Qhov txawv ntawm SS 329 thiab SS316 yog dab tsi?

Kev Sib Piv Txog Cov Lus Qhia Ntxiv Los Ntawm SAKYSTEEL

Cov hlau tsis xeb yog qhov tseem ceeb hauv kev lag luam niaj hnub no, txij li cov chaw tsim tshuaj lom neeg thiab kev tsim nkoj mus rau cov roj thiab cov roj av. Ntawm ntau qib muaj,SS 316thiabSS 329yog ob yam khoom siv uas feem ntau ua rau muaj kev tsis meej pem ntawm cov neeg yuav khoom thiab cov engineers. Ob qho tib si paub txog lawv qhov zoo heevkev tiv thaiv xeb, txawm li cas los xij lawv txawv heev hauvmicrostructure, mechanical zog, thiab kev ua tau zoo.

Tsab xov xwm no, npaj los ntawmSAKYSTEEL, ib lub tuam txhab muag khoom siv hlau stainless thoob ntiaj teb, piav qhia txog qhovQhov sib txawv ntawm SS 329 thiab SS316, npog lawv cov tshuaj lom neeg sib xyaw, kev tiv thaiv corrosion, lub zog, thiab cov ntawv thov tsim nyog. Kev nkag siab txog cov kev sib txawv no pab cov engineers thiab cov kws tshaj lij kev yuav khoom xaiv cov khoom siv zoo rau cov chaw ua haujlwm tshwj xeeb.

1. Txheej txheem cej luam ntawm SS316 Stainless Steel

SS316, kuj hu uaAISI 316 or UNS S31600, yog ib qhoaustenitic stainless hlauNws yog ib feem ntawm tsev neeg 300-series thiab siv dav vim nwskev tiv thaiv corrosion zoo heev, zoo formability, thiabyooj yim ntawm kev vuam.

Lub ntsiab lus tseem ceeb ntawm SS316 yogmolybdenum (2–3%), uas txhim kho kev tiv thaiv raukev xeb ntawm qhov pitting thiab crevice, tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj chloride xws li dej hiav txwv. SS316 feem ntau hu ua "marine qib stainless hlau, ”txawm hais tias nws txoj kev tiv taus dej ntsev yog qhov nruab nrab piv rau cov qib duplex.

Nws tsis yog hlau nplaum nyob rau hauv lub annealed mob thiab khaws cia toughness txawm tias nyob rau hauv cryogenic kub, ua rau nws yog ib tug ntau yam thiab txhim khu kev qha cov khoom siv rau tshuaj lom neeg, khoom noj, thiab marine industries.

2. Txheej txheem cej luam ntawm SS329 Stainless Steel

SS329, los yogUNS S32900, yog ib qhoob chav stainless hlau, txhais tau tias nws muaj cov khoom sib xyaw ua ke ntawmaustenite (γ)thiabferrite (α)theem. Cov qauv dual-theem no muab SS329 ib qho kev sib xyaw ua ke ntawmmuaj zog heevthiabkev tiv thaiv corrosion zoo heev, tshwj xeeb tshaj yog tawm tsamKev tawg ntawm chloride kev ntxhov siab corrosion (SCC).

Nrog cov chromium siab dua (≈25%) thiab cov nickel qis dua (≈4%) ​​piv rau SS316, SS329 tuaj yeem ua haujlwm hauv cov chaw uas cov hlau tsis xeb austenitic zoo li 316L yuav ua tsis tiav.

Nws feem ntau siv rau hauvcov platforms tawm ntawm ntug dej hiav txwv, cov nroj tsuag desalination, cov khoom sib pauv cua sov, thiab cov kav dej siab, qhov twg ob qho tib si lub zog kho tshuab thiab kev ua haujlwm corrosion yog qhov tseem ceeb.

3. Kev Sib Txawv ntawm Cov Tshuaj Lom Zem

Qhov sib npaug ntawm cov tshuaj lom neeg txhais tau tias txhua tus hlau ua haujlwm li cas. Hauv qab no yog kev faib tawm yooj yim (tsis muaj lub rooj, raws li tau thov):

  • SS316 Cov Khoom Siv:16–18% Chromium, 10–14% Nickel, 2–3% Molybdenum, nrog rau me me ntawm Manganese, Silicon, thiab Carbon (<0.08%).

  • SS329 Cov Khoom Siv:23–28% Chromium, 2.5–5% Nickel, txog li 1.5% Molybdenum, thiab me ntsis Nitrogen los tswj cov qauv duplex.

