov Ntsiab Lus Tseem Ceeb:Qib 347 muaj feem cuam tshuam nrog 304 tab sis muaj niobium los txo cov chromium carbide nag thaum lub sijhawm vuam thiab thermal raug. Nws muaj txiaj ntsig zoo tshaj plaws thaum lub raj ua haujlwm hauv lossis rov qab dhau los ntawm qhov kub thiab txias. Nws tsis yog qhov hloov pauv thoob ntiaj teb rau 304L, 316L lossis 321. Qhov kev xaiv raug nyob ntawm qhov kub thiab txias, corrosive medium, weld configuration, siab tsim thiab tswj hwm cov lus qhia.

SAKY STEEL muab cov yeeb nkab tsis muaj qhov thiab welded stainless hlau hauv 304, 304L, 316L, 321, 347, 347H, 310S thiab lwm yam qib. Cov ntaub ntawv zoo muaj xws li EN 10204 3.1 MTC, PMI cov ntaub ntawv, cov ntaub ntawv ntsuas qhov ntev, cov ntaub ntawv kuaj hydrostatic lossis nondestructive, cov ntaub ntawv kho cua sov thiab cov ntaub ntawv tshuaj xyuas thib peb raws li cov lus qhia yuav khoom.

347 Stainless Steel Tube Yog Dab Tsi?

347 stainless hlau yog ib qho austenitic chromium-nickel alloy stabilized nrog niobium, keeb kwm kuj tau piav qhia hauv qee cov lus qhia siv lub sijhawm columbium. Niobium muaj zog dua rau carbon dua li chromium. Thaum lub sijhawm tswj kev tsim khoom thiab tom qab ntawd cua sov raug, nws tsim cov niobium carbides ruaj khov, pab khaws cia chromium ze ntawm cov ciam teb noob.

Qhov kev ruaj khov no tseem ceeb vim tias cov hlau tsis xeb austenitic uas tsis ruaj khov tuaj yeem ua rau muaj kev cuam tshuam tom qab vuam lossis raug rau qhov kub nruab nrab ntev. Chromium carbides tuaj yeem ua rau muaj kev kub ntxhov ntawm cov ciam teb ntawm cov noob, ua rau cov cheeb tsam uas tsis muaj chromium raug kev puas tsuaj los ntawm kev xeb intergranular. Qib 347 txo qhov kev pheej hmoo no thaum cov tshuaj lom neeg, kev kho cua sov thiab cov txheej txheem tsim khoom raug tswj hwm kom zoo.

Cov Ntaub Ntawv Khoom thiab Cov Kev Qhia Tshwj Xeeb

Khoom	Qhov Yuav Tsum Tau Ua	Daim Ntawv Qhia Txog Tus Neeg Yuav Khoom
Qib	347 / UNS S34700	Tsis txhob txais daim ntawv pov thawj uas tsuas qhia tias "stainless steel" lossis "18-8."
Daim Ntawv Khoom	Seamless raj, welded raj, cua sov exchanger raj lossis siab yeeb nkab	Xaiv tus qauv uas phim cov khoom tiag tiag.
Qhov Loj	OD × phab ntsa tuab × ntev, nrog rau kev lees paub kev kam rau siab	Qhov loj me ib leeg xwb yuav tsis txhais tau cov raj xa cua sov kom raug.
Nto	Pickled, ci ntsa iab annealed, polished lossis project-specific clean finish	Qhia meej cov kev xav tau ntawm sab hauv thiab sab nraud nyias muaj nyias.
Mob	Kev daws teeb meem-annealed mob raws li qhov kev txiav txim specification	Tshuaj xyuas cov ntaub ntawv kho cua sov uas qhov kev pabcuam kub siab yog qhov tseem ceeb.

Cov Tshuaj Lom Zem

Qhov txawv ntawm 347 thiab 18Cr-8Ni stainless qib dav dav yog niobium stabilization. Raws li cov lus qhia dav dav hauv kev lag luam, qhov yuav tsum tau ua niobium-plus-tantalum yog cuam tshuam nrog cov pa roj carbon thiab raug tswj hwm hauv cov qauv khoom siv. MTC tiag tiag yuav tsum tau tshuaj xyuas vim tias kev lees paub qib tsis tuaj yeem raws li qhov tsos.

