Hauv kev siv tshuaj rau hauv cov hlau hauv lub cev, qib 316H thiab 316L ob leeg muaj rau 316 series-}} paub rau lawv cov corrosion tsis kam. Qhov sib txawv tseem ceeb yog lawv cov ntsiab lus carbon, uas dictates lawv cov khoom siv me txhua yam, corrosion tsis kam, thiab cov ntawv thov.
Kab lus no muab cov ncauj lus piav qhia ntxaws ntawm 316h thiab 316L stainless hlau, tshuaj xyuas lawv cov khoom siv tshuaj, cov neeg kho tshuab, thiab cov kev siv raug.
316H VS 316L: Tshuaj lom neeg sib txawv
316L (UNRNT S31603)Yog qhov qis -} Carbon version ntawm tus qauv 316 stainless hlau cov ntsiab lus ntawm 0.03%. Nws suav cov qauv kev teeb tsa yog 022cr17NI12MO2. Cov ntsiab lus carbon minimized yog ib qho kev xaiv tsim qauv los txhim kho weldability thiab tsis kam mus rau qhov tsis paub.
316h (uns uns s31609)sawv cev lub siab - pa roj carbon ntau, nrog cov ntsiab lus carbon ntau dua ntawm 0.04% thiab 0.10%. Nws sib raug zoo rau Suav cov qauv kev tsim qauv 07cr17ni12mo2. Cov ntsiab lus carbon rau ntawm cov ntsiab lus carbon yog qhov tshwj xeeb engeyered los txhim kho siab - kub ua tau zoo.
Ob qib kawm muaj cov xwm txheej zoo li qub (16-18%), npib tsib) (10-14%), uas muab cov ntsiab lus corrosion tsis kam ntawm 316 series.
The molybdenum addition is particularly crucial for enhancing resistance to pitting and crevice corrosion in chloride-containing environments.
316H VS 316L:Cov Khoom Siv Neeg Kho TshuabQhov txawv
316L: Excelent Weldability thiab Corrosion Kuj
316L muaj cov weldability zoo heev, muab tau los ntawm nws cov ultra - cov ntsiab lus muaj roj carbon tsawg. Qhov tsawg ntawm cov roj carbon ntau txo qhov kev pheej hmoo ntawm chromium carbide nag lossis cov uas tuaj yeem ua rau muaj kev xav thiab qhov tsim nyog interranular corrosion.
Qhov no ua rau 316L tshwj xeeb tsim nyog rau cov khoom siv pov cov khoom uas xav tau vuam ntau, tshwj xeeb tshaj yog cov thicker mus ncig yog ntau tshaj.
Cov khoom siv mechanical ntawm 316L suav nrog kev nruj thiab ductility, txawm hais tias nws lub zog ntawm kev nce siab kub yog muab qis dua 316h. Nws tsis tuaj yeem siv zog los ntawm kev kho cua sov tab sis ua kom pom zoo ua haujlwm zoo ua rau cov yam ntxwv tawv.
Nws cov kev pabcuam kub feem ntau tsis tshaj li 450 tshaj li ntawm 450 degree, dhau qhov kev cuam tshuam uas tseem ceeb tshaj plaws uas yuav tshwm sim.
316h: superior high {{}}} kub ua tau
316H cov ntsiab lus carbon ntau dua muab kev txhim kho siab - lub zog, tshwj xeeb hauv cov ntsiab lus ntawm cov creep kam. Nws yog ib qho khoom tseem ceeb rau cov khoom siv ua haujlwm ntawm kev ntxhov siab thaum nce qhov kub.
Cov qib kawm no tau tsim tshwj xeeb rau cov ntawv thov ntawm qhov kub ntawm 500℃thiab 650℃yog qhov tseem ceeb.
Thaum 316H qhia tau zoo tag nrho tag nrho cov corrosion tsis kam nrog lwm lub 316 variants, nws weldability yog qhov tsis zoo rau chombium carbide tsim ntawm cov ciaj ciam av thaum vuam.
Muaj qee kis, tshaj tawm {- Weld Kev Kho Mob Cua sov yuav tsim nyog los rov ua kom zoo corrosion intertimate nyob rau hauv tshav kub- cuam tshuam zones.
316H VS 316L:Lub zog thiab cov neeg nkag
316H feem ntau nyob hauv ib puag ncig ntau tshaj 100 degree. Cov pa roj carbon ntau cov ntsiab lus los ntawm ncaj qha rau cov zog superiorg ua kom zoo dua thiab muaj zog}} kub kub tensile lub zog. Creep, cov khoom qeeb ntawm cov khoom hauv qab nruam kev hloov kho tshuab tas li, yog qhov ua kom muaj cov pa roj carbon atoms tsis pub dhau 316H Crystalline qauv.
Kev xaiv siab tshaj plaws
316H VS 316L:Chav tsev thiab qis {- lub zog kub
Ntawm chav tsev kub, 316H cov khoom pov thawj nce siab dua cov txiaj ntsig thiab lub zog tensile piv rau 316L, qhov kev daws teeb meem ncaj qha.
Piv txwv li, thaum 316L yuav muaj qhov tsis muaj zog tsawg kawg lub zog ntawm 205 MPa, 316T feem ntau qhia meej 240 mpa lossis siab dua.
