Txhais cov kev daws teeb meem txhim khu kev qha rau cov chaw muaj xeb hnyav - los ntawm Womic Steel
Kev daws cov teeb meem tiag tiag ntawm cov kav dej hauv cov xwm txheej corrosive thiab kev ntxhov siab siab
Nyob rau hauv cov chaw uasKev xeb los ntawm chloride, kev tawg ntawm kev ntxhov siab, thiab kev thauj khoom hnyavnyob ua ke, xaiv cov khoom siv yeeb nkab tsis raug ua rau muaj kev puas tsuaj ua ntej lub sijhawm, kev kaw tsis tau npaj tseg, thiab cov nqi siv tas mus li nce siab. Qhov no yog qhov tseebASTM A789 / ASTM A790 S31803 duplex stainless hlau yeeb nkabqhia lawv qhov txiaj ntsig tiag tiag.
At Womic Steel, peb tsim khoom thiab muab khoomS31803 duplex stainless hlau seamless thiab welded kav dejtsis yog ib yam khoom siv xwb, tab sis yog ib yam khoom sivkev daws teeb meem pipeline uas tau tsim tiav tag nrho, tsim los ua haujlwm tau zoo hauv kev siv dej hiav txwv, tshuaj lom neeg, kev tshem dej ntsev, thiab kev siv hluav taws xob.
Kev Tshawb Fawb Txog Kev Siv Tshuab: ASTM A789 / A790 thiab Kev Sib Tov Khoom Thoob Ntiaj Teb
ASTM A789 thiab ASTM A790 yog cov qauv thoob ntiaj teb tseem ceeb uas tswj hwmob lub yeeb nkab stainless hlaurau kev pabcuam siab thiab corrosion-resistant.
ASTM A789npog cov raj hlau tsis muaj qhov thiab welded duplex stainless hlau rau kev pabcuam corrosive dav dav.
ASTM A790txuas ntxiv cov kev cai no rau cov kav dej uas npaj raukev siv cov kav dej siab, kub siab, thiab cov qauv, ua rau nws yog qhov siv thawj zaug rau cov txheej txheem kav dej.
Qib hlauUNS S31803sawv cev rau ib qho classic22Cr ob chav stainless hlau, tsim los ua kom tiav kwv yees li50% austenite thiab 50% ferrite microstructure, xa qhov sib npaug zoo dua ntawm lub zog thiab kev tiv thaiv corrosion.
Thoob ntiaj teb, S31803 yog sib npaug rau:
EN 1.4462 / X2CrNiMoN22-5-3
ISO 3183 Chav Kawm Ob Chav
GB/T 20878 022Cr22Ni5Mo3N
Womic Steel ua kom cov khoom siv sib xws thoob plaws txhua tus qauv los ntawm kev tswj hwm cov tshuaj lom neeg thiab kev kho cua sov.
Cov Tshuaj Lom Zem ntawm ASTM A789 / A790 S31803 Duplex Stainless Steel Pipes
(UNS S31803 - Cov Tshuaj Lom Zem Ib Txwm Muaj)
| Khoom | ASTM A789 / A790 Qhov Yuav Tsum Tau Ua (%) | Kev Tswj Xyuas Sab Hauv Hlau Womic (%) | Kev Ua Haujlwm & Kev Tseem Ceeb ntawm Kev Siv Tshuab |
| Cov pa roj carbon (C) | ≤ 0.030 | ≤ 0.025 | Cov pa roj carbon tsawg txo cov carbide precipitation thiab txhim kho corrosion resistance |
| Silicon (Si) | ≤ 1.00 | ≤ 0.80 | Txhim kho qhov tsis kam oxidation thiab cov hlau molten fluidity |
| Manganese (Mn) | ≤ 2.00 | ≤ 1.50 | Txhim kho deoxidation thiab ua haujlwm kub |
| Phosphorus (P) | ≤ 0.030 | ≤ 0.025 | Tswj kom tsis txhob muaj kev tawg |
| Sulfur (S) | ≤ 0.020 | ≤ 0.010 | Cov sulfur tsawg ua rau muaj kev tawv thiab kev vuam zoo dua |
| Chromium (Cr) | 21.0 – 23.0 | 21.5 – 22.8 | Lub ntsiab lus tseem ceeb rau kev tiv thaiv corrosion thiab pitting |
| Nickel (Ni) | 4.5 – 6.5 | 5.0 – 6.2 | Ua kom ruaj khov theem austenite |
| Molybdenum (Mo) | 2.5 – 3.5 | 2.8 – 3.3 | Txhim kho kev tiv thaiv rau qhov xeb ntawm qhov pitting thiab crevice |
| Nitrogen (N) | 0.08 – 0.20 | 0.14 – 0.18 | Ua kom muaj zog thiab txhim kho kev tiv thaiv pitting (PREN) |
| Hlau (Fe) | Qhov Nyiaj Tshuav | Qhov Nyiaj Tshuav | Cov qauv matrix |
Lus Cim Txog Kev Siv:
Los ntawm kev tswj hwm nitrogen thiab chromium nruj, Womic Steel ua kom muaj kev ruaj khovTus nqi PREN ≥ 35, tseem ceeb rau dej hiav txwv thiab cov chaw muaj chloride ntau.
