2205 Duplex Stainless Hlau Phaj

1. Txuj: ASTM A240 / ASME SA240
2. Thickness: 0.5mm-50mm
3. Dav: 1000-2500mm
4. Ntev: 1000-6000mm
5. Sib npaug: Duplex 2205, UNS S32205, WNR.1.4462

Xa kev nug

Khoom Taw qhia

Feem ntau2205 Duplex Stainless Hlau PhajCov ntaub ntawv qhia rau koj tib yam rau 6 yam: chromium 22–23%, molybdenum 3%, yield 450 MPa, ceev 7.8 g / cm³, ASTM A240. Ntawd yog daim ntawv spec. Dab tsi nws tsis qhia rau koj yog vim li cas 14 hli 2205 phaj nqi tsawg dua hauv lub nkoj siab dua li 20 hli 316L phaj, vim li cas koj tus neeg tsim khoom siv tsis tau cov txheej txheem vuam tib yam li 316L, thiab vim li cas "ASME BPVC Tshooj VIII tso cai rau kev ntxhov siab" yog tus lej sib txawv ntawm "ASME B31.3 tso cai kev ntxhov siab" txawm hais tias ob leeg hais 2205.

Cov Khoom Muag Khoom

Bar & Rod

Phaj & Ntawv

Coil & Sawb

Tube & Tube

Haum: Flange, Tee, Luj Tshib, Reducer thiab lwm yam.

Forging: Nplhaib, Ncej, Vajvoog, Thaiv thiab lwm yam.

Hu rau tam sim no

2205 duplex stainless steel plate UNS S32205 ASTM A240 hot rolled annealed pickled

Daim Ntawv Qhia Spec hais li cas vs Nws txhais li cas

ASTM A240 / ASME SA-240 npog chromium thiab chromium-nickel stainless hlau phaj rau cov hlab ntsha siab thiab kev siv dav dav. Rau UNS S32205 (2205), cov ntawv qhia tshwj xeeb yog:

Khoom / Khoom	ASTM A240 Txwv (UNS S32205)	Hom Mill Kub	Qhov txawv txhais li cas
Chromium	22.0 – 23.0%	22.5%	Tshaj 22% - qhov pib rau chloride SCC tsis kam
Nickel	4.5 – 6.5%	5.5%	Ntsuas ferrite theem; tsawg dhau=nkig
Molybdenum	3.0 – 3.5%	3.2%	Pitting kuj nyob rau hauv chlorides
Nitrogen	0.14 – 0.20%	0.17%	Boosts PREN; stabilizes austenite
Cov pa roj carbon	Tsawg dua lossis sib npaug li 0.030%	0.020%	Tsawg carbon los tiv thaiv rhiab heev
PREN (xws li)	Ntau dua lossis sib npaug li 35	~36.7	Qhov pib rau "duplex" kev ua tau zoo
Yield zog, min	450 MPa (65 ksi)	460-480 MPa	~ 2.6 × tawm los ntawm 316L (170 MPa)
Tensile zog, min	620 MPa (90 ksi)	650-700 MPa	~ 1.3 × tensile ntawm 316L
Elongation, min	25%	30%	Ductility rau kev sib sau thiab dov
Hardness, max	31 HRC (293 HWB)	28 HRC	Rau kev pabcuam qaub, Tsawg dua lossis sib npaug li 28 HRC ib NACE MR0175
Qhov ntom	7.8 g / cm³ (0.285 lb / hauv³)	-	Lub teeb dua carbon steel los ntawm ~ 3%
Melting ntau	1420-1465 ° C	-	Vuam qhov rais saum 1000 degree

Tus lej tseem ceeb tshaj plaws rau daim ntawv spec yog22% chromium pem teb. Hauv qab no, koj tsis muaj duplex stainless - koj muaj ntshiv duplex nrog kev cuam tshuam cov tshuaj chloride. Ntau lub mills tsim S31803 (qhov qub 2205 tsim nrog 21% Cr yam tsawg kawg nkaus) ntawm tus nqi me me; Yog tias koj qhov spec hais tias "S32205" koj tau txais cov chromium ntau dua thiab tus nqi PREN uas mus nrog nws.

Vim li cas thiaj yuav 2205 Phaj Hloov 316L Phaj

Rau feem ntau cov neeg yuav khoom, qhov kev sib piv tsis yog 2205 vs 2507. Nws yog 2205 vs.316L. Cov lus teb los ntawm ob yam: qhov hnyav (thiab yog li tus nqi) thiab chloride kuj.

