Vim li cas 316l unnction s31603 stainless hlau yeeb nkab muaj cov corrosion zoo heev thiab muaj zog
Feb 13, 2025
ASTM A312L 1.440L 1.4404 Cov yeeb nkab hlau tsis xeb, 316L
ASTM A312L TP316L 1.4404 Stainless Hlau YeebPuas yog cov pa roj cariation tsawg ntawm 316 stainless hlau, muab cov kev tiv thaiv corrosion, tshwj xeeb hauv chloride ib puag ncig. Nws yog dav siv nyob rau hauv kev lag luam xws li kev ua yeeb yam, cov ntawv thov marrine, kws tshuaj, thiab ua khoom noj.
ASTM A312 TP316L Yeeb Yam Tseem Ceeb:
Khoom siv:316L stainless hlau (cov pa roj tsis tau)
Txheem:ASTM A312
Corrosion Kuj:Kev tiv thaiv zoo heev rau pitting thiab corrice corrosion hauv chloride ib puag ncig.
Lub zog & durability:Lub zog siab thiab zoo weldability.
Kub Kuj:Haum rau kev siv kub-kub.
Qhov ntau thiab tsawg:
Sab nraud inch:1/8 "NB rau 48" NB (Seamless & Welded)
Phab Ntsa Thickness:SCH 5s, SCH 10S, SCH 40s, SCH 80s, SCH 160, XXS
Ntev:Random, txiav ntev, lossis kev cai
Cov Kev Siv Cov Ntaub Ntawv Feem Ntau:
Cov Hluav Taws Xob Tshav Kub Kub
Tshuaj Nroj Tsuag
Kws Tshuaj thiab Kev Lag Luam Khoom Noj
Tubrog Nkoj thiab Kev Lag Luam Offshore
Kev ntsuas kub siab thiab qhov siab siab
Vim li cas 316l stainless hlau muaj cov corrosion zoo heev thiab muaj zog?
Kev nkag siab pitting thiab crevice corrosion
Pitting thiab crevice corrosion yog ob hom kev ua kom haum corrosion uas tuaj yeem ua rau cov tshuaj nplua nuj ua rau ib puag ncig zoo li dej hiav txwv lossis cov nroj tsuag.
Pitt corrosion tshwm sim thaum cov xim me me, sib sib zog nqus daim ntawv ntawm cov hlau nto vim yog qhov kev puas tsuaj ntawm cov oxide txheej. Hom corrosion no tuaj yeem ua rau cov qauv ua tsis tiav txawm hais tias cov hlau tag nrho yog tsawg.
Crevice corrosion tshwm sim nyob rau hauv nqaim qhov khoob, xws li ntawm pob qij txha, gaskets, lossis nyob rau hauv cov nyiaj tso tawm, qhov twg cov pa oxygen ua rau cov pa hluav taws xob ua rau muaj kev cuam tshuam cov hlau.
Ob hom kev txhim kho corrosion yog qhov txaus ntshai heev vim tias lawv nyuaj rau ntes thiab tuaj yeem ua rau kom muaj kev ua tsis taus sai, tso tsheb hlau luam, thiab lwm yam tseem ceeb.
Vim li cas 316L stainless hlau tiv tau pitting thiab crevice corrosion
316L SCH 5s Stainless Hlau Seamless Yeeb NkabMuaj npe rau nws cov superor corrosion tsis kam, tshwj xeeb hauv chloride ib puag ncig. Qhov no feem ntau vim nws cov tshuaj sib xyaw ua ke:
Cov ntsiab lus Chromium (16-18%) - Cov ntaub ntawv Chromium zuj zus thiab kho tus kheej oxide txheej rau saum npoo av, tiv thaiv tus hlau los ntawm oxidation thiab corrosion.
Molybdenum (2-3%) - Qhov no ua kom pom tseeb rau pitting thiab crevice corrosion los ntawm kev txhawb cov zaj duab xis thiab uaSS 316L YeebNtau resistant rau tawg hauv chloride ib puag ncig.
Npib tsib xee (10-14%) - npib tsib xee dua tag nrho cov txheej txheem passive, thiab nce ua kom tsis txhob muaj acid tawm tsam.
