Duplex 2205 stainless hlau tau dhau los ua cov lus qhia ua haujlwm rau cov hlab ntsha siab ua cov tshuaj lom neeg, cov plhaub hloov pauv cua sov, thiab cov kav dej ua haujlwm uas tuav cov chaw muaj chloride ntau, sulfuric acid intermediates, thiab tsim dej los ntawm kev ua haujlwm roj thiab roj. Qib no muab cov theem austenitic thiab ferritic ntawm qhov sib npaug zos, xa kwv yees li ob npaug ntawm lub zog ntawm 304L / 316L austenitic qib thaum tswj kev tiv thaiv xeb pitting thiab crevice zoo dua li tus qauv austenitic stainless. Wow Stainless muab duplex 2205 phaj, ntawv, bar, thiab yeeb nkab welded rau cov tuam txhab tsim tshuaj lom neeg thoob plaws US Gulf Coast, Canadian roj-xuab zeb ua cov cheeb tsam, thiab Mexican petrochemical corridors. Cov ntawv thov ib txwm muaj xws li reactor pub piping, chloride-bearing process water systems, thiab cov khoom siv hauv FGD (flue gas desulfurization) absorbers uas ua haujlwm rau kev tsim hluav taws xob thee. Kev lees txais dual-phase metallurgy thiab ASME Code tau tsav kev saws txais thoob plaws kev tsim cov nroj tsuag ua tshuaj txij li xyoo 2018, thaum ASME B&PV Code Seem VIII hloov kho cov ntaub ntawv duplex uas tau pom zoo nrog cov txheej txheem tsim khoom kom ntxaws.
Vim li cas Duplex 2205 Hloov 316L hauv Chloride-Bearing Process Environments
Duplex 2205 muab kwv yees li ob npaug ntawm lub zog ntawm 316L austenitic stainless (450 MPa vs 220 MPa yam tsawg kawg nkaus), ua rau cov qauv tsim phab ntsa nyias dua uas txo qhov hnyav thiab tus nqi ntawm cov khoom siv. Lub microstructure dual-phase muab kev tiv thaiv xeb pitting thiab crevice zoo dua, nrog PREN (pitting resistance equivalent number) ntawm 35 piv rau 25 rau 316L. Rau cov chloride concentration siab dua 1,000 ppm thiab qhov kub ua haujlwm siab dua 60 ° C, duplex 2205 txhawb nqa kev pabcuam qhov twg 316L ntsib kev puas tsuaj pitting thiab kev ntxhov siab-corrosion-cracking hauv ob peb lub hlis.
Qhov zoo ntawm cov khoom siv kho tshuab ntawm duplex 2205 txhawb nqa kev txo qhov hnyav ntawm cov khoom siv hauv kev tsim lub nkoj siab, nrog rau cov txheej txheem nyias-phab ntsa txo cov hlab ntsha los ntawm 30-40% piv rau 316L sib npaug ntawm qhov ntsuas siab sib npaug. Rau cov tshuaj lom neeg loj-txoj kab uas hla reactors thiab cov tso tsheb cia khoom, qhov hnyav txo qis txhais tau ncaj qha rau kev txo cov khoom siv hauv paus, kev thauj mus los yooj yim, thiab cov nqi qis dua. ASME Code Seem VIII stamp txhawb nqa ua rau duplex 2205 tsim yam tsis muaj kev pom zoo tshwj xeeb rau kev tsim kho, ua kom yooj yim rau cov haujlwm tsim kho.