Qib	C	Cr	Ni	Nb + Ta	Lub Luag Haujlwm Txog Kev Txawj Ntse
347 / S34700	Tswj los ntawm cov lus qhia tshwj xeeb; feem ntau txog li 0.08%	Feem ntau yog 17.0-19.0%	Feem ntau yog 9.0-13.0%	Kev ntxiv kom ruaj khov khi rau cov ntsiab lus carbon raws li tus qauv siv tau	Txo qhov kev rhiab heev thiab kev pheej hmoo ntawm kev xeb intergranular tom qab raug cua sov.
347H / S34709	Tswj cov pa roj carbon ntau dua raws li cov lus qhia tshwj xeeb	Cov chromium sib piv ntau yam	Cov nickel sib piv tau	Niobium ruaj khov	Siv rau qhov chaw uas xav tau lub zog kub thiab tus cwj pwm nkag siab.

Cov nqi uas tau qhia yog cov ntaub ntawv qhia txog tus qauv, tsis yog ib qho kev hloov pauv rau tus qauv tswj hwm. Kev lees txais zaum kawg yuav tsum yog raws li daim ntawv xaj yuav khoom, tsab ntawv siv tau ntawm tus qauv thiab kev tshuaj xyuas qhov kub tiag tiag.

Cov Khoom Siv Kho Tshuab thiab Kub Siab

Thaum sov li chav tsev, 347 raj muaj cov khoom siv kho tshuab sib piv rau lwm cov qib austenitic stainless. Nws tus nqi yuav khoom tshwm sim thaum lub sijhawm welded siab-kub kev pabcuam. Niobium stabilization txhawb nqa kev tiv thaiv rau kev rhiab heev, thaum lub qauv austenitic muab cov ductility muaj txiaj ntsig, kev ua haujlwm tsim khoom thiab kev tawv.

Vaj tse	Qhov Yuav Tsum Tau Ua lossis Tus cwj pwm ib txwm muaj	Kev Txheeb Xyuas Txog Kev Yuav Khoom
Lub zog tensile	Cov lus qhia tshwj xeeb ntawm cov raj xa dej teev cov nqi tensile tsawg kawg nkaus hauv chav sov.	Saib qhov tshwm sim tiag tiag thiab qhov kev taw qhia ntawm cov qauv ntawm MTC.
Lub Zog Tawm	Tswj raws li tus qauv khoom, phab ntsa tuab thiab mob.	Muaj feem xyuam rau kev tsim qauv siab, kev nthuav dav ntawm lub raj thiab kev tsim khoom.
Kev ntev	Zoo ductility nyob rau hauv cov kua-annealed mob.	Txhawb kev khoov, flaring, tube-sheet expansion thiab welding.
Kev Ruaj Ntseg Thermal	Zoo dua qhov tsis kam rau kev ua xua piv rau cov qauv tsis ruaj khov-carbon 304.	Tseem ceeb rau kev vuam ntau zaus thiab kev raug kub siab tas mus li.

Cov Qauv Siv Tau thiab Cov Qib Siv Tau

Ib qho yuam kev uas cov neeg yuav khoom feem ntau ua yog kev txiav txim siv tsuas yog "347 raj." Tus qauv khoom txhais cov kev tsim khoom, qhov loj me, kev kho cua sov, kev sim thiab kev lees txais. ASTM A213 feem ntau siv rau cov raj ferritic thiab austenitic alloy-steel seamless, superheater thiab cov raj hloov pauv cua sov. ASTM A269 hais txog cov raj austenitic stainless seamless thiab welded rau kev pabcuam dav dav. ASTM A312 siv rau cov raj austenitic stainless seamless, welded thiab ua haujlwm txias heev es tsis yog cov raj precision.