Cov Ntsiab Lus Tseem Ceeb:

  • SS329 muajchromium ntau duathiabtsawg dua nickel, muab nws txoj kev tiv thaiv xeb muaj zog dua thiab muaj zog dua.

  • SS316, nrog nws cov nickel thiab molybdenum siab dua, yog ntau duaductile thiab formable, tsim nyog rau cov duab zoo nkauj thiab cov tiav tiav.

4. Kev Sib Piv ntawm Cov Qauv Me Me

Qhov sib txawv tseem ceeb ntawmSS329 thiab SS316nyob hauv lawvqauv me me:

  • SS316yog tag nrhoaustenitic, txhais tau tias nws cov qauv siv lead ua yog lub ntsej muag-centered cubic (FCC). Qhov no ua rau nws muaj zog zoo heev, cov khoom tsis yog hlau nplaum, thiab weldability zoo.

  • SS329 is ob chav, muaj li ntawm 50% ferrite thiab 50% austenite. Cov qauv ferritic (lub cev-centered cubic) ntxivlub zog thiab chloride cracking tsis kam, thaum lub austenitic ib feem khaws ciakev yoog tau.

Vim li no, SS329 yuav luagmuaj zog ob npaugzoo li SS316 tab sis tsis yooj yim rau kev tsim thiab tshuab.

5. Cov Khoom Siv Kho Tshuab

Cov kev sib txawv ntawm cov khoom siv kho tshuab yog qhov tseem ceeb:

  • Lub Zog Tawm:SS316 ≈ 205 MPa, SS329 ≈ 450 MPa

  • Lub zog tensile:SS316 ≈ 515 MPa, SS329 ≈ 620 MPa

  • Kev ntev:SS316 ≈ 40%, SS329 ≈ 25%

Qhov no txhais tau tiasSS329muab kev thauj khoom ntau dua thiab kev tiv taus qaug zog, ua rau nws zoo tagnrho raucov hlab ntsha siab thiab cov khoom hauv hiav txwv. SS316, ntawm qhov tod tes, muaj kev ywj pheej ntau dua, qhov chaw zoo dua, thiab ua haujlwm txias yooj yim dua rau kev kho kom zoo nkauj lossis kev siv tsis muaj kev ntxhov siab.

6. Kev Sib Piv Txog Kev Tiv Thaiv Kev Xeb

Ob qib yog corrosion-resistant, tab sis nyob rau hauvib puag ncig sib txawv:

a) Kev Ua Xeb Los Ntawm Chloride

  • SS316 tuaj yeem tawg thaum raug tshuaj chloride ntev ntawm qhov kub siab.

  • SS329 tiv taus chloride kev ntxhov siab corrosion cracking, ua rau nws haum raukev siv dej hiav txwv thiab brine.

b) Kev xeb ntawm qhov chaw tawg thiab qhov tawg

  • SS316's molybdenum txhim kho kev tiv thaiv rau pitting, tab sis tsuas yog mus txog qib chloride nruab nrab (≈300 ppm).

  • SS329 ua tau zoo dua txawm tias nyob rau hauv cov chloride concentration ntau dua vim nws cov chromium thiab duplex theem siab dua.

c) Kev Tiv Thaiv Acid

  • SS316 zoo rau cov kua qaub xws li acetic, phosphoric, thiab sulfuric (dilute).

  • SS329 kov cov kua qaub oxidizing thiab alkalis zoo dua, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej sib xyaw chloride-acid.

d) Kev Sib Tsoo Hauv Cov Pob Zeb

  • Ob leeg puav leej tiv taus thaum kho cua sov kom zoo. Txawm li cas los xij, SS329 yuav tsum tau ua tib zoo ua kom tsis txhob muaj teeb meem.kev tsim theem sigmauas tuaj yeem txo qhov tawv.

Hauv luv luv:
Raukev siv dej hiav txwv lossis tshuaj lom neeg, SS316 ua haujlwm tau zoo hauv cov tshuaj chloride nruab nrab, thaumSS329 yog qhov kev xaiv zoo tshaj plawsrauoffshore los yog desalinationib puag ncig.

7. Kev Vuam thiab Kev Tsim Khoom

Vuam SS316 yog qhov yooj yim nrog txhua cov txheej txheem ib txwm muaj (TIG, MIG, SMAW), thiab kev kho cua sov tom qab vuam tsis tshua xav tau.

SS329, ua duplex, yuav tsum muajkev tswj cua sov kom meej duathaum lub sijhawm vuam kom tswj tau nws cov theem sib npaug. Kev nkag mus rau hauv cua sov ntau dhau tuaj yeem ua rau cov theem tawg uas txo qis kev tiv thaiv xeb. Kev siv cov hlau sib phim thiab cov pa roj tiv thaiv kom zoo yog qhov tseem ceeb.