Cov Khoom Siv Kho Tshuab ntawm ASTM A789 / A790 S31803 Duplex Stainless Steel Pipes
(Kev daws teeb meem Annealed)
| Vaj tse | ASTM A789 / A790 Qhov Yuav Tsum Tau Tsawg Kawg Nkaus | Kev Ua Haujlwm Hlau Womic Ib Txwm Muaj |
| Lub zog tensile (Rm) | ≥ 620 MPa | 650 – 750 MPa |
| Lub Zog Tawm (Rp0.2) | ≥ 450 MPa | 480 – 550 MPa |
| Kev ntev (A) | ≥ 25% | ≥ 30% |
| Qhov nyuaj | ≤ 290 HB | 250 – 280 HB |
| Kev Nyuaj Siab Thaum Cuam Tshuam (xaiv tau, raws li qhov project) | Raws li tau teev tseg | Ua raws li qhov xav tau tag nrho |
| Cov ntsiab lus Ferrite | Tsis tau teem caij ua lej | Tswj kom tau qhov zoo tshaj plaws ntawm ob lub duplex |
Qhov Zoo ntawm Kev Tsim Kho:
Piv rau cov qib austenitic xws li 316L, S31803 muaj yuav luagob npaug ntawm lub zog tsim tawm, ua rau phab ntsa nyias dua, txo qhov hnyav ntawm lub kaw lus, thiab ua haujlwm tau zoo dua.
Txheej Txheem Tsim Khoom: Seamless thiab Welded Excellence
Kev Tsim Khoom Yeeb Nkab Tsis Muaj Qhov Txuas
Cov kav dej S31803 uas tsis muaj qhov sib txuas yog tsim los ntawm kev tho qhov kub, kev ncab, thiab kev ua tiav txias. Txoj kev no ua kom cov phab ntsa tuab sib npaug, qhov zoo ntawm qhov chaw, thiab kev tiv taus siab zoo, tshwj xeeb tshaj yog rau cov kav dej uas muaj kev ncaj ncees.
Kev Tsim Khoom Siv Yeeb Nkab Welded
Rau cov kav dej welded, Womic Steel sivcov thev naus laus zis vuam TIG thiab Plasma uas muaj qhov tseeb siab, siv kev tswj hwm duplex-qib filler kom ntseeg tau tias cov hlau vuam tsis kam tiv taus corrosion phim cov khoom siv hauv paus. Tom qab vuamkev daws teeb meem annealingyog qhov yuav tsum tau ua, rov qab kho qhov sib npaug ntawm theem ob thiab tshem tawm cov kev ntxhov siab seem.
Ob qho tib si cov kav dej seamless thiab welded raug kuaj xyuas zaum kawg thiab cov qauv ntawv pov thawj zoo ib yam.
Kev Kho Mob Kub thiab Kev Tswj Ferrite
Kev kho cua sov kom zoo yog qhov tseem ceeb rau kev ua haujlwm ntawm cov hlau tsis xeb duplex. Womic Steel sivkev daws teeb meem feem ntau nyob rau hauv 1070–1120 ° C, ua raws li kev tua dej sai. Cov txheej txheem no:
Yaj cov theem intermetallic uas ua rau puas tsuaj
Rov qab kho qhov zoo tshaj plaws ntawm austenite-ferrite sib npaug
Ua kom muaj zog tiv taus corrosion thiab toughness siab tshaj plaws
Cov ntsiab lus ntawm Ferrite raug txheeb xyuas siv cov khoom siv metallographic thiab cov cuab yeej ntsuas ferrite, kom ntseeg tau tias ua raws li ob qho tib si ASTM cov kev cai thiab cov lus qhia tshwj xeeb rau qhov project.
Kev Tshuaj Xyuas, Kev Ntsuas, thiab Kev Taug Qab Tag Nrho
Txhua lub yeeb nkab ASTM A789 / A790 S31803 uas Womic Steel muab los ntawm yog raug rau ib qhokev tshuaj xyuas tag nrho, suav nrog:
l Kev tshuaj xyuas cov tshuaj lom neeg
l Kev sim tensile thiab mechanical
Kev ntsuas siab hydrostatic lossis pneumatic
Kev kuaj ultrasonic (UT) thiab kev kuaj tam sim no eddy (ET)
l Kev txheeb xyuas cov ntsiab lus Ferrite
ASTM G48 Txoj Kev A kuaj xeb thaum xav tau
Txhua lub yeeb nkab yog tag nrho traceable, nrogDaim ntawv pov thawj khoom siv EN 10204 3.1 lossis 3.2muab rau ib tus neeg siv khoom lossis qhov project xav tau.
Peev Xwm Tsim Khoom, Kev Muab Khoom Siv Tau Yooj Yim, thiab Txoj Cai Tsis Muaj MOQ
Womic Steel tswj cov khoom muag zoo ntawm cov khoom siv raw duplex stainless hlau thiab cov khoom tiav ib nrab, ua rau peb txhawb nqa ob qho tib siCov haujlwm loj EPCthiabkev txiav txim sai me me.
