321 Cov Yeeb Nkab Hlau Stainless vs 304: Thaum Titanium Stabilisation Tseem Ceeb

Kev Taw Qhia

Xaiv ntawm321 Cov Yeeb Nkab Hlau Stainless vs 304feem ntau yog ib lo lus nug txog qhov kub thiab txias, qhov xwm txheej vuam thiab kev pheej hmoo ntawm kev xeb intergranular. 304 stainless hlau yeeb nkab yog qhov tsim nyog rau cov kav dej tiv taus xeb dav dav, kev ua zaub mov, cov txheej txheem dej thiab kev tsim khoom txheem. 321 stainless hlau yeeb nkab yog qhov zoo dua thaum cov yeeb nkab raug rau qhov kub thiab txias siab, rov ua dua thermal cycling lossis welded kev pabcuam qhov twg titanium stabilization pab txo cov chromium carbide sensitization.

Cov Ntsiab Lus Tseem Ceeb:304 muaj kev txuag nyiaj zoo dua thiab muaj ntau yam khoom siv rau kev pabcuam tus qauv. 321 ntxiv titanium, uas ua rau cov pa roj carbon ruaj khov thiab txhim kho kev ua haujlwm tom qab vuam lossis raug tshav kub ntev hauv qhov ntau ntawm kev rhiab heev. Rau cov kav dej sib pauv cua sov, cov khoom siv hauv lub cub tawg, cov tshuab tso pa tawm thiab cov kab tshuaj kub siab, 321 tuaj yeem muab kev ntseeg siab zoo dua mus sij hawm ntev. Rau cov kav dej kub qis, huab cua lossis cov kav dej corrosive me ntsis, 304 feem ntau yog qhov kev xaiv zoo.

SAKY STEEL muab cov yeeb nkab tsis xeb thiab cov yeeb nkab welded hauv 304, 304L, 321, 316L, 310S, 347 thiab lwm qib raws li ASTM, ASME, EN, JIS thiab GB yuav tsum tau ua. Daim ntawv pov thawj khoom siv, kev kuaj PMI, kev kuaj UT, kev tswj cua sov, kev ntim khoom xa tawm thiab kev tshuaj xyuas sab nraud tuaj yeem npaj tau raws li cov lus qhia ntawm qhov project.

321 Cov Yeeb Nkab Hlau Stainless Yog Dab Tsi?

321 cov yeeb nkab stainless hlau yog cov yeeb nkab austenitic stainless hlau uas ruaj khov nrog titanium. Hauv cov tshuaj lom neeg 321 ib txwm muaj, titanium raug ntxiv rau ntawm qib tswj kom sib xyaw nrog carbon yooj yim dua li chromium ua. Qhov no pab kom chromium muaj nyob hauv lub matrix, txhawb kev tiv thaiv corrosion ze ntawm cov chaw welded lossis tom qab raug rau qhov kub siab.

304 cov yeeb nkab stainless hlau kuj yog austenitic, tab sis nws tsis muaj titanium stabilization. Nws muab kev tiv thaiv corrosion zoo, weldability thiab kev ua tau zoo. Thaum cov yeeb nkab ua haujlwm ntawm qhov kub ib txwm lossis tsis raug rau cov xwm txheej sensitization, 304 tseem yog ib qho ntawm cov yeeb nkab stainless hlau siv dav tshaj plaws.

Rooj Xaiv Ib Sab Los Sis Ib Sab

Qhov Xaiv Tau	321 Cov Yeeb Nkab Hlau Stainless	304 Cov Yeeb Nkab Hlau Stainless	Cov Lus Qhia Zoo Tshaj Plaws Rau Kev Siv
Kev Ruaj Ntseg	Titanium ruaj khov.	Tsis yog titanium stabilized.	Siv 321 thaum cov yeeb nkab welded yuav ntsib kev kub siab.
Kev Pabcuam Kub Siab	Zoo dua rau kev pabcuam kub siab lossis kub ib puag ncig.	Haum rau kev pabcuam dav dav hauv qhov kub thiab txias.	Xaiv 321 rau cov pa tawm, lub cub tawg thiab cov kav dej ua haujlwm thermal.
Tus nqi	Tus nqi khoom siv siab dua thiab cov khoom muag tsawg dua.	Tus nqi qis dua thiab yooj yim dua.	Xaiv 304 thaum tsis tas yuav tsum tau tswj qhov kub thiab txias.
Kev Pabcuam Welded	Zoo dua tsis kam rau intergranular corrosion tom qab welding.	Siv tau rau cov kav dej vuam dav dav hauv qab cov xwm txheej ib txwm muaj.	Rau kev vuam hnyav ntxiv rau kev raug cua sov, 321 muaj kev nyab xeeb dua.