Lub nkoj / Service	Cov khoom sib piv	Qhov hnyav / Tus nqi cuam tshuam
Lub nkoj siab, ambient seawater, 25 degree	14 hli 2205 vs 20 hli 316L	2205 phaj hnyav 30% tsawg dua; cov nqi khoom txuag 25-35% txawm tias ntawm 1.8 × tus nqi 316L
Desalination evaporator plhaub	12 hli 2205 vs 18 hli 316L	2205 txuag 33% ntawm phaj hnyav; txo skid hnyav, foundation nqi, nqa tus nqi
Offshore topside khoom ncej	8 hli 2205 vs 12 hli 316L	2205 txuag 33% qhov hnyav; tsawg txheej txheej, yooj yim installation
Tubesheet (heat exchanger)	2205 phaj (vs titanium rau seawater)	2205 txuag 50% + vs titanium; ASME BPVC VIII tsim nyog
Cia tank, dilute acid	2205 phaj (vs 316L)	2205 kav 2-3 × ntev dua hauv chloride-cov kab mob acid

Thickness, qhov ntau thiab tsawg thiab cov ntawv muaj

Peb muab 2205 phaj rau ASTM A240 / ASME SA-240 nyob rau hauv ntau yam nram qab no. Lwm cov thicknesses thiab txiav -rau-loj muaj nyob ntawm kev thov.

Daim ntawv	Thickness Ntau	Dav Ntau	Ntev Ntau	Ua kom tiav
Kub dov phaj (HRAP)	3.0-100 hli	1000-2500mm (txog 3000mm)	2000-12000 hli	No.1 (HR, annealed, pickled)
Cov ntawv txias txias	0.5-6.4 hli	1000-1500 hli	2000-6000 hli	2B, BA, No.4, iav
Plasma / laser txiav phaj	Raws li saum toj no	Kev cai	Kev cai	Raws li - dov los yog pickled
Phaj rau tubesheet (hnyav)	50-150 hli	mus txog 2500 mm	mus txog 6000 mm	No.1, machined ntsej muag

Tus qauv phaj thickness ntau peb khaws cia hauv Tshuag yog6mm mus rau 50mm, uas npog feem ntau cov hlab ntsha siab thiab kev siv cov txheej txheem. Hauv qab 6 hli dhau los ua "daim ntawv" thaj chaw (txias dov, 2B tiav). Tshaj 50 hli peb xaj kom loj rau qhov project tshwj xeeb; txhuas lub sij hawm yog feem ntau 6-10 lub lis piam vim hais tias hnyav phaj yuav tsum tau tshwj xeeb dov thiab tov annealing.

Standards, Certification thiab Documentation

Rau cov hlab ntsha siab thiab cov qauv siv, 2205 phaj tau muab rau cov qauv hauv qab no:

Txuj	Scope	Kev siv yam
ASTM A240 / ASME SA-240 Cov Lus Qhia	Chromium / Cr-Ni stainless hlau phaj rau cov hlab ntsha siab	Feem ntau; ua ntej
ASTM A480 / ASME SA-480 Cov Lus Qhia	Cov kev cai dav dav rau cov pav ca -rolled stainless	Tus khub rau A240
TS EN 10028-7	Stainless hlau tiaj cov khoom siv rau lub hom phiaj siab	European siab nkoj
TS EN 10088-3	Stainless hlau rau cov hom phiaj dav dav	European general
Kev Ua Haujlwm 1.4462	German khoom naj npawb	European lub npe
NACE MR0175 / ISO 15156-3	Sour service (H2S) ua raws	Roj & roj, 28 HRC max
ASTM A923 Cov Lus Qhia Tshwj Xeeb	Tshawb nrhiav kev cuam tshuam intermetallic theem hauv duplex	Weld txheej txheem kev tsim nyog

Cov ntaub ntawv xa nrog txhua daim ntawv xaj:

Cov ntaub ntawv	Txuj	Hom Rau
Mill Test Certificate (MTC)	EN 10204 3.1 lossis 3.2	Tag nrho cov khoom xa tuaj
Chemistry check (Cr 22–23%, Mo 3.0–3.5%, N 0.14–0.20%)	ASTM A 240 Cov Lus Qhia	Tag nrho cov khoom xa tuaj
Mechanical test report (yield, tensile, elongation, hardness)	ASTM A 370 Cov Lus Qhia Tshwj Xeeb	Tag nrho cov khoom xa tuaj
Kev daws cov ntaub ntawv annealing (1020-1100℃+ ceev dej quench)	Mill txheej txheem cov ntaub ntawv	Tag nrho cov khoom xa tuaj
Ferrite cov ntsiab lus (35-65% rau ASTM E562)	ASTM E 562 Cov khoom siv	Duplex welds
Intermetallic theem xeem	ASTM A923 Txoj Kev A	Welds rau qaub kev pab
Charpy cuam tshuam ntawm -46℃(Ntau dua lossis sib npaug rau 150 J nruab nrab, 3 tus qauv)	ASTM A 370 Cov Lus Qhia Tshwj Xeeb	Txias-kev pabcuam / subsea
Lub teb chaws ntawm keeb kwm / zeb qhov chaw	Kev lis kev cai	GCC thiab EU imports
PED conformity (rau EU cov khoom siv siab)	PEB 2014/68/EU	European shipping

Rau kev xa khoom ntawm GCC, daim ntawv teev cov ntaub ntawv nthuav dav kom suav nrog dual -tagged (cov xov tooj cua sov ntawm phaj THIAB daim ntawv pov thawj), AVL rau npe, thiab Saudi Arabia SASO ua raws. Nug ib daim ntawv teev npe ntawm RFQ theem kom koj paub tias dab tsi tuaj txog nrog cov khoom xa tuaj.