Cov ntsiab lus muaj roj carbon tsawg ("l" hauv 316L, tsawg dua lossis sib npaug ntawm 0. Pab neeg mob carbide
Kev sib xyaw ntawm cov ntsiab lus tso caiUNG UNS UNRNT S31603 SCH 10S YEEB NKABTxhawm rau tiv thaiv chloride sib kis, ua rau nws zoo tagnrho rau cov ntawv thov marine, tshuaj lom neeg, thiab offshore kev lag luam.
Vim li cas 316l stainless hlau muaj lub zog siab thiab zoo weldability
316L Stainless Hlau TubeCov khoom ua pov thawj zoo heev cov khoom siv kho tshuab, suav nrog cov zog siab thiab zoo dua weldility. Ntawm no yog vim li cas:
Austenitic microstructure - lub ntsej muag-nruab nrab lo lus sau (FCC)
Ua haujlwm cov peev xwm ua haujlwm hnyav - 316L tuaj yeem ntxiv los ntawm kev ua haujlwm txias, uas ua rau nws lub zog txias thiab lub zog tensile tsis muaj kev cuam tshuam corrosion.
Cov ntsiab lus muaj roj carbon qis - "L" l "txhais tau tias yog cov roj carbon tsawg dua, txo qhov kev pheej hmoo ntawm carbide nag lossis daus thaum ua daus. Qhov no txhim kho cov hlau tiv thaiv kom muaj kev txhim kho corrosion thiab ua kom pom zoo rau Weld zoo dua Weld.
Zoo Weldability - 316L tuaj yeem welded siv cov qauv txheej txheem (Mig, sib tw weld kev kho mob, ua cov ntaub pua chaw sov, ua kom zoo dua.
Vim li cas 316L stainless hlau yog haum rau kev siv kub siab
316L sch 40s round yeeb nkabUa tau zoo nyob rau hauv cov kub siab vim nws ruaj khov microstructure thiab oxidation tsis kam:
Cov oxidation siab tiv taus - cov ntsiab lus chromium cov ntsiab lus ib txheej oxide uas tiv thaiv kev ntsuas thiab tsis zoo thaum muaj kub.
Cais cov khoom lag luam - 316L tau tuav nws cov khoom siv mechanies txawm tias kub siab tshaj 800 Qib F (427 degree), ua rau nws muaj kev sib pauv cua sov, boilers, thiab cua sov.
Khaws lub zog ntawm kev nce siab kub - tsis zoo li cov hlau loj heev, 316L khaws lub zog zoo thiab muaj zog rau lub zog ntev-kub.
Tag
Sus316L Stainless Hlau Yeeb Nkab'S tshwj xeeb tiv thaiv kom pitting thiab crevice corrosion hauv chloride ib puag ncig yog vim nws cov chromium nplua nuj, molybdenum, moly cov ntsiab lus, uas tau yuam kev cov txheej tiv thaiv lub passive. Nws lub zog siab, Weldability zoo, thiab ua tau zoo heev nyob rau hauv cov kev xaiv kub zoo xws li cov tubrog voos zoo li cov tubrog nkoj, tshuaj lom neeg, thiab khoom noj khoom haus, thiab khoom noj khoom haus, thiab khoom lag luam khoom noj. Thaum corrosion tsis kam thiab tshuab kev ntseeg yog qhov tseem ceeb, 316L stainless hlau yog ib qho ntawm cov khoom siv uas zoo tshaj plaws.
Stainless hlau 316L raj Tshuaj Muaj Zog Txuj Ci
|
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
|
.035 |
2.00 |
.045 |
.030 |
1.00 |
16.0-18.0 |
10.0-14.0 |
2.0-3.0 |
Cov Khoom Siv Neeg Kho Tshuab Ntawm 316L Stainless Hlau Kav Thiab Leeg
|
Teem nqi |
Tensile str |
YAWM Str |
Elong |
Kev nyuaj |
|
|
Rockwell B (HR B) Max |
Brinell (HB) Max |
||||
|
316L |
485 |
170 |
40 |
95 |
217 |