Muajtsis muaj qhov tsawg kawg nkaus kom muaj nuj nqisTxawm tias ib lub yeeb nkab xwb los kuj muaj daim ntawv pov thawj tag nrho, ua rau peb yog tus khub koom tes zoo rau kev saib xyuas, hloov pauv, thiab cov haujlwm sim.
Lub sijhawm ua cov hmoov txhuas ib txwm muaj:
Qhov ntau thiab tsawg ntawm cov khoom lag luam: xa khoom sai
Kev tsim khoom tshwj xeeb: kev teem sijhawm zoo tshaj plaws nrog cov sijhawm pob tshab
Cov txiaj ntsig ntawm kev ua khoom, kev ntim khoom, thiab kev xa khoom thoob ntiaj teb
Kev Pabcuam Tsim Khoom thiab Ua Haujlwm
Ntxiv rau ASTM A789 / A790 S31803 duplex stainless hlau kav dej,Womic Steel muab cov kev pabcuam tsim khoom thiab ua cov khoom siv yooj ywm, cia cov neeg siv khoom tau txaiscov khoom semi-tiav lawm lossis npaj txhij rau kev teeb tsaraws li cov duab kos ntawm qhov project.
Cov kev pabcuam ib txwm muaj xws li cov yeeb nkabcov khoom siv ua ntej, cov khoom sib dhos welded, thiab cov khoom siv tshuab, pab txo qhov chaw ua haujlwm thiab lub sijhawm teeb tsa.
Muaj Kev Ua Haujlwm Scope
| Hom Kev Pabcuam | Muaj peev xwm |
| Txiav Yeeb Nkab | Qhov ntev ruaj khov, txiav raws li qhov project |
| Beveling & Xaus Machining | Kev npaj vuam raws li ASME / ISO |
| Kev Vuam & Kev Ua Ntej | Cov yeeb nkab spools, cov yeeb nkab welded sib dhos |
| Kev Tshawb Fawb & Kev Ua Qhov | Cov qhov ntsuas, qhov qhib ceg |
| Khoov | Khoov txias nrog lub vojvoog tswj tau |
| Kev Tsim Khoom & Kev Siv Tshuab | Kev txiav qhov, qhov qhib tshwj xeeb, cov khoom seem tshwj xeeb |
Txhua txoj haujlwm tsim khoom yog ua raws licov txheej txheem vuam tsim nyog thiab kev tswj qhov ntev, xyuas kom meej tias cov khoom siv muaj kev ncaj ncees thiab ua raws li cov lus qhia ntawm qhov project.
Rau kev xa khoom xa tawm, cov kav dej raug tiv thaiv sivCov ntaub ntawv VCI tiv thaiv xeb, PE qhwv, txhawb nqa bundling, thiab seaworthy ntim khoom, xyuas kom meej tias muaj kev huv thiab tiv thaiv xeb thaum lub sijhawm thauj mus los ntev.
Peb pab neeg logistics ua haujlwm ze nrog cov kab xa khoom loj, nrhiav kom tau qhov chaw ruaj khov ntawm lub nkoj thiab cov kev daws teeb meem thauj khoom sib tw rau kev xa khoom thoob ntiaj teb.
Cov Ntawv Thov ntawm S31803 Duplex Stainless Steel Pipes
Womic Steel ASTM A789 / A790 S31803 cov kav dej siv dav hauv:
l Kev tsim roj thiab roj av thiab kev ua tiav
l Cov kab ke hauv hiav txwv thiab hauv dej hiav txwv
l Cov nroj tsuag tshuaj lom neeg thiab petrochemical
l Desalination thiab seawater tuav tshuab
l Kev lag luam pulp & ntawv
Daim ntawv thov Marine thiab shipbuilding
Xaiv Womic Steel Txhais Tau Tias Xaiv Kev Ntseeg Tau
Kev xaiv Womic Steel txhais tau tias xaiv ntau dua li cov khoom siv ua raws li txoj cai. Nws txhais tau tias xaiv ib qhotag nrho cov txheej txheem tsim khoom pob tshab, kev tshuaj xyuas hlau uas tau txheeb xyuas, kev sim ua kom nruj, kev muab khoom yooj ywm, thiab kev xa khoom thoob ntiaj teb uas ntseeg tau - ua ke rau hauv ib qho kev daws teeb meem txhim khu kev qha.
Peb txaus siab rau peb cov kev pabcuam kho kom haum rau koj, cov voj voog tsim khoom sai, thiab lub network xa khoom thoob ntiaj teb, kom ntseeg tau tias koj cov kev xav tau tshwj xeeb tau raug ua tiav nrog kev ua tib zoo thiab kev ua tau zoo.
Lub Vas Sab:www.womicsteel.com
Email: sales@womicsteel.com
Xov tooj/WhatsApp/WeChat: Victor: +86-15575100681 los yog Jack: +86-18390957568
Lub sijhawm tshaj tawm: Lub Ob Hlis-05-2026