Rau cov txheej txheem ib puag ncig uas muaj chloride, duplex 2205 feem ntau yog tib qho stainless hlau specification uas muaj sia nyob 10-20 xyoo kev pabcuam lub neej lub hom phiaj ntawm kev ua haujlwm kub siab dua 60 ° C. 316L lwm txoj hauv kev ntsib chloride kev ntxhov siab corrosion tawg hauv 2-5 xyoos hauv ntau yam kev pabcuam tshuaj lom neeg, ua rau kev kaw tsis tau npaj tseg thiab cov phiaj xwm hloov pauv kim. Qhov zoo ntawm lub neej voj voog ntawm duplex 2205 yog qhov pom tseeb tshaj plaws hauv cov ntawv thov chloride nplua nuj qhov twg tus nqi hloov pauv thiab kev poob ntawm kev tsim khoom tsis tau npaj tseg tswj hwm kev suav nyiaj txiag lub neej voj voog. Cov ntaub ntawv siv rau kev ua raws li ASME code rau cov hlab ntsha siab stainless hlau muaj los ntawm BSI ntawm https://www.bsigroup.com/.
Cov Txheej Txheem Tsim Khoom Uas Khaws Cia Duplex Metallurgical Balance
Duplex 2205 kev tsim khoom xav tau kev tswj hwm cua sov nkag thiab kev tswj hwm qhov kub thiab txias interpass kom khaws cia qhov sib npaug ntawm austenite-ferrite theem ntawm kwv yees li 50-50. Kev nkag mus rau cua sov ntau dhau lossis lub sijhawm ntev ntawm 300-900 ° C tsim cov dej nag theem sigma uas ua rau cov hlau tawg. Wow Stainless qhia txog GTAW thiab GMAW vuam nrog qhov kub siab tshaj plaws ntawm 150 ° C, cov cua sov nkag mus rau 1.0 kJ / hli, thiab kev daws teeb meem tom qab vuam ntawm 1050-1100 ° C rau cov seem hnyav. Cov seem raws li-welded hauv cov ntsuas sib dua feem ntau yog siv yam tsis muaj kev kho cua sov tom qab vuam muab cov txheej txheem vuam tsim nyog txheeb xyuas qhov sib npaug ntawm theem txais tau.
Kev tsim nyog ntawm cov txheej txheem vuam raws li ASME Tshooj IX yog qhov yuav tsum tau ua rau kev tsim cov hlab ntsha siab duplex 2205, nrog rau cov ntaub ntawv qhia txog cov txheej txheem vuam (WPSRs) sau cov ntaub ntawv xaiv cov hlau filler, cov pa roj shielding, kev ntsuas kub interpass, thiab cov ntsiab lus ferrite raws li ASTM A240 txoj kev ntsuas. Wow Stainless tswj hwm cov WPSRs uas tau tsim nyog rau cov qauv duplex 2205 weld feem ntau suav nrog lub phaj sib koom ua ke, yeeb nkab-rau-yeeb nkab, yeeb nkab-rau-fitting, thiab cov qauv txuas ceg, txhawb nqa kev tsim kho project sai yam tsis muaj kev txhim kho WPSR ib qhov project.
Kev txiav, kev tsim, thiab kev ua haujlwm ntawm duplex 2205 ua raws li cov qauv kev coj ua ntawm cov hlau tsis xeb nrog kev saib xyuas rau kev xav txog kev hnav cov cuab yeej. Tus nqi ua haujlwm-hardening ntawm duplex 2205 tshaj 316L los ntawm kwv yees li 30%, xav tau kev txiav ceev txo qis thiab kev ua kom cov cuab yeej ruaj khov rau kev ua haujlwm machining. Wow Stainless tshaj tawm cov lus qhia txog kev ua haujlwm rau cov neeg siv khoom ua cov khoom siv theem nrab, suav nrog kev txiav ceev pom zoo, cov nqi pub, thiab cov khoom siv cuab yeej rau kev drilling, tapping, milling, thiab tig ua haujlwm ntawm duplex 2205 phaj, bar, thiab yeeb nkab khoom.
