250-524 Aarh (Nws yog hu ua Tshuag tiav)

Lwm cov kev siv rau 2205 flanges suav nrog kev siv hauv cov tub rog thiab lwm cov tshuaj chlet thiab cov khoom siv biofuel, cov khoom siv tshuaj dawb, thiab cov khoom siv ua khoom noj. Kev lag luam loj siv cov txiv neej no 2205 flanges muaj xws li asphalt txhim kho cov nroj tsuag, feem ntau ntawm cov roj av (thiab petrochemicals thiab cov kua qaub.

Cov flanges yuav tsum tsis txhob siv nyob rau ntawm qhov kub tshaj 600¡Ãf [315¡ÃC] txij li nws yuav raug rau kev muab kev pabcuam tom qab muaj kev kub ntxhov.

Piv rau lwm cov hlau, peb lub Duplex Stainless Hlau Flanges muaj ntau cov chromium thiab yog li ntawd muaj zoo corrosion tsis kam. Duplex steel tiab hauv qab ntawm flanges muaj txog 10% chromium. Duplex Steel dig muag flanges (blrf) yog qhov ruaj khov khov thiab muaj lub zog muaj nruab nrab txawm tias muaj lub siab kub.
Ntev Weld Flanges Pab nrog siab siab thiab qhov xav tau ntawm lub sijhawm ntev, tapered hub yog feem ntau siv rau weld caj dab flanges. Thaum xaj khoom, nws yog qhov tseem ceeb tshaj plaws los qhia cov raj xa dej uas yuav siv. Qhov flange no zoo tagnrho rau kev siv nyob rau hauv ib cheeb tsam uas muaj kev cuam tshuam ntau heev hloov kho cov kev hloov pauv thiab kov ntau dhau thiab dabtsi yog khoov.
Kev sib xyaw ntawm chromium, molybdenum thiab nitrogen muab 2205 zoo tsis kam rau chloride pitting thiab crevice corrosion. Qhov kev tiv thaiv no yog qhov tseem ceeb tshaj plaws rau cov kev pab, cov dej brackish, cov dej num ua kom dawb, kaw cov ntaub ntawv ua zaub mov noj thiab qee qhov kev siv zaub mov noj. Lub siab chromium, molybdenum thiab nitrogen cov ntsiab lus ntawm 2205 muab kev cuam tshuam zoo dua li 317L thiab 317l thiab cov neeg pej xeem tau koom nrog ua kom zoo tshaj plaws rau peb cov neeg siv khoom.

Txawm hais tias nws yog ib qho tseem ceeb kom nco ntsoov tias pitting corrosion tuaj yeem muaj kev txhawj xeeb hauv cov tshuaj chloride thaum oxidizing xov xwm tam sim no. Nyob rau hauv cov mob no, lub passive (tiv thaiv) txheej ntawm lub duplex 2205 cov khoom siv tuaj yeem cuam tshuam hauv pittingcompized yuav tshwm sim.

Chromium yog ib tug ferrite yav dhau los, uas txhais tau tias nws txhawb nqa cov qauv BCC qauv ntawm cov hlau. Nws kuj tseem nce oxidation tiv thaiv nyob rau ntawm qhov kub. Siab chromium kuj txhawb kev tsim ntawm intermetallic theem, uas yog detrimental rau Duplex stainless hlau thiab yuav tsum tau hais.

Peb yog cov chaw tsim khoom ASTM A182 Duplex uns s32750 \ / s32760 flanges ua rau cov dej hauv qab ntsev, thiab cov dej num ua zaub mov noj, thiab cov khoom noj ua khoom noj.

Cov khoom siv S32205 DuPlex Asme asme sa182 pob tw Weld Flanges yog tsim nyog rau dej hiav txwv thiab cov khoom siv hluav taws xob tuaj yeem tiv thaiv kom sov txog 600,000Ãf, thaum tseem muaj cov yam ntxwv zoo.

Nws yog xav tau thaum lub caj dab xav tau ntev. DupleX steel flanges ua raws li txuas ntxiv. Duplex steel flanges tau siv hauv kev lag luam thiab kev lag luam roj av rau cov chaw nyob thiab ua lag luam. DupleX steel flanges ua tau zoo hauv paus qib siab thiab cov kev ntsuas kub hloov tshiab. Ntev ntev weld flanges muaj nyob rau hauv ntau qhov ntev, ntau thiab tsawg thiab qhov ntev thiab xav tau kev xav tau.

Lub hauv paus lub cev ntawm lub din 1.4462 flange muaj ob qho qauv ferritic thiab Austenitic. Lub duality ntawm lawv microstructure pauv tsis tsuas yog cov cuab yeej kho tshuab tab sis kuj yog lawv cov khoom lag luam dorrosion. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm uns s31803 weld flanges muaj 22% chromium, 3% molybdenum, thiab 5% rau 6% npib tsib xee.