Cov Tshuaj Lom Zem

Qhov sib txawv ntawm cov tshuaj lom neeg tseem ceeb ntawm 321 thiab 304 yog titanium. Raws li cov qauv kev lag luam rau cov khoom siv yeeb nkab austenitic stainless, 321 muaj titanium ntawm qib uas cuam tshuam nrog cov ntsiab lus carbon, feem ntau qhia tias yog qhov yuav tsum tau ua kom ruaj khov. Qhov ntxiv titanium no yog qhov laj thawj 321 ua haujlwm txawv thaum cov yeeb nkab raug rau qhov kub thiab txias uas yuav muaj chromium carbide nag lossis daus.

Qib	UNS	C	Cr	Ni	Ti	Lub Ntsiab Lus Txog Kev Txawj Ntse
304	S30400	≤0.08	18.0-20.0	8.0-11.0	Tsis tas yuav tsum muaj	Cov yeeb nkab austenitic stainless hlau rau lub hom phiaj dav dav.
321	S32100	≤0.08	17.0-19.0	9.0-12.0	Kev ntxiv kom ruaj khov	Zoo dua qub kev tiv thaiv rau kev ua xua tom qab vuam lossis raug cua sov.

Yuav tsum tau kuaj xyuas cov tshuaj lom neeg kawg raws li tus qauv thiab EN 10204 3.1 MTC. Rau 321 yeeb nkab, cov neeg yuav khoom yuav tsum tau them sai sai rau cov ntsiab lus titanium, qib carbon, tus lej cua sov thiab PMI cov txiaj ntsig, vim tias qib hloov nrog 304 yuav tshem tawm cov txiaj ntsig ruaj khov.

Cov Khoom Siv Kho Tshuab

Thaum sov li chav tsev, cov yeeb nkab stainless hlau 321 thiab 304 muaj kev ua tau zoo sib xws hauv ntau yam xwm txheej txheem. Qhov sib txawv no muaj txiaj ntsig ntau dua thaum raug cua sov. 321 raug xaiv tsis yog vim nws muaj zog heev ntawm chav tsev kub, tab sis vim nws cov tshuaj lom neeg ruaj khov pab tswj kev tiv thaiv xeb hauv kev vuam lossis kev pabcuam kub siab.

Qib	Lub Zog Tensile Ib Txwm Muaj	Lub Zog Tawm Los Ib Txwm Muaj	Kev ntev	Cov Lus Qhia Txog Kev Tsim Kho
304 Yeeb Nkab	Sib piv rau cov qauv austenitic stainless yeeb nkab uas yuav tsum tau ua	Zoo rau kev siab dav dav thiab kev pabcuam tsim khoom	Kev ua tau zoo	Pheej yig rau cov kav dej kub ib txwm.
321 Yeeb Nkab	Piv rau 304 hauv ntau tus qauv mob	Zoo rau kev tsim cov kav dej kub siab thaum teev tseg	Kev ua tau zoo	Xaiv rau kev ruaj khov titanium, tsis yog lub zog yooj yim hauv chav sov.

Cov Qauv Siv Tau

Ob qho tib si 321 thiab 304 cov yeeb nkab tsis xeb tuaj yeem muab tau raws li cov qauv yeeb nkab, nyob ntawm seb puas muaj kev sib khi lossis vuam. Cov neeg yuav khoom yuav tsum qhia meej cov qauv khoom, qib, sijhawm, qhov loj ntawm cov yeeb nkab, qhov yuav tsum tau kuaj thiab hom ntawv pov thawj. Lub npe qib ib leeg tsis txaus rau kev txiav txim B2B tswj hwm.

Qib	UNS	EN / DIN Siv	JIS Siv	Cov Qauv Yeeb Nkab Sib Xws
304	S30400	1.4301 / X5CrNi18-10	SUS304	ASTM A312, ASTM A269, ASTM A213, ASME SA312, EN 10216-5, EN 10217-7
321	S32100	1.4541 / X6CrNiTi18-10	SUS321	ASTM A312, ASTM A269, ASTM A213, ASME SA312, EN 10216-5, EN 10217-7

Kev Ntsuas Zoo thiab Kev Tshawb Xyuas Cov Khoom Siv

Rau 321 stainless hlau yeeb nkab piv rau 304 kev yuav khoom, kev taug qab yog qhov tseem ceeb vim tias qhov pom ntawm ob qib zoo sib xws. Qhov sib txawv yuav tsum tau txheeb xyuas los ntawm kev tshuaj ntsuam xyuas tshuaj lom neeg, MTC thiab PMI kev xeem. Tus neeg muag khoom txhim khu kev qha yuav tsum tswj cov lej kub hloov pauv thaum txiav, cim, ntim khoom thiab xa khoom.