Thaum nws los txog raukev tsim thiab kev ua haujlwm:

  • SS316 yooj yim dua rau khoov, dov, thiab txhuam.

  • SS329 lub zog siab ua rau nws nyuaj rau tsim tab sis haum rau cov qauv ruaj khov.

8. Kev Tiv Thaiv Kub

SS316 khaws nws lub zog thiab kev tiv thaiv corrosion txog li870°C (1600°F)nyob rau hauv kev pabcuam tas mus li.

SS329, thaum muaj zog ntawm chav tsev kub, tej zaum yuav tsim cov theem brittle yog tias raug rau qhov kub siab ntev (saum toj no 300 ° C). Txawm li cas los xij, nws ua tau zoo heev hauvkub nruab nrabib puag ncig nyob rau hauv kev ntxhov siab mechanical thiab chloride raug.

Yog li ntawd, SS316 yog qhov zoo dua raukev pabcuam kub siab, thaum SS329 yog qhov zoo tagnrho raukev ntxhov siab siab, qhov kub nruab nrab, qhov chaw corrosive.

9. Tus nqi thiab muaj

Feem ntau,SS329 kim duadua li SS316 vim nws cov txheej txheem tsim khoom nyuaj thiab tswj cov kev cai kho cua sov. Txawm li cas los xij, nws muablub neej ua haujlwm ntev dua thiab cov nqi kho qis duanyob rau hauv cov chaw muaj kev kub ntxhov, ua rau nws tsim nyog tus nqi dhau sijhawm.

SS316 muaj dav dav thiab tsim tawm thoob ntiaj teb, ua rau nws yog ib qhokev xaiv tus qauv thiab kev lag luamrau kev siv dav dav.

Yog tias koj qhov project muaj feem cuam tshuam nrogcov kav dej hiav txwv, cov thoob tshuaj lom neeg, lossis cov chaw tsim roj, kev nqis peev rau hauv SS329 yuav txuag tau cov nqi kho yav tom ntej. Raucov khoom siv hauv chav ua noj, cov vaj huam sib luag vaj tse, lossis kev siv hauv dej hiav txwv me me, SS316 tseem yog ib qho kev xaiv uas siv tau thiab pheej yig.

10. Cov ntawv thov ntawm SS316

SS316 pom muaj nyob rau hauv yuav luag txhua qhov kev lag luam ua tsaug rau nws qhov sib npaug ntawm kev tiv thaiv corrosion, ua haujlwm tau zoo, thiab kev zoo nkauj. Cov ntawv thov feem ntau suav nrog:

  • Cov khoom siv thiab cov khoom siv marine

  • Cov khoom siv khoom noj thiab dej haus

  • Cov kab ua haujlwm tshuaj lom neeg thiab tshuaj

  • Cov khoom hloov pauv cua sov thiab cov evaporators

  • Cov architectural facades thiab railings

  • Cov cuab yeej kho mob thiab cov cuab yeej phais

Nws qhov tiav ci ntsa iab thiab kev ua kom zoo nkauj ua rau nws nrov tshwj xeeb hauv kev lag luam uas xav tau ob qho tib sikev ua haujlwm thiab tsos.

11. Cov ntawv thov ntawm SS329

Vim nws lub zog thiab kev tiv thaiv corrosion hauv cov xwm txheej hnyav,SS329nyiam dua hauv:

  • Cov kav dej roj thiab roj av hauv hiav txwv

  • Cov chaw tsim dej ntsev thiab cov tshuab dej hiav txwv

  • Cov khoom zom zaub mov ntawm cov pulp thiab ntawv

  • Cov txheej txheem tshuaj lom neeg

  • Cov khoom siv hloov cua sov uas raug rau cov tshuaj chloride

  • Cov khoom siv hauv cov platform marine

Nws cov qauv duplex ua kom ntseeg tau tiaslub zog kho tshuab siabtxawm tias nyob rau hauv cov loads dynamic thiab kev hloov pauv siab.