Lub Npe	Siv ua piv txwv	Qhov Scope Ib Txwm Muaj	Daim Ntawv Qhia Txog Tus Neeg Yuav Khoom
347	UNS S34700	Niobium-stabilized austenitic stainless hlau.	Xyuas kom meej tias cov tshuaj lom neeg thiab niobium ruaj khov.
347H	UNS S34709	Kev pabcuam siab kub dua qhov twg lub zog kub siab tau teev tseg.	Tsis txhob hloov 347 thiab 347H yam tsis tau kev pom zoo los ntawm engineering.
ASTM A213 / ASME SA213 TP347	Tus qauv khoom raj	Cov raj xa dej tsis muaj seamless, superheater thiab cov raj xa dej kub-exchanger.	Paub meej tias OD, phab ntsa, txoj kev sim thiab kev kho cua sov.
ASTM A269 TP347	Tus qauv kev pabcuam dav dav	Cov kav dej austenitic stainless hlau uas tsis muaj qhov sib txuas lossis vuam.	Xyuas seb qhov kev pabcuam pressure-code puas xav tau lwm tus qauv.
Cov Lus Qhia Txog Tebchaws Europe	1.4550 / X6CrNiNb18-10	Cov ntaub ntawv siv dav dav hauv Tebchaws Europe rau cov hlau tsis xeb austenitic ruaj khov.	Yuav tsum tau kuaj xyuas cov ntaub ntawv sib npaug zos raws li tus qauv ntawm qhov project.

Daim Ntawv Teev Cov Ntawv Pov Thawj thiab Kev Tshawb Xyuas Cov Khoom Siv

Kev nrhiav tau cov khoom siv yog qhov tseem ceeb vim tias 304, 321 thiab 347 cov raj muaj cov tsos zoo sib xws. Kev cim tus lej kub yuav tsum txuas nrog MTC los ntawm kev txiav, kev tshuaj xyuas, kev sib sau ua ke thiab kev ntim khoom. Rau cov xaj khoom project, kev tswj cov khoom siv tiv thaiv cuav yuav tsum suav nrog kev tshuaj xyuas daim ntawv lo, kev txheeb xyuas PMI thiab kev sib phim cov ntaub ntawv ua ntej xa khoom.

Daim Ntawv Pov Thawj Khoom	Yuav Tsum Tau Tshawb Xyuas	Kev Pheej Hmoo Tswj Tau
EN 10204 3.1 MTC	Qib, tus qauv, tus lej cua sov, qhov ntev, tshuaj lom neeg, cov txiaj ntsig tensile thiab kev kho cua sov.	Qib tsis raug los yog daim ntawv pov thawj tsis tiav.
Daim Ntawv Qhia Txog PMI	Paub meej tias chromium, nickel thiab niobium teb rau qib pom zoo.	Sib tov 347 nrog 304, 321 lossis lwm qib austenitic.
Daim Ntawv Qhia Txog NDT	Kev kuaj tam sim no eddy, ultrasonic, hydrostatic lossis pneumatic raws li qhov xav tau.	Cov teeb meem ntawm phab ntsa lossis txoj kev xau uas tsis pom.
Daim Ntawv Qhia Txog Qhov Ntev	OD, phab ntsa tuab, ntev, ncaj thiab ovality qhov twg teev tseg.	Kev sib haum ntawm cov ntawv raj, kev vuam tsis sib xws thiab kev tsis lees paub ntawm kev tsim khoom.
Kev Tshuaj Xyuas Los Ntawm Sab Nraud	Tshuaj xyuas cov ntaub ntawv, cov ntaub ntawv, kev sim, kev cim thiab kev ntim khoom ua ntej xa tawm.	Kev tsis sib haum xeeb txog kev ua raws li txoj cai thiab qhov xwm txheej ntawm kev xa khoom.

Kev Sib Piv Nrog Cov Qib Stainless Zoo Sib Xws

347 tsis yog lub raj xa dej zoo tshaj plaws rau txhua lub tshuab cua sov. 304L tej zaum yuav txaus rau cov khoom siv vuam uas tsis raug rau qhov kub thiab txias tom qab ntawd. 321 siv titanium stabilization thiab ua haujlwm zoo sib xws rau qhov kub thiab txias. 316L ntxiv molybdenum rau kev tiv thaiv zoo dua hauv ntau qhov chaw muaj chloride tab sis tsis yog niobium stabilized.