Khoom Tshuaj Xyuas	Lub Hom Phiaj	Daim Ntawv Qhia Txog Tus Neeg Yuav Khoom
EN 10204 3.1 MTC	Paub meej tias qib, tus lej cua sov, chemistry thiab cov ntaub ntawv kho tshuab.	Xyuas cov ntsiab lus Ti rau 321 thiab phim tus lej cua sov nrog cov cim yeeb nkab.
Kev Ntsuas PMI	Tiv thaiv cov khoom sib xyaw thiab kev xa khoom tsis raug.	Thov PMI ua ntej xa khoom rau cov yeeb nkab 321 uas tseem ceeb rau qhov project.
UT / Eddy Tam Sim No / Hydro Test	Tshawb xyuas qhov ruaj khov ntawm cov yeeb nkab raws li cov duab khoom thiab tus qauv.	Paub meej tias txoj kev xeem, qib kev lees txais thiab qhov yuav tsum tau ua ntawm daim ntawv qhia.
Kev Tshuaj Xyuas Los Ntawm Sab Nraud	Txhawb kev lees txais qhov project thiab kev tswj cov khoom siv cuav.	SGS, BV, TUV lossis kev tshuaj xyuas los ntawm cov neeg siv khoom tuaj yeem npaj tau.

Kev Sib Piv Txog Kev Xeb, Lub Zog thiab Tus Nqi

304 thiab 321 ob leeg koom nrog tsev neeg Cr-Ni austenitic stainless. Lawv qhov kev tiv thaiv corrosion hauv huab cua zoo sib xws hauv ntau qhov chaw tsis hnyav. Qhov sib txawv ntawm kev siv tshwm sim thaum vuam thiab kev raug cua sov ua rau muaj kev pheej hmoo ntawm kev ua xua. 321 tsis yog kev hloov kho thoob ntiaj teb rau txhua daim ntawv thov 304; nws yog cov khoom siv rau kev pabcuam kub.

Khoom sib piv	304 Cov Yeeb Nkab Hlau Stainless	321 Cov Yeeb Nkab Hlau Stainless	Kev Xaiv Txoj Cai
Kev xeb dav dav	Zoo nyob rau hauv ntau qhov chaw sab hauv tsev thiab chaw ua haujlwm tsis muaj zog.	Kev tiv thaiv xeb zoo sib xws, nrog rau kev ruaj khov zoo dua tom qab raug cua sov.	Siv 304 tshwj tsis yog tias qhov kub siab ua rau khaus khaus yog qhov txhawj xeeb.
Kev Ruaj Ntseg Kub Siab	Tej zaum yuav muaj kev phom sij rau kev ua xua tom qab raug cua sov.	Titanium stabilization txhim kho kev tiv thaiv rau intergranular corrosion.	Siv 321 rau kev hloov pauv cua sov, cov pa tawm lossis cov kav dej uas cuam tshuam nrog lub cub tawg.
Tus nqi thiab qhov muaj	Tus nqi qis dua, ntau yam khoom lag luam.	Tus nqi siab dua, kev npaj tsim khoom tshwj xeeb dua.	Tsis txhob teev ntau dhau 321 rau cov kab ke yooj yim uas tsis kub heev.

Cov Ntawv Thov Kev Lag Luam

Kev xaiv cov khoom siv yuav tsum pib los ntawm qhov kub ua haujlwm, cov khoom siv corrosive, qhov ntau ntawm kev vuam thiab tus nqi txij nkawm. Cov lus hauv qab no piv rau kev xaiv cov yeeb nkab siv tau hauv cov haujlwm B2B feem ntau.

Daim Ntawv Thov	Kev Xaiv Ib Txwm	Kev Xaiv Pom Zoo	Vim Li Cas Kev Txawj Ntse
Cov Kav Dej thiab Khoom Noj	304	304 los yog 304L	Tsis muaj qhov xav tau titanium stabilization hauv qhov kub thiab txias ib txwm muaj.
Cov Yeeb Nkab Pa Tawm thiab Cov Yeeb Nkab Thermal Cycling	304	321	Kev raug cua sov ua rau titanium stabilization muaj txiaj ntsig zoo.
Kab Tshuaj Kub Siab	304 / 316	321, 316Ti lossis 347 nyob ntawm seb muaj pes tsawg hom xov xwm	Cov qib ruaj khov txo qhov kev pheej hmoo ntawm kev xeb intergranular tom qab vuam.
Lub Tshuab Hluav Taws Xob Exchanger	304	321 qhov twg qhov kub raug tas mus li	Txhim kho lub zog nyob ze ntawm cov cheeb tsam uas raug cua sov lossis cov cheeb tsam uas muaj kev ntxhov siab thermal.

Cov Kauj Ruam Xaiv Ua Tau

✅ Paub meej tias qhov kub thiab txias ntawm lub yeeb nkab puas yuav nyob hauv qhov kub siab ntev.