Cov Ntawv Thov Siv Lub Vessel Siab thiab Cov Yeeb Nkab Hauv Kev Ua Tshuaj
Duplex 2205 hauv cov chaw ua tshuaj lom neeg hauv North American ua haujlwm rau cov kav dej chloride-bearing reactor, kev tswj hwm sulfuric acid nruab nrab, FGD absorber sab hauv cov khoom siv hauv kev tsim hluav taws xob thee, thiab cov tshuab dej tsim hauv kev ua haujlwm roj thiab roj. ASME B&PV Code Seem VIII cov ntawv cim rau kev tsim lub nkoj siab siv cov ntaub ntawv duplex tau siv txij li xyoo 2018, txhawb nqa cov lus qhia dav dav txog kev tsim kho cog. Worley, Fluor, Bechtel, thiab Jacobs cov pab pawg engineering ib txwm teev cov duplex 2205 hauv kev tsim cov nroj tsuag tshuaj thoob plaws US Gulf Coast cov haujlwm.
Cov khoom siv sab hauv ntawm FGD absorber suav nrog cov demisters, trays, thiab cov spray nozzles hauv kev tsim hluav taws xob los ntawm thee sawv cev rau kev siv ntau rau duplex 2205 phaj thiab daim ntawv. Qhov chaw slurry chloride-laden hauv FGD absorbers ua rau muaj kev xeb sai ntawm cov hlau carbon thiab 316L lwm txoj hauv kev, nrog rau kev ua tsis tiav pitting feem ntau pom hauv 18-36 lub hlis ntawm kev pabcuam. Duplex 2205 absorbs txuas lub neej kev pabcuam mus rau 15-25 xyoo ntawm kev teem sijhawm tsis ua haujlwm, txo qis tus nqi hloov pauv thiab kev poob nyiaj tau los thaum muaj kev tsis ua haujlwm. Cov tuam txhab tsim hluav taws xob EPC suav nrog Sargent & Lundy, Burns & McDonnell, thiab Black & Veatch feem ntau qhia duplex 2205 rau kev tsim kho FGD absorber tshiab thiab cov haujlwm hloov pauv.
Kev tswj dej tsim tawm hauv kev ua haujlwm roj thiab roj av, tshwj xeeb tshaj yog cov dej ntws los ntawm Permian Basin, Bakken, thiab Canadian oil-sands processing, muaj cov teeb meem xeb uas sib haum nrog duplex 2205 lub peev xwm. Kev sib xyaw ua ke ntawm chlorides ntawm 50,000-200,000 ppm, CO2 yaj, thiab qhov kub ua haujlwm ntawm 60-90 ° C tsim cov nqi xeb hauv cov hlau carbon ntawm 1-5 hli / xyoo, nrog rau kev ntxhov siab xeb tawg pom hauv cov khoom siv 316L hauv 3-5 xyoos. Duplex 2205 txo cov nqi xeb kom tsawg dua 0.1 hli / xyoo thiab tshem tawm cov kev txhawj xeeb SCC, txhawb nqa 20-30 xyoo kev pabcuam lub neej lub hom phiaj ntawm cov khoom siv tswj dej tsim tawm. NACE MR0175 cov ntaub ntawv ua raws li tau hais los ntawm BSI ntawm https://www.bsigroup.com/.
Cov Ntaub Ntawv Xeem Zeb Uas ASME thiab ASTM Cov Qauv Xav Tau
Wow Stainless muab daim ntawv pov thawj kuaj zeb raws li EN 10204 3.1 tus qauv, nrog rau kev taug qab rau txhua lub phaj, daim ntawv, yeeb nkab, lossis bar rau qhov kub tshwj xeeb thiab daim ntawv khoom. Cov ntaub ntawv suav nrog cov tshuaj lom neeg sib xyaw ua ke raws li ASTM A240, cov khoom siv kho tshuab raws li ASTM A370 suav nrog lub zog tso zis, lub zog tensile, elongation, thiab hardness, ntxiv rau kev kuaj xeb raws li ASTM A923 tus qauv rau kev kuaj pom cov theem intermetallic tsis zoo hauv cov ntaub ntawv duplex. Daim ntawv pov thawj kuaj tau khaws cia digitally rau 10-xyoo khaws cia raws li ASME cov ntaub ntawv xav tau.
