Vim li cas thiaj xaiv 1.4571 (316Ti) stainless hlau?

Apr 02, 2026

Tso lus

1.4571 stainless hlau, feem ntau hu ua 316Ti los yog UNS S31635, yog titanium-stabilized version ntawm tus qauv 316 molybdenum-alloyed austenitic stainless hlau. Qhov sib ntxiv ntawm titanium txhim khu kev tiv thaiv rau intergranular corrosion tom qab vuam los yog raug kub kub, combining zoo heev corrosion kuj ntawm 316 nrog stabilization cov txiaj ntsig ntawm titanium. Qhov no ua rau nws zoo tagnrho rau welded Cheebtsam hauv tshuaj, tshuaj, thiab siab -kub daim ntaub ntawv uas post-weld heat treatment yog impractical.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4571
ASTM / AISI (USA)	316 Ti, UNS S31635
JIS (Nyiv)	SUS 316 Ti
KS (Korea)	STS 316 Ti
Lub Npe	316 Ti

Element	C	Si	Mn	P	S	Cr	Ni	Mo	Ti
Cov ntsiab lus (%)	Tsawg dua los yog sib npaug li 0.08	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 2.0	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.03	16.5 - 18.5	10.5 - 13.5	2.0 - 2.5	Ntau dua lossis sib npaug li 5xC

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	Ntau tshaj lossis sib npaug li 200 MPa	500 - 700 MPa	Ntau dua lossis sib npaug li 40%	Tsawg dua lossis sib npaug li 215

Intergranular Corrosion kuj:Titanium tiv thaiv chromium carbide tsim ntawm cov ciam teb thaum lub sij hawm raug kub ntawm 450-850 degree, tswj corrosion kuj nyob rau hauv welded lug.

Enhanced Pitting Resistance:Cov ntsiab lus molybdenum (2-2.5%) muab kev tiv thaiv zoo tshaj rau chloride-induced pitting thiab crevice corrosion piv rau cov qib tsis molybdenum.

Zoo Siab -Tsub Ua Haujlwm:Haum rau kev pabcuam sib cuam tshuam txog li 850℃thiab kev pabcuam txuas ntxiv mus txog 750℃nrog kev ua haujlwm zoo oxidation.

Zoo heev Formability thiab Weldability:tuaj yeem welded los ntawm txhua txoj hauv kev yam tsis tas yuav tsum muaj kev tshaj tawm -weld kev kho cua sov, ua rau nws zoo tagnrho rau hnyav welded fabrications.

Tshuaj thiab Petrochemical:Welded hlab ntsha, cua sov exchangers, thiab kav kav dej tuav cov tshuaj corrosive ntawm siab kub.

Pharmaceutical:Cov cuab yeej siv ua kom tsis muaj cua sov ntau zaus thiab yuav tsum tau ua kom muaj purity siab.

Marine & Coastal:Cheebtsam raug rau dej hiav txwv los yog ntsev-laden cua nyob qhov twg vuam yuav tsum tau.

Kev tsim hluav taws xob:Boiler Cheebtsam, superheater qhov chaw, thiab feedwater heaters.

Automotive:Exhaust systems thiab cov khoom raug raug kub siab.

Kev ua zaub mov:Cov cuab yeej xav tau kom tsis muaj menyuam thiab tiv thaiv corrosion.

Lub ntsiab kom zoo dua yog nws stabilization tiv thaiv rhiab heev thaum vuam. Standard 316 tuaj yeem ntsib chromium carbide nag lossis daus hauv tshav kub- cuam tshuam thaj tsam thaum vuam, uas ua rau muaj kev cuam tshuam ntawm intergranular corrosion. Cov titanium hauv 316Ti tsim cov carbides ruaj khov, tiv thaiv chromium depletion thiab tswj kev tiv thaiv corrosion tsis tas yuav tsum tau tom qab-weld heat treatment. Qhov no ua rau 316Ti qhov kev xaiv zoo tshaj plaws rau cov khoom hnyav welded thiab cov khoom siv uas yuav ua haujlwm hauv qhov kub thiab txias (450-850 degree) lossis hauv qhov chaw corrosive tom qab vuam.

316Ti muaj kev tiv thaiv zoo rau chloride nres, zoo dua li 304 qib, vim nws cov ntsiab lus molybdenum. Txawm li cas los xij, rau kev nkag mus rau hauv dej hiav txwv tsis tu ncua lossis cov tshuaj chloride hnyav heev ntawm qhov kub siab, cov ntaub ntawv alloyed ntau dua li super duplex (2507) lossis super austenitic (904L, 6% Mo qib) tuaj yeem raug pom zoo. 316Ti ua tau zoo hauv thaj chaw txaws, thaj chaw ntug dej hiav txwv, thiab tshwj xeeb tshaj yog nyob rau hauv kev siv tshuaj chlorine. stabilization muab kev tiv thaiv ntxiv. Rau cov ntawv thov dej hiav txwv hauv dej tag nrho ntawm qhov kub thiab txias, 316Ti tuaj yeem siv tau tab sis nrog kev tsim qauv zoo kom tsis txhob muaj kev sib tsoo.

316Ti muaj qhov zoo tshaj plaws weldability siv txhua txoj hauv kev xws li TIG, MIG, SMAW, thiab SAW. Cov ntsiab lus tseem ceeb suav nrog:

Muab cov hlau sib txuam (ER316Ti lossis ER316L) raug pom zoo

Tsis muaj kev tshaj tawm -weld cua sov yuav tsum tau kho vim titanium stabilization

Pom zoo cua sov input: 0.5-2.0 kJ / mm

Interpass kub yuav tsum khaws cia qis dua 150 degree

Tiv thaiv roj (argon lossis argon nrog 2-5% nitrogen) tiv thaiv lub pas dej ua ke

Tshaj tawm -welding tu thiab pickling / passivation yog pom zoo rau qhov zoo tshaj plaws corrosion kuj

GNEE Steel muab cov khoom siv siab - zoo 316Ti (1.4571) stainless hlau hauv phaj, ntawv, yeeb nkab, raj, bar, thiab cov ntaub ntawv haum, zoo tagnrho rau cov ntawv thov welded uas xav tau kev txhim kho corrosion. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab cov kev pabcuam ua tiav nrog rau kev txiav, khoov, sib sau, thiab vuam. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.