Qib	Qhov Zoo Tshaj Plaws	Kev txwv	Cov Lus Qhia Zoo Tshaj Plaws Rau Kev Siv
304L	Cov pa roj carbon tsawg, weldability zoo thiab muaj dav.	Tsis ruaj khov rau kev raug kub ntev.	Cov yeeb nkab vuam dav dav ntawm qhov kub thiab txias nruab nrab.
321	Titanium stabilization thiab keeb kwm kev pabcuam zoo thaum kub siab.	Kev tswj hwm titanium yuav cuam tshuam rau qee qhov kev txiav txim siab yaj thiab kev tsim khoom.	Cov pa tawm, kev caij tsheb kauj vab thermal thiab cov khoom siv kub siab welded.
347	Niobium stabilization thiab muaj zog haum rau welded thermal kev pabcuam.	Tus nqi siab dua thiab cov khoom lag luam tsawg dua li 304L.	Cov kav dej vuam kub thiab cov khoom siv siab.
316L	Molybdenum txhim kho kev tiv thaiv hauv ntau cov chloride thiab cov tshuaj lom neeg ib puag ncig.	Tsis yog siv los ua ib qho kev hloov pauv ruaj khov rau 347.	Cov kav dej tshuaj lom neeg thiab cov txheej txheem uas qhov chaw xeb yog qhov teeb meem tseem ceeb.

Cov Ntawv Thov Kev Lag Luam

Daim Ntawv Thov	Kev Xaiv Ib Txwm	347 Tube Kev Pab Cuam	Kev Qhia Tshwj Xeeb
Cov raj Boiler thiab Superheater	304H lossis lwm qib austenitic uas tiv taus cua sov	Cov tshuaj lom neeg ruaj khov txhawb nqa kev pabcuam welded kub siab.	ASTM A213 lossis ASME SA213, kev tsim qauv siab thiab cov ntawv qhia kev xeem.
Cov Khoom Siv Petrochemical	304L lossis 321 nyob ntawm seb qhov kev pabcuam yog dab tsi	Txhim kho kev tiv thaiv rau kev ua kom hnov ​​​​​​mob nyob ib puag ncig cov pob qij txha welded.	Kub, txheej txheem nruab nrab, txheej txheem vuam thiab kev tso cai xeb.
Cov Khoom Siv Pa Tawm Hauv Huab Cua	321 stainless hlau	Niobium stabilization rau kev rov ua dua cua sov thiab vuam voj voog.	Kev kam rau nyias phab ntsa, kev huv, cov txheej txheem weld thiab kev taug qab.
Cov Khoom Siv Hloov Kub Kub	304L los yog 316L	Zoo dua qhov twg kev ua kom sov sov ua rau muaj kev cuam tshuam loj.	Txoj kev siv daim ntawv raj, NDT, qhov xwm txheej ntawm qhov chaw thiab kev pabcuam chemistry.

Cov Kauj Ruam Qhia Txog Tus Neeg Yuav Khoom

✅ Qhia seb qhov yuav tsum tau ua yog raj lossis yeeb nkab thiab xaiv tus qauv khoom sib xws.

✅ Qhia meej txog 347 lossis 347H; tsis txhob pub hloov pauv yam tsis tau kev pom zoo los ntawm kws tsim khoom.

✅ Txhais OD, phab ntsa tuab, ntev, kam rau siab, nto thiab qhov kawg.

✅ Sau cov kev ntsuam xyuas uas yuav tsum tau ua, suav nrog eddy current, UT, hydrostatic testing, PMI lossis intergranular corrosion testing qhov twg siv tau.

✅ Yuav tsum tau hloov tus lej kub, sib phim MTC, thaij duab ntim khoom thiab qhia meej txog pob khoom.

Cov Yuam Kev Feem Ntau ntawm Cov Neeg Yuav Khoom

Kev txiav txim los ntawm qib xwb:"347 raj" tsis txhais cov kev tsim kho tsis muaj qhov txuas lossis vuam, qhov ntev, kev sim lossis kev pabcuam siab.

Tsis meej pem 347 nrog 347H:Cov qib no ua haujlwm rau ntau yam kev tsim qauv. Kev xam qhov kub siab yuav nyob ntawm qib tseeb thiab cov cai tswjfwm.

Tsis quav ntsej txog niobium ntawm MTC:Daim ntawv pov thawj uas tsis muaj cov ntaub ntawv ruaj khov tsis tuaj yeem qhia tau qhov tshwj xeeb ntawm qib 347.