Kev kuaj ASTM A923 yog qhov tseem ceeb rau kev lees paub cov khoom duplex 2205 zeb kom ntes tau sigma theem lossis chi theem nag lossis daus uas tuaj yeem tshwm sim thaum kho cua sov tsis raug ntawm lub zeb. ASTM A923 Txoj Kev A (kev kuaj etch) thiab Txoj Kev B (kev kuaj cuam tshuam) ntes tau theem nag lossis daus uas, yog tias muaj, ua rau muaj kev coj cwj pwm tsis zoo hauv kev pabcuam. Wow Stainless ua qhov kev kuaj ASTM A923 ntawm txhua qhov duplex 2205 cua sov ua ntej tso tawm, nrog cov ntaub ntawv muab rau txhua daim ntawv pov thawj zeb ua pov thawj ntawm kev ua raws li txoj cai.
Rau cov ntawv thov lub thawv siab uas xav tau ASME stamp fabrication, Wow Stainless tuaj yeem muab cov ntaub ntawv pov thawj ob daim ntawv pov thawj nrog US ASME stamp thiab CE/PED European pressure equipment directive stamp rau tib daim ntawv pov thawj zeb. Daim ntawv pov thawj ob daim ntawv no txhawb nqa cov neeg tsim khoom ua haujlwm rau ob qho tib si North American thiab European project pipelines yam tsis muaj kev sib cais ntawm cov khoom siv thiab cov ntaub ntawv pov thawj. Daim ntawv pov thawj kuaj zeb tau kos npe los ntawm tus neeg sawv cev zoo uas tau tso cai uas nws cov ntaub ntawv pov thawj tuaj yeem txheeb xyuas tau los ntawm lub koom haum pov thawj lub npe online rau kev ua raws li cov ntaub ntawv pov thawj tag nrho.
Cov Kev Xav Txog Kev Muab Khoom Rau Cov Sijhawm Ua Haujlwm Hauv North America
Lub sijhawm ua khoom xa tuaj txij li kev lees paub qhov kev txiav txim mus rau US Gulf Coast lossis Canadian qhov chaw nyob yog txij li 14-20 lub lis piam rau cov phaj tuab (3-50mm) thiab cov sijhawm yeeb nkab txheem, nrog rau lub sijhawm ua khoom xa tuaj ntev dua rau cov yeeb nkab tshwj xeeb, cov phaj loj, lossis cov xaj me me hauv qab qhov tsawg kawg nkaus ntawm lub tshuab. Wow Stainless tswj hwm 300-500 metric tons ntawm duplex 2205 phaj khoom muag ntawm Wenzhou qhov chaw rau kev xa khoom sai mus rau North American project sites, nrog kev sib koom tes logistics txhawb nqa ob qho tib si FCL thiab LCL containerized xa khoom los ntawm Chaw nres nkoj Shanghai thiab Chaw nres nkoj Ningbo.
Kev npaj yuav khoom ntawm qhov project yuav tsum suav nrog lub sijhawm ua cov hlau tsawg kawg nkaus li 12-16 lub lis piam rau cov phaj tuab, cov phaj loj dua li tus qauv zeb (feem ntau 2.5-3.0 meter dav thiab 6-12 meter ntev), thiab cov yeeb nkab xaj uas xav tau kev kho cua sov lossis kev tshuaj xyuas sab nraud. Koom nrog Wow Stainless ntawm qhov project engineering conceptual lossis theem yooj yim-engineering kom xauv cov khoom muag ua ntej lub qhov rais teem sijhawm dov thiab kho cua sov kaw thaum lub sijhawm ua cov hlau 18-22 lub lis piam.