Txawm hais tias 316L tseem khaws tau zoo heev ntawm cov kub kub, nws lub zog qis txwv nws siv nyob rau hauv cov neeg siv tshuab hluav taws xob yog tam sim no.
316H VS 316L:Corrosion Resistance sib piv
Lub corrosion tsis kam ntawm 316h thiab 316L sib txawv ntau, feem ntau vim lawv cov ntsiab lus carbon cov ntsiab lus:
Intergranular corrosion:
316L Kev ua yeeb yam zoo super tsis kam mus rau intergranular corrosion, tshwj xeeb yog tom qab kev ua haujlwm vuam. Nws cov peev txheej muaj roj carbon qis tsis tshua muaj kev tsim cov chromium carbides (yog kev tiv thaiv cov tub rog chromium (cog qoob loo.
316H, nrog nws cov ntsiab lus muaj roj carbon ntau dua, yog qhov cuam tshuam ntau dua rau qhov kev tshwm sim no, tshwj xeeb tshaj yog nyob rau hauv tshav kub - cuam tshuam aones ntawm welds.
Pitting thiab crevice corrosion:
Ob tus kawm qib pom zoo rau pitting thiab crevice corrosion, ntaus nqi rau lawv cov ntsiab lus Molybdenum (feem ntau 2-3%).
Qhov no ua rau lawv haum rau chloride -}} muaj cov chaw ib puag ncig, suav nrog cov ntawv thov marine. Cov kev ua tau zoo nyob rau hauv no suav yog piv tau piv ntawm ob qib, txawm tias 316L tuaj yeem ua rau muaj kev ruaj khov me ntsis hauv qee cov ntawv thov kub.
High - oli olidation:
316 O Outperforms 316L nyob rau hauv high- kub oxidation tiv taus thiab oxidation tsis kam rau lub ntsuas kub.
Thaum 316l yuav txwv tau saum toj 450 degree, 316h tswj nws cov txheej txheem thiab cov roj oxide uas muaj kev tiv thaiv ntau dua.
316H VS 316L:Cov Ntawv Thov thiab Kev Lag Luam Kev Lag Luam
Cov yam ntxwv sib txawv ntawm 316H thiab 316L hais txog lawv cov haum rau cov ntawv thov tshwj xeeb:
316L Cov Ntawv Thov Raug:
Siv khoom siv tshuaj lom neeg (tso tsheb hlau luam, piping, reactors).
Marine Cheebtsam thiab dej hiav txwv tuav lub tshuab.
Kws Tshuaj thiab Ua Khoom Siv Ua Khoom Noj Khoom Haus.
Cov cuab yeej kho mob thiab kev phais cov cuab yeej.
Welded fabriccations uas tshaj tawm - Weld Kev Kho Mob Cua Sov tsis yog ua tau.
316H cov ntawv thov raug:
High - kev hloov pauv kub thiab boiler Cheebtsam.
High - Kub Kub Piping Thiab Super Rhaub Tubes.
Siab cov hlab ntsha ua haujlwm ntawm kev nce siab kub.
Qhov chaw sov thiab siab - kub ua khoom.
Muaj cov ntawv thov yuav tsum tau ua ke ua ke lub zog kub thiab corrosion tsis kam.
316L vs 316h: Xaiv cov lus qhia
Xaiv nruab nrab ntawm 316H thiab 316l yuav tsum ua tib zoo saib xyuas cov kev pabcuam:
Xaiv 316L thaum:
Daim ntawv thov cuam tshuam nrog vuam dav dav, tshwj xeeb yog nrog cov ntawv tuab.
Kev pab kub nyob hauv qab 450 degree.
Qhov siab tshaj plaws los tiv thaiv kev txhim kho corrosion yog qhov yuav tsum tau ua.
Daim ntawv thov koom nrog chloride - kev nplua nuj lossis kev ua haujlwm ua haujlwm.
Xaiv 316H thaum:
Kev pabcuam kub ntau yam thaum 500℃thiab 650 degree.
High - kub lub zog thiab cov plaw ua rau yog qhov tseem ceeb.
Daim ntawv thov cuam tshuam nrog siab - kub siab muaj.
Kev ntsuas kub oxidation tiv thaiv yog qhov yuav tsum tau ua.
Nws yog ib qho tseem ceeb kom nco ntsoov tias ob qib no tsis tau hloov ncaj qha.
Tag
316H thiab 316L stainless hlau, thaum muaj pes tsawg leeg sib xws, puas muaj kev thov sib txawv.
316L, nrog nws cov ultra - Cov ntsiab lus muaj tshuaj tsw qab, ua rau nws muaj kuab lom, ua kom zoo rau cov khoom siv roj av, thiab cov kev pabcuam kub ntxhov yog qhov ntsuas kub.
Conversely, 316h, nrog nws cov ntsiab lus carbon ntau dua, muab kev tsim nyog rau cov kev siv kub, boilers, thiab siab} kev siv cov khoom kub.
Kev xaiv ntawm ob qib no yuav tsum yog los ntawm kev ntsuam xyuas kev ua kom tiav ntawm cov ntawv thov kev pabcuam tshwj xeeb, muaj ib puag ncig kev fabricalive, thiab kev ntxhov siab thiab txhua yam kev ntxhov siab.