Rau ntau cov ntawv thov uas 300 series stainless hlau yog qhov raug rau cov chloride kev ntxhov siab tawg, 2205 duplex stainless hlau yog qhov kev daws teeb meem zoo. Kev ntxhov siab corrosion tawg tshwm sim thaum stainless hlau yog raug rau tensile muaj kev ntxhov siab thaum sib cuag nrog cov kev daws teeb meem uas muaj chlorides. Kev kub siab dua kub kuj nce ntxiv qhov kev ua kom muaj kev phom sij ntawm cov hlau tsis muaj mob corrosion.

Rau ob lub stainless hlau flanges, tov annealing ntawm qhov ntsuas kub kom tsim nyog tuaj yeem ua tiav cov kev sib npaug zoo tshaj plaws ntawm theem. Nws yog ib qho tseem ceeb kom lub sijhawm nruab nrab ntawm kev tawm hauv lub cub tawg thiab dej quenching li luv tau. Qhov no yog kom txo qhov kub cua sov los ntawm flange, uas tuaj yeem ua rau muaj nag kev ua ntej dej tso tseg ua ntej tso dej sov.

Flange lub ntsej muag ua tiav Tshuag tiav \ / Kauv Serrated \ / celledric serated \ / saib xyuas du (ra 3.2 microstreters)

Super Duplex uns S32760 txo cov flanges muaj ntau lub micrubtructure, muaj ntau ntawm nitrogen, tso cai rau fabrication ntawm nyias thiab qis-hnyav flanges uas yooj yim ntawm lub hnab tshos.

Ob chav pob tw weld flanges yog qhov zoo tshaj plaws rau cov ntawv thov kev muaj kev phom sij. Taub qab Weld Flanges tau yooj yim pom los ntawm lawv lub caj dab ntev.

ASME B16.5 WN \ / LWN \ / Yog li \ /

Nyob rau ntawm qhov kub no, ob tus hlau steel flanges tshaj 300 degrees Celsius tseem muaj kev tiv thaiv los ntawm kev sawv los ntawm kev xeb vim tias corrosion. Ciav muaj peev xwm kuj tau zoo heev thaum kub tsawg. Fabrication yog ua tiav tsuas yog nrog cov cuab yeej muab rau cov khoom siv hlau stainless. Yuav tsum tau huv kom zoo ua ntej siv. Qhov no yog ua los tiv thaiv cov hlau stainless los ntawm kev sib kis ntawm corroding hlau.

Cov tshuaj lom neeg cov tshuaj lom neeg ntawm cov roj duplex f51 muaj cov pa roj carbon, chromium, mancese, molybdenum, npib tsib xee thiab phosphorus. Flanges tau siv rau hauv siab nruab nrab thiab cov fittings valve.

ASME B16.47 Series A wn \ / Qhov Muag Flange 150 # -900 # 22 "-48" (Tsuas yog 900 # Loj: 26 "-48")

Qee qhov dual-theem weld flanges muaj cov oxidation zoo tsis kam ntawm qhov kub tshaj 300 qib qis dua 300 degrees raug rau 475 degrees Celsius. Cov theem qib ob steel s32205 ntiv nplhaib sib koom ua ke kuj tseem muaj kev ua kom muaj zog thiab kev qaug zog zoo li cov khoom lag luam thermal thiab ntau dua thermal conductivity tshaj li tau lees paub.

Duplex stainless tus khub qib yog lub npe denplex vim tias cov qib ob flange sib npaug muaj ob-theem microstructure. Qhov no ob-theem microstructure muaj cov ferritic thiab ustenitic stainless hlau-zoo li nplej. Raws li lub npe qhia, lub duplex kev tsim kho muab cov duplex stainless ntsaws qhov hluav taws xob muaj ntau yam khoom txaus nyiam.

ASTM A182 F51 flanges xa mus rau cov yeeb nkab flanges ua los ntawm forged duplex stainless hlau unsolutless steel stainless hlau uncenolle stainless hlau uncenolle stainless hlau Unceness Systems.

ASTM A182 uns s31803 ob chav flanges yog cov siv tau heev thiab yuav haum rau qhov loj me vim muaj ntau yam. Lawv tau ua los ntawm cov khoom siv raw zoo tshaj plaws thiab tseem tau ntim hauv cov ntoo ntoo kom tsis pom kev puas tsuaj. Lawv yuav tsum feem ntau tsis muab welded tsis muaj cov tub lim hlau raws li qhov no tuaj yeem ua rau ntau dua ferrite.

DupleX Steel Flanges tau siv dav hauv kev siv tshuab siv, kev lag luam tshuab thiab tsheb lag luam hauv tsheb. Duplex steel s31803 lap flanges yog qhov zoo tagnrho rau cov ntawv thov ua kom zoo dua li hom 316 thiab lub zog kub zoo. Peb muaj lub duplex steel s31803 \ / s32205 flanges hauv Tshuag. Duplex steel flanges yog ib txwm siv hauv tshuaj, petrochemical, thiab kev lag luam fais fab.