Rau cov kev xav tau sai sai ntawm North American project, Wow Stainless tswj hwm kev koom tes ntawm US Gulf Coast nrog tus neeg faib khoom hauv Houston uas muaj 30-50 metric tons ntawm duplex 2205 phaj thiab yeeb nkab hauv qhov loj me. Cov khoom muag hauv Houston no txhawb nqa 2-4 lub lis piam xa khoom mus rau cov tuam txhab tsim tshuaj lom neeg thiab cov neeg tsim khoom siv lub thawv siab rau kev kho thaum muaj xwm txheej ceev thiab cov kev xav tau me me. Cov khoom muag hauv Houston nqa cov ntawv pov thawj xeem sib phim thiab txhawb nqa cov ntaub ntawv zoo ntawm kev tsim khoom rau kev ua raws li kev tshuaj xyuas kev tsim kho project.
Rau cov lus nug txog kev yuav khoom ntawm duplex 2205 phaj, ntawv, bar, thiab cov yeeb nkab welded rau North American cov chaw ua tshuaj lom neeg lub nkoj siab thiab cov kav dej siv, pab pawg xa khoom Wow Stainless muab kev sab laj txog kev qhia tshwj xeeb, kev txhawb nqa kev hais nqe, thiab kev sib koom tes logistics. Cov qauv ntawv pov thawj kuaj zeb thiab cov ntaub ntawv ua raws li ASTM A240 muaj nyob ntawmnplooj ntawv khoom Wow Stainless.
Wow Stainless sau cov lus qhia txog duplex 2205 phaj, ntawv, bar, thiab cov yeeb nkab vuam ntawmdaim ntawv teev khoomCov ntaub ntawv pov thawj ua raws li ASTM A240, ASME B&PV Code, thiab ASTM A923 tau hais txog ntawmnplooj ntawv cov ntaub ntawv qhia txog Wow Stainlessnrog cov qauv ntawv pov thawj kuaj lub Hoobkas thiab cov ntawv sau sib koom tes ua haujlwm.
ASTM A240 stainless hlau cov lus qhia tau sau tseg los ntawm BSI cov qauv catalog ntawmbsigroup.com.
Kev Ua Raws Cai ntawm Cov Cai ntawm Lub Vessel Siab thiab Cov Qauv Sau Ntawv Zoo
Cov ntawv cim ASME B&PV Code Seem VIII rau kev tsim lub thawv siab siv cov ntaub ntawv duplex tau siv txij li xyoo 2018 tom qab kev tawm tswv yim dav dav hauv kev lag luam thiab kev tshawb fawb txog hlau. Cov Code Seem VIII Seem UHX tswj hwm kev tsim cov khoom siv cua sov tubular siv cov hlau duplex stainless hlau, thiab Seem UHA hais txog kev tsim cov thawv siab siab high-alloy suav nrog cov ntaub ntawv duplex. Wow Stainless muab cov khoom lag luam zeb nrog cov ntaub ntawv uas txhawb nqa cov ntawv thov ASME stamp thoob plaws Code Seem VIII scopes siv rau duplex 2205.
Cov kev cai tsim nyog rau cov txheej txheem tsim khoom rau duplex 2205 suav nrog cov lus qhia txog cov txheej txheem vuam (WPS) raws li ASME Tshooj IX, nrog rau kev faib tawm p-number thiab s-number rau pawg duplex alloy. Cov neeg tsim khoom uas ua haujlwm rau cov chaw tsim tshuaj lom neeg hauv North American feem ntau tsim nyog rau cov txheej txheem vuam duplex 2205 ntawm 6-12 lub hlis voj voog, nrog rau kev tsim nyog txhawb nqa los ntawm kev sim tensile, khoov, cuam tshuam, thiab kev nyuaj raws li ASME Tshooj IX cov kev cai tsim nyog rau cov txheej txheem vuam.