Qhov twg 2205 Phaj siv

Kev siv lub nkoj siab, kev tsim, thiab kev tsim khoom:

Kev lag luam	Qhov twg 2205 Phaj mus
Roj & roj	Separator hlab ntsha, scrubber plhaub, ntau lawm manifold lub cev, flare pawg linings, hydrocarbon cia
Desalination	SWRO siab- lub twj tso kua mis siab, evaporator plhaub, brine rhaub plhaub, cov kav dej txhawb nqa
Tshuaj / petrochemical	Reactor hlab ntsha, cov kua qaub cia tso tsheb hlau luam, kub exchanger tubesheets thiab plhaub
Pulp & ntawv	Digesters, tshuab tso tsheb hlau luam, dub cawv cua sov
Marine / offshore	Cov khoom siv saum toj kawg nkaus thav ntawv, cov twj tso kua dej tua hluav taws, cov phiaj xwm kev txhawb nqa
Kev tsim hluav taws xob	FGD absorber plhaub (2205 tsim nyog rau ~ 300 degree; saum toj no, hloov mus rau Inconel 625), cov dej txias
Mining	Slurry pipelines, leaching hlab ntsha, thickener plhaub

Txoj cai txiav txim rau kev kho dua tshiab ntawm 2205 phaj rau2507 super duplex phajyog tib yam li cov yeeb nkab kev txiav txim siab: chloride concentration siab tshaj ~ 5,000 ppm, H2S ib nrab siab siab tshaj 0.05 psi, los yog seawater kev pab kub siab tshaj ~ 50 degree. Rau 2205 phaj ntawm qhov kub siab tshaj 300℃(kev pabcuam txuas ntxiv), hloov mus rau Inconel 625 phaj.

Vuam Notes (Plate vs Pipe)

Phaj welds coj txawv ntawm cov yeeb nkab welds, thiab fabricator's WPS yuav tsum xav txog qhov no.

Qhov txawv	Yeeb Nkab Vuam	Phaj Vuam
Txoj hauj lwm	Txhua txoj haujlwm (6G tsim nyog)	Feem ntau tiaj tus (1G) thiab kab rov tav (2G)
Hom sib koom	Butt weld, ceg txuas	Butt weld, fillet weld, lap joint, tubesheet-rau-plhaub
Thaum tshav kub kub input	0.5 ~ 2.5 kJ / hli	Tib lub qhov rais - cua sov input tseem ceeb npaum li
Filler	ER2209 (feem ntau)	ER2209 (ib yam)
PWHT	Tsis txhob(Sigma Phase Risk)	Tsis txhob(Sigma Phase Risk)
Ferrite check	Weld + HAZ rau ASTM E562	Tib - weld + HAZ rau ASTM E562
Intermetallic theem xeem	ASTM A923 Txoj Kev A (welds)	Tib yam - ASTM A923 Txoj Kev A

Daim phiaj - tshwj xeeb txaus ntshai los saib rau:tuab - phaj welds(siab dua ~ 25 hli) yuav xav tauntau dhau nrog kev tswj qhov kub thiab txias (tsawg dua lossis sib npaug li 150 degree)vim cua sov tsim nyob rau hauv kev sib koom ua ke;tubesheet-rau- plhaub weldsyog qhov sib sib zog nqus grooves nrog siab ceev thiab muaj kev pheej hmoo ntawm cov cag tawg yog tias WPS tsis tsim nyog rau qhov sib koom ua ke geometry;clad phaj(2205 phaj nrog stainless los yog npib tsib xee alloy cladding txheej) yuav tsum tau cais cov txheej txheem vuam rau lub hauv paus 2205 thiab txheej cladding.

Yuav ua li cas muab tso rau hauv koj lub RFQ: "phaj yuav tsum tau welded rau ASME Tshooj IX tsim nyog WPS siv ER2209 muab tub lim, cua sov input 0.5-2.0 kJ / mm, interpass kub Tsawg tshaj los yog sib npaug rau 150 degree, ferrite cov ntsiab lus 35-65% ib ASTM E562 nyob rau hauv weld thiab A2. daim coupon,no PWHT."