✅ Xyuas seb puas yog kev vuam, kev khoov, kev tsim lossis kev tsim khoom hauv thaj teb yuav tsim cov cheeb tsam uas raug cua sov.

✅ Siv 304 lossis 304L rau kev kho xeb dav dav hauv qhov kub ib txwm thaum tus nqi thiab qhov muaj yog qhov tseem ceeb.

✅ Siv 321 thaum xav tau titanium stabilization los ntawm qhov project specification lossis kev pabcuam mob.

✅ Thov kom MTC thiab PMI kuaj xyuas kom paub tseeb tias cov yeeb nkab 321 tsis tau hloov nrog 304.

Vim li cas ho xaiv qib yeeb nkab stainless hlau zoo?

Qhov kev xaiv zoo ntawm 321 thiab 304 cuam tshuam rau lub neej ua haujlwm, kev lees txais kev tshuaj xyuas thiab tag nrho cov nqi teeb tsa. Tus nqi yeeb nkab pib qis dua tuaj yeem kim dua yog tias qib tsis ua haujlwm hauv kev pabcuam kub siab. Cov yeeb nkab qib siab dua kuj tseem tuaj yeem nkim nyiaj txiag yog tias qhov chaw ua haujlwm tsis xav tau kev ruaj khov.

Rau kev yuav khoom B2B, RFQ yuav tsum qhia qib, UNS tus lej, ASTM lossis EN tus qauv, hom seamless lossis welded, OD, phab ntsa tuab lossis lub sijhawm, ntev, ntau npaum li cas, qhov xwm txheej ntawm qhov chaw, qhov yuav tsum tau kuaj, hom MTC, PMI qhov yuav tsum tau ua, txoj kev ntim khoom thiab chaw nres nkoj mus rau qhov chaw. SAKY STEEL tuaj yeem txhawb nqa kev tshuaj xyuas qhov project thiab pom zoo 304, 304L, 321, 316L, 310S lossis 347 raws li cov xwm txheej ua haujlwm.

Cov Lus Nug Feem Ntau

Cov yeeb nkab stainless hlau 321 puas zoo dua li 304?

321 zoo dua thaum xav tau titanium stabilization rau welded lossis kub siab. 304 zoo dua rau ntau lub raj xa dej dav dav uas tus nqi, muaj khoom thiab kev tiv thaiv corrosion txheem yog cov yam tseem ceeb.

Thaum twg titanium stabilization tseem ceeb?

Nws tseem ceeb thaum cov yeeb nkab hlau tsis xeb raug rau qhov kub thiab txias tom qab vuam lossis thaum lub sijhawm ua haujlwm. Hauv cov xwm txheej kev lag luam ib txwm muaj, qhov kev txhawj xeeb no tshwm sim hauv cov kab tso pa tawm, cov khoom siv cua sov, cov kav dej cua sov thiab cov txheej txheem thermal.

Puas yog 304L hloov tau 321?

304L txo cov pa roj carbon thiab pab ua kom vuam zoo, tab sis nws tsis zoo ib yam li titanium-stabilized 321. Rau kev pabcuam kub siab uas qhov kev qhia tshwj xeeb hu rau 321, kev hloov pauv yuav tsum tau pom zoo los ntawm tus kws ua haujlwm project.

Cov ntaub ntawv twg cov neeg yuav khoom yuav tsum tau thov?

Cov neeg yuav khoom yuav tsum thov EN 10204 3.1 MTC, cim tus lej kub, cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, daim ntawv qhia PMI, kev tshuaj xyuas qhov ntev, UT lossis daim ntawv qhia kev xeem hydrostatic qhov twg xav tau, thiab cov duab ntim khoom ua ntej xa khoom.

Cov Kev Txuas Khoom Sib Xws

Khoom Muag Sib Xws	Cov Qib Ib Txwm Muaj	Daim Ntawv Thov
Cov Yeeb Nkab Hlau Tsis Muaj Hlau	304, 304L, 316L, 321, 310S	Cov kav dej lag luam, cov khoom siv tshuaj lom neeg, kev tsim kho thiab cov tshuab.
Cov Hlau Stainless Hlau	304, 316L, 321, 347	Cov khoom siv hloov cua sov, cov cuab yeej siv, cov tshuab ua zaub mov thiab kev tsim khoom.

Xaus lus

Cov yeeb nkab hlau tsis xeb 321 tau txais nws qhov chaw thaum titanium stabilization tiv thaiv cov khoom siv los ntawm kev pheej hmoo ntawm kev kub ntxhov. 304 tseem yog qhov kev xaiv zoo thiab pheej yig rau cov yeeb nkab uas tiv taus xeb. Qhov kev txiav txim siab zoo yog nyob ntawm qhov kub, vuam, xov xwm, cov qauv thiab cov kev cai tshuaj xyuas es tsis yog lub npe qib ib leeg.