Cov ntaub ntawv zoo rau duplex 2205 yuav tsum txheeb xyuas ob qho tib si tshuaj lom neeg sib xyaw thiab theem sib npaug los txhawb cov ntawv thov kev pabcuam tseem ceeb. Wow Stainless ua qhov kev txheeb xyuas theem sib npaug ntawm txhua qhov kub siv ASTM A923 txoj kev, nrog rau cov ntaub ntawv pov thawj los ntawm hlau yaj los ntawm kev dov kub, annealing, thiab kev tshuaj xyuas zaum kawg. Qhov kev txheeb xyuas theem sib npaug txhawb nqa qhov kev ruaj ntseg ntawm cov hlau uas xav tau rau ASME stamp daim ntawv thov hla kev ua tshuaj lom neeg thiab cov xwm txheej kev pabcuam roj thiab roj.
Rau cov hlab ntsha ua cov tshuaj uas ua haujlwm ntawm qhov kub siab lossis nyob rau hauv cov chaw muaj chloride hnyav, ASTM A923 Txoj Kev C (kev kuaj xeb ib qho ASTM A763 Xyaum B) muab kev tsim nyog ntxiv ntawm kev ruaj ntseg ntawm cov hlau tsis pub dhau qhov kev txheeb xyuas cov tshuaj lom neeg. Cov txheej txheem kuaj mob tau hais txog hauv cov lus qhia txog kev yuav khoom siv ob chav los ntawm cov neeg ua haujlwm loj hauv North American uas tab tom nrhiav kev lees paub siab tshaj plaws ntawm kev tsim nyog ntawm cov khoom siv rau cov ntawv thov kev pabcuam tseem ceeb.
Rau cov neeg ua haujlwm hauv North American cov chaw ua tshuaj lom neeg, Wow Stainless txhawb nqa cov kev pab cuam yuav khoom nrog cov ntaub ntawv pov thawj kuaj zeb uas tau ntim rau kev koom ua ke tam sim ntawd rau hauv cov pob khoom ASME. Cov ntaub ntawv suav nrog cov ntawv pov thawj tshuaj lom neeg raws li ASTM A240, cov ntawv qhia txog khoom siv kho tshuab raws li ASTM A370, ASTM A923 cov ntawv qhia txog kev txheeb xyuas duplex, thiab cov ntaub ntawv taug qab uas txhawb nqa 10-xyoo kev khaws cia raws li cov txheej txheem ntaub ntawv ASME.
Tshaj li duplex 2205, Wow Stainless muaj super-duplex 2507 thiab duplex 2304 qib rau cov ntawv thov uas xav tau qib kev ua tau zoo dua li duplex 2205 lossis kev ua kom zoo dua. Super-duplex 2507 txhawb nqa kev pabcuam chloride-bearing ntawm cov concentration siab dua 100,000 ppm thiab qhov kub ua haujlwm txog li 130 ° C thaum
Cov qauv thoob ntiaj teb ntawm cov theem hlau tsis xeb duplex thiab cov txheej txheem sim raug xa mus los ntawm cov qauv ISO ntawmiso.org.
e duplex 2205 ncav cuag nws qhov kev ua tau zoo tshaj plaws. Duplex 2304 txhawb nqa cov ntawv thov ua tshuaj lom neeg uas xav tau kev ua haujlwm ntau heev uas duplex 2205 ua haujlwm-tawv ua rau muaj teeb meem tsim khoom.
Cov Lus Nug Feem Ntau
Duplex 2205 muaj cov txiaj ntsig zoo li cas dua li 316L stainless hlau rau cov txheej txheem chloride-bearing?
Duplex 2205 muab kwv yees li ob npaug ntawm lub zog ntawm 316L austenitic stainless (450 MPa vs 220 MPa yam tsawg kawg nkaus), ua rau cov qauv tsim phab ntsa nyias dua. Lub microstructure dual-phase muab kev tiv thaiv xeb zoo dua pitting thiab crevice, nrog PREN ntawm 35 piv rau 25 rau 316L. Rau cov chloride concentration siab dua 1,000 ppm thiab qhov kub ua haujlwm siab dua 60 ° C, duplex 2205 txhawb nqa kev pabcuam qhov twg 316L ntsib kev puas tsuaj pitting thiab kev ntxhov siab-corrosion-cracking hauv ob peb lub hlis.
