SUS316Ti Stainless Hlau Kev Paub

SUS316Ti yog titanium-stabilized variant ntawm SUS316, muaj 0.10-0.30% Ti. Titanium khi nrog cov pa roj carbon monoxide, tiv thaiv chromium carbide nag lossis daus, txhim kho kev tiv thaiv corrosion ntawm lub sijhawm siab, tsim rau ntev - lub sijhawm ua haujlwm kub kub.

Chemical Composition (wt%): C ≤0.08, Si ≤1.00, Mn ≤2.00, P ≤0.045, S ≤0.030, Cr=16.00-18.00, Ni=10.00-14.00, Mo=2.00-3.00, Ti=0.10-0.30, Fe=Balance

Mechanical PropertiesLub zog tensile ≥515MPa, Yield Strength ≥205MPa, Elongation ≥40%, Hardness (HB) ≤217

Kev Ua Haujlwm Zoo: Zoo heev -temp intergranular corrosion kuj; superior creep kuj vs SUS316; zoo chloride corrosion kuj; ruaj khov ntawm 400-900 ° C.

Qib sib npaugASTM A 240 316Ti, EN 1.4571, UNS S31635

Daim ntawv thov: High-kub kub exchanger raj, chemical furnace tubes, boiler superheaters, nuclear fais fab nroj tsuag Cheebtsam, tso systems ntawm high-kev ua tau zoo engine.

FAQ

1. Q: Yuav ua li cas titanium ruaj khov SUS316Ti thaum kub kub? A: Titanium (0.10-}0.30%) muaj affinity ntau dua rau cov pa roj carbon ntau dua chromium, ua TiC hloov Cr₂₃C₆. Ntawm 400{10}}900 ° C, SUS316 tsim chromium carbides ntawm cov ciam teb nplej, ua rau muaj kev cuam tshuam ntawm intergranular. SUS316Ti's TiC tiv thaiv qhov no, ua kom Cr sib npaug. Qhov kev ruaj khov no ua kom muaj kev tiv thaiv corrosion nyob rau hauv lub sij hawm ntev kev pab cuam siab kub (xws li, rauv cov hlab ua haujlwm 24/7 ntawm 600 ° C).

2. Q: SUS316Ti piv rau SUS316H thiab SUS316L li cas? A: vs SUS316H: Ob leeg muaj qhov zoo siab -temp lub zog, tab sis SUS316Ti muaj kev cuam tshuam zoo dua intergranular corrosion tsis muaj ncej-weld annealing. vs SUS316L: SUS316Ti muaj siab dua -temp lub zog thiab nkag siab, thaum SUS316L yog qhov zoo dua rau qis temps. SUS316Ti yog qhov zoo tagnrho rau siab -temp welded qauv (kub exchangers), ntsuas lub zog thiab corrosion vs lwm yam.

3. Q: Puas tuaj yeem siv SUS316Ti hauv nuclear fais fab nroj tsuag? A: Yog, nws tau siv hauv cov khoom siv hluav taws xob thib ob. Nws Ti stabilization tiv thaiv corrosion los ntawm siab -temp dej / chav dej, thiab Mo txhim kho cov tshuaj chloride. Nws ua tau raws li cov qauv kev nyab xeeb nuclear rau kev nqus hluav taws xob tsawg. Nws creep tsis kam ntawm 300-400 ° C ua kom muaj kev ntseeg ruaj khov rau 30+ xyoo. Tsis zoo li SUS316, nws zam kev cuam tshuam ntawm kev cuam tshuam hauv kev ua haujlwm ntev -lub sij hawm high-temperature nuclear kev pab cuam.

4. Q: Yuav ua li cas vuam ceev faj rau SUS316Ti? A: Siv ER316Ti muab tub lim hlau los tswj cov ntsiab lus Ti. Tsis txhob ER316 (tsis muaj Ti) lossis ER316L (qis Ti), vim lawv txo qis siab -temp corrosion kuj. Weld nrog TIG/MIG, tswj cov cua sov input (100{10}}140A) los tiv thaiv Ti burnout. Tsis xav tau kev kho cua sov tom qab vuam, ua kom yooj yim fabrication. Ntxuav weld aav kom tshem tawm cov nplais oxide, uas muaj Ti thiab txo cov corrosion kuj.

5. Q: Dab tsi yog qhov ua haujlwm siab tshaj plaws ntawm SUS316Ti? A: Nws ua haujlwm tsis tu ncua mus txog 900 ° C, siab dua SUS316 (870 ° C) thiab SUS316L (870 ° C). Ntawm 900 ° C, nws TiC tseem nyob ruaj khov, thiab oxide txheej tiv thaiv oxidation. Kev siv luv luv{10}} tuaj yeem ncav cuag 950 ° C. Tshaj 950 ° C, TiC yaj, thiab lub zog poob. Rau qhov kub tshaj 900 ° C, xaiv SUS310S. SUS316Ti yog tus nqi{19}}zoo rau 400-900 ° C qhov kub thiab txias, ib puag ncig corrosive.