EN1092-1: 2002 Phaj flange rau vuam \ / xoob phaj fled weld-ntawm phaj dab tshos \ / dig muag flange \ / Worn Flange Pn2.5-PD Flange Pn2.5-Pn100 Dn4000

Qhov no alloy tiv taus chloride ib puag ncig thiab sulfide kev nyuaj siab corrosion. Nws tseem yog kwv yees ob npaug lub zog ntawm cov qauv ntawm cov hlau tsis huv.

Duplex 2205 yog nitrogen txhim kho cov yas stainless hlau tsim los daws cov teeb meem corrosion nrog 300 series cov hlau stainless. "Duplex" piav qhia txog tsev neeg ntawm stainless cov hlau uas tsis yog Austenitic (xws li 304 stainless hlau) tsis yog 430 stainless hlau). Tus qauv ntawm 2205 duplex stainless hlau muaj cov pas dej ntawm Austenite ib puag ncig los ntawm kev txuas ntxiv ferrite theem. Nyob rau hauv anealed mob, 2205 muaj kwv yees li 40-50% ferrite. 2205 feem ntau raug xa mus ua cov qib haujlwm ua haujlwm thiab yog cov dav dav siv dav dav hauv tsev neeg lub cev tsis muaj roj stuple.

Piv rau lwm cov hlau, peb lub Duplex Stainless Hlau Flanges muaj ntau cov chromium thiab yog li ntawd muaj zoo corrosion tsis kam. Duplex steel tiab hauv qab ntawm flanges muaj txog 10% chromium. Duplex Steel dig muag flanges (blrf) yog qhov ruaj khov khov thiab muaj lub zog muaj nruab nrab txawm tias muaj lub siab kub.
Ntev Weld Flanges Pab nrog siab siab thiab qhov xav tau ntawm lub sijhawm ntev, tapered hub yog feem ntau siv rau weld caj dab flanges. Thaum xaj khoom, nws yog qhov tseem ceeb tshaj plaws los qhia cov raj xa dej uas yuav siv. Qhov flange no zoo tagnrho rau kev siv nyob rau hauv ib cheeb tsam uas muaj kev cuam tshuam ntau heev hloov kho cov kev hloov pauv thiab kov ntau dhau thiab dabtsi yog khoov.
Kev sib xyaw ntawm chromium, molybdenum thiab nitrogen muab 2205 zoo tsis kam rau chloride pitting thiab crevice corrosion. Qhov kev tiv thaiv no yog qhov tseem ceeb tshaj plaws rau cov kev pab, cov dej brackish, cov dej num ua kom dawb, kaw cov ntaub ntawv ua zaub mov noj thiab qee qhov kev siv zaub mov noj. Lub siab chromium, molybdenum thiab nitrogen cov ntsiab lus ntawm 2205 muab kev cuam tshuam zoo dua li 317L thiab 317l thiab cov neeg pej xeem tau koom nrog ua kom zoo tshaj plaws rau peb cov neeg siv khoom.

Lub ASTM A182 F53 vs F55 tuaj yeem sib txawv sib txawv xws li? nti rau 48 ntiv nrog cov chav kawm sib txawv raws li chav kawm 150 los ntawm chav kawm 2500.

2205 chav hlau chav roj muaj ob-theem microstructure ntawm ferrite thiab austenite. Thaum nws los txog rau cov tshuaj lom neeg muaj pes tsawg leeg ntawm 2205 duplex steel flanges, lawv feem ntau muaj 22% chromium, 3% molybdenum thiab 5-6% nyob rau hauv daim ntawv ntawm alloyed stainless hlau.

Duplex 2205 thiab super duplex 2507 stainless hlau taub qab weltealed tawm lub zog ntawm cov hlau tsis muaj txiaj ntsig xws li 304 thiab 316 Stainless Hlau Weld Flanges. Vim tias qhov no, Duplex 2205 thiab super ruplex 2507 steel qeb siv rau pob tw weld flange yog qib ntau dua ntawm ob.

Txhua 2205 alloys tau kuaj xyuas kom ntseeg tau tias cov khoom xa khoom yog pub dawb ntawm cov theem teeb meem xws li Sigma. Nws feem ntau yog siv nyob rau hauv daim ntawv ntawm welded kav dej lossis tubular seem. Cov alloy tseem siv tau ua tsim thiab Welded daim ntawv tso rau hauv ib cheeb tsam uas tiv taus dav corrosion thiab chloride kev ntxhov siab corrosion.

Piv rau cov qib zoo sib xws thiab cov qib qis, tus nqi Super Roge thiab, vim lub zog zoo dua thiab, muaj corrosion tsis kam.