Cov txheej txheem tsim khoom twg thiaj li khaws cia duplex 2205 metallurgical sib npaug?
Duplex 2205 kev tsim khoom xav tau kev tswj hwm cua sov nkag thiab kev tswj hwm qhov kub thiab txias interpass kom khaws cia qhov sib npaug ntawm austenite-ferrite theem ntawm kwv yees li 50-50. Kev nkag mus rau cua sov ntau dhau lossis lub sijhawm ntev ntawm 300-900 ° C tsim cov dej nag theem sigma uas ua rau cov hlau tawg. Wow Stainless qhia txog GTAW thiab GMAW vuam nrog qhov kub siab tshaj plaws ntawm 150 ° C, kev nkag mus rau cua sov txwv rau 1.0 kJ / hli, thiab kev daws teeb meem tom qab vuam ntawm 1050-1100 ° C rau cov seem hnyav.
Cov kev siv lub nkoj siab thiab cov kav dej twg yog cov lag luam tseem ceeb ntawm duplex 2205 hauv North America?
Duplex 2205 hauv North American cov chaw ua tshuaj lom neeg ua haujlwm pabcuam cov kav dej chloride-bearing reactor, sulfuric acid intermediate handling, FGD absorber cov khoom sab hauv hauv kev tsim hluav taws xob thee, thiab cov tshuab tsim dej hauv kev ua haujlwm roj thiab roj. ASME B&PV Code Seem VIII cov ntawv cim rau kev tsim lub thawv siab siv cov ntaub ntawv duplex tau siv txij li xyoo 2018, txhawb nqa cov lus qhia dav dav txog kev tsim kho vaj tse.
Wow Stainless muab cov ntaub ntawv pov thawj dab tsi rau kev kuaj zeb raws li ASME thiab ASTM cov qauv?
Wow Stainless muab daim ntawv pov thawj kuaj zeb raws li EN 10204 3.1 tus qauv, nrog rau kev taug qab rau txhua lub phaj, daim ntawv, yeeb nkab, lossis bar rau qhov kub tshwj xeeb thiab daim ntawv khoom. Cov ntaub ntawv suav nrog cov tshuaj lom neeg sib xyaw ua ke raws li ASTM A240, cov khoom siv kho tshuab raws li ASTM A370, ntxiv rau kev kuaj xeb raws li ASTM A923 tus qauv rau kev kuaj pom cov theem intermetallic tsis zoo hauv cov ntaub ntawv duplex.
Cov kws ua haujlwm hauv North American project yuav tsum xav tias yuav siv sijhawm ntev npaum li cas rau duplex 2
Cov ntaub ntawv ua raws li ASME Boiler thiab Pressure Vessel Code Seem VIII rau kev tsim cov thawv siab yog xa mus rau ASME cov lej thiab cov qauv teev ntawmasme.org.
205 daim phaj thiab yeeb nkab xaj?
Lub sijhawm ua khoom xa tuaj txij li hnub lees paub qhov kev txiav txim mus rau US Gulf Coast lossis Canadian qhov chaw nyob yog txij li 14-20 lub lis piam rau cov phaj tuab thiab cov sijhawm yeeb nkab txheem. Wow Stainless tswj hwm 300-500 metric tons ntawm duplex 2205 phaj khoom muag ntawm Wenzhou qhov chaw rau kev txiav txim xa khoom sai mus rau North American project sites, nrog rau kev sib koom tes logistics txhawb nqa ob qho tib si FCL thiab LCL containerized shipping.
Lub sijhawm tshaj tawm: Lub Xya Hli-02-2026