Xav tias PMI hloov kev tshuaj xyuas tshuaj lom neeg tag nrho:PMI muaj txiaj ntsig zoo rau kev txheeb xyuas cov hlau sib xyaw, tab sis cov khoom sib dua thiab cov pa roj carbon xav tau cov txheej txheem kuaj mob kom zoo. Kev tshuaj xyuas cua sov thawj zaug tseem ceeb heev.

Tso NDT tsis qhia meej:Cov kev cai kuaj sib txawv raws li tus qauv, hom khoom thiab qhov tseem ceeb ntawm qhov project. Cov ntawv qhia uas yuav tsum tau ua yuav tsum tau txheeb xyuas ua ntej tsim khoom.

Cov Lus Nug Feem Ntau

Dab tsi ua rau 347 stainless hlau raj haum rau kev vuam?

Kev ruaj khov ntawm Niobium txwv tsis pub muaj chromium carbide precipitation ntawm cov ciam teb ntawm cov noob. Qhov no pab tswj kev tiv thaiv xeb hauv thaj chaw uas raug cua sov thaum lub raj sib dhos tiav lawm raug rau qhov kub siab dua.

Puas yog 347 stainless hlau tiv taus xeb ntau dua li 316L?

Tsis yog nyob rau hauv txhua qhov chaw ib puag ncig. Qib 347 raug xaiv rau kev ruaj khov thiab kev ua haujlwm vuam kub siab. Qib 316L muaj molybdenum thiab tej zaum yuav ua tau zoo dua hauv ntau cov xov xwm chloride. Kev xaiv yuav tsum ua raws li ob qho tib si kub thiab cov txheej txheem chemistry.

Puas siv tau 321 hloov 347?

321 thiab 347 yog ob qho tib si austenitic qib ruaj khov, tab sis ib qho siv titanium thiab lwm qhov siv niobium. Kev hloov pauv yuav tsum tau kev pom zoo los ntawm engineering vim tias cov lus qhia tshwj xeeb, cov txheej txheem vuam, kev muaj thiab cov ntaub ntawv tsim qauv kub siab yuav txawv.

Yuav tsum tau thov daim ntawv pov thawj twg?

EN 10204 3.1 MTC feem ntau yog thov rau cov xaj lag luam. Cov khoom siv siab lossis cov haujlwm tseem ceeb kuj tseem yuav xav tau daim ntawv pov thawj 3.2, kev pom zoo los ntawm cov neeg thib peb, PMI, cov ntawv qhia NDT, cov ntaub ntawv kho cua sov thiab cov ntaub ntawv ntxiv txog qhov project.

Dab tsi yuav tsum muaj 347 stainless hlau raj RFQ suav nrog?

Suav nrog qib, UNS tus lej, ASTM lossis ASME tus qauv, kev tsim kho tsis sib txuas lossis vuam, OD, phab ntsa tuab, ntev, ntau npaum li cas, nto, kev kho cua sov, kev kam rau siab, kev sim, hom ntawv pov thawj, txoj kev ntim khoom thiab chaw nres nkoj mus.

Cov Khoom Siv Hlau Stainless Hlau

Khoom Muag Sib Xws	Cov Qib Kawm Sib Xws	Daim Ntawv Thov Ib Txwm Muaj
Cov Yeeb Nkab Hlau Tsis Muaj Hlau	304L, 316L, 321, 347, 310S	Cov kav dej siab, cov kab tshuaj lom neeg thiab cov kab ke kub siab.
Cov Hlau Stainless Hlau	304, 316L, 321, 347	Cov khoom siv hluav taws xob, boilers, kev tsim khoom thiab kev tsim khoom.
Stainless hlau Bar	304, 316L, 321, 347, 17-4PH	Cov khoom siv tshuab, cov khoom siv txuas, cov ncej thiab cov khoom siv thermal.

Xaus lus

347 stainless hlau raj muab kev daws teeb meem tswj rau cov khoom sib dhos welded uas raug rau qhov kub thiab txias. Nws cov tshuaj niobium-stabilized pab tiv thaiv kev xeb ntawm cov noob thaum tseem khaws cov txiaj ntsig ntawm kev tsim khoom ntawm cov hlau stainless austenitic. Kev yuav khoom txhim khu kev qha nyob ntawm kev xaiv cov qauv khoom raug, sib txawv 347 ntawm 347H, lees paub niobium ntawm MTC thiab txhais NDT ua ntej tsim khoom.