12. Kev Txheeb Xyuas Kev Ua Tau Zoo

SS316:

  • Hom: Austenitic

  • Lub zog: Nruab nrab

  • Kev Tiv Thaiv Kev Xeb: Zoo heev (chlorides nruab nrab)

  • Kev Ua Tau: Zoo heev

  • Vuam: Yooj yim

  • Kev Siv Ib Txwm Muaj: Khoom Noj, Tshuaj, Kev Tsim Kho Vaj Tse, Kev Ua Dej Hiav Txwv Me Me

SS329:

  • Hom: Ob Chav

  • Lub zog: siab heev

  • Kev Tiv Thaiv Kev Xeb: Zoo heev (chlorides siab, dej hiav txwv)

  • Kev Tsim: Nruab Nrab

  • Vuam: Yuav tsum tau tswj hwm

  • Kev Siv Feem Ntau: Roj & roj av, offshore, desalination, industrial

Hauv kev xaus, qhov sib txawv tseem ceeb ntawm SS316 thiab SS329 yogqhov sib npaug ntawm lub zog thiab kev tiv thaiv corrosionSS329 muaj kev tiv thaiv kev kho tshuab thiab chloride ntau dua, thaum SS316 muab kev ua kom zoo dua thiab kev ruaj khov thermal.

13. Xaiv Ntawm SS329 thiab SS316

Kev xaiv cov hlau tsis xeb zoo nyob ntawm seb muaj kev ua haujlwm li cas:

  • Yog tias lub zog thiab kev tiv taus chloride yog qhov tseem ceeb, xaivSS329.

  • Yog tias qhov yooj yim ntawm kev tsim khoom thiab qhov tiav ntawm qhov chaw tseem ceeb dua, xaivSS316.

  • Raucov chaw tsim tshuaj lom neeg, cov txheej txheem desalination, lossis kev raug dej hiav txwv, SS329 zoo dua.

  • Raucov khoom siv hauv chav ua noj, cov khoom siv hauv tsev, lossis cov txheej txheem tshuaj uas muaj cov tshuaj chloride tsawg, SS316 txaus.

Kev ua haujlwm nrog tus neeg muag khoom paub txog yuav pab kom ntseeg tau tias kev xaiv cov khoom siv raug, cov txheej txheem vuam raug, thiab qhov zoo sib xws.

14. Vim li cas ho xaiv SAKYSTEEL rau Duplex thiab Austenitic Stainless Steels

Ua ib lub chaw tsim khoom thiab xa khoom ntawm cov hlau tsis xeb uas muaj kev paub dhau los,SAKYSTEELmuab ob qho tib siSS316thiabSS329nyob rau hauv cov ntaub ntawv xws li cov kab puag ncig, cov phaj, cov ntawv, thiab cov raj.

Peb muab:

  • Cov ntaub ntawv pov thawj (EN 10204 3.1 / 3.2)

  • NACE MR0175 thiab ISO 15156 kev ua raws li kev pabcuam roj thiab roj av

  • Kev ua haujlwm kom raug thiab qhov ntev raws li qhov xav tau

  • Kev xa khoom sai thoob ntiaj teb thiab kev txhawb nqa kev txawj ntse

Peb cov khoom siv dav dav hauv kev lag luam marine, petrochemical, thiab kev tsim kho thoob plaws Tebchaws Europe, Middle East, thiab Southeast Asia.

Rau txhua qhov project,SAKYSTEELua kom muaj kev tshuaj xyuas zoo, kev taug qab txhim khu kev qha, thiab kev ntim khoom xa tawm kev tshaj lij.

15. Cov Kev Xav Kawg

Qhov txawv ntawmSS329 thiab SS316txuas ntxiv mus deb tshaj qhov chemistry - nws txhais lawvkev ua tau zoo, kev ruaj khov, thiab thaj chaw sivSS316 tseem yog lub hauv paus tseem ceeb hauv kev lag luam rau cov khoom siv tiv taus corrosion, yooj yim tsim, thaum SS329 sawv cev rau qib tom ntej ntawm lub zog thiab kev ntseeg siab hauv cov chaw ib puag ncig hnyav.

Kev nkag siab txog cov qhov sib txawv no tso cai rau cov engineers thiab cov neeg yuav khoom xaiv cov alloy zoo rau txoj haujlwm zoo - txo kev txij nkawm, ua kom lub neej ntev dua, thiab ua kom muaj kev nyab xeeb nyob rau hauv cov xwm txheej nyuaj.

Thaum nrhiav cov khoom siv hlau tsis xeb, xaiv cov neeg muab khoom uas muaj kev txawj ntse thiab kev lees paub zoo. Koom tes nrogSAKYSTEELrau cov hlau tsis xeb uas ruaj khov, ua tau zoo uas ua tau raws li cov qauv thoob ntiaj teb thiab tshaj qhov koj xav tau.

Lub sijhawm tshaj tawm: Lub Kaum Hli-22-2025