Kev sib piv ntawm Hastelloy C276 thiab Duplex Stainless Hlau 2205
Kev sib piv ntawm Hastelloy C276 thiab Duplex Stainless Hlau 2205
Hastelloy C276, vim nws cov ntsiab lus nickel / molybdenum siab, muaj qhov tshwj xeeb tsis kam tiv thaiv corrosion (acid thiab chloride resistance) tab sis kim heev; thaum duplex stainless hlau 2205 muab lub zog zoo heev thiab cov tshuaj chloride zoo ntawm tus nqi qis, ua rau nws zoo tagnrho rau kev siv cov qauv. Txawm li cas los xij, 2205 ua tau zoo tsawg dua nyob rau hauv qhov chaw muaj tshuaj lom neeg corrosive qhov twg C276 excels. Rau qhov xav tau cov tshuaj ua haujlwm ib puag ncig (pH 0-14, muaj ntau yam oxidizing agents), C276 yuav tsum xaiv; Thaum rau cov ntawv thov muaj zog hauv nruab nrab chloride / sulfide ib puag ncig xws li marine lossis petrochemical industries, duplex stainless hlau 2205 yog qhov kev xaiv zoo tshaj.
ASTM tus qauv rau duplex stainless hlau 2205 yog dab tsi?
ASTM A789 specification npog cov txheej txheem kev cai rau seamless hlab ua los ntawm duplex stainless hlau 2205. Duplex stainless hlau yog ib tug sib tov ntawm austenitic thiab ferritic stainless hlau, muab ntau dua corrosion kuj thiab lub zog.
Txheej txheem cej luam ntawm Hastelloy C276 thiab Duplex Stainless Hlau 2205
Hastelloy C276: xyuasIb tug npib tsib xee-raws li alloy uas nws qhov zoo tshaj plaws nyob rau hauv nws zoo heev corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv hnyav txo thiab oxidizing xov xwm. Nws tuaj yeem suav tias yog "qhov kawg riam phom" rau kev daws teeb meem corrosion heev, tab sis nws kim heev.
Duplex Stainless hlau 2205:Lub duplex stainless hlau uas nws cov txiaj ntsig zoo yog lub zog siab, zoo tiv thaiv chloride kev ntxhov siab corrosion tawg, thiab tus nqi zoo heev - ua tau zoo. Nws yog "siab-kev ua tau zoo hloov kho" rau cov qauv stainless hlau xws li 316L, haum rau cov ntawv thov uas xav tau lub zog siab dua thiab pitting corrosion kuj, tab sis nws qhov kev ua tau zoo nyob rau hauv huab cua corrosive ib puag ncig tsis zoo li C276.
Tshuaj muaj pes tsawg leeg ntawm Hastelloy C276 thiab Duplex Stainless hlau 2205
| Khoom (%) | Hastelloy C276 | TIAB SA 2205 | Lub luag haujlwm ntawm Element |
| Nickel (Ni) | Qhov nyiaj tshuav (~ 57%) | 4.5–6.5 | Txhim kho toughness thiab tiv thaiv kom tsis txhob acids thiab kev ntxhov siab corrosion |
| Chromium (Cr) | 14.5–16.5 | 21.0–23.0 | Txhim kho kev tiv thaiv oxidizing media |
| Molybdenum (hli) | 15.0–17.0 | 2.5–3.5 | Txhim kho pitting thiab crevice corrosion kuj |
| Nitrogen (N) | – | 0.08–0.20 | Ua kom lub zog thiab pitting tsis kam ntawm stainless hlau |
| Hlau (Fe) | 4.0–7.0 | Qhov nyiaj tshuav (~ 67%) | Lub hauv paus ntsiab lus |
| Tungsten (W) | 3.0–4.5 | – | Txhim kho molybdenum cov teebmeem thiab txhim kho corrosion kuj |
Lub siab nickel thiab molybdenum cov ntsiab lus hauv C276 steel yog qhov laj thawj rau nws cov corrosion kuj zoo heev . 2205 steel muaj cov ntsiab lus chromium siab, cov ntsiab lus molybdenum nruab nrab, thiab ntxiv nitrogen, uas ua rau lub hauv paus rau nws lub zog siab thiab zoo tiv thaiv pitting corrosion.
Mechanical Properties ntawm Hastelloy C-276 thiab Duplex Stainless Hlau 2205
Lub zog:
2205 nthuav tawm qhov ua tau zoo tshaj plaws piv rau C276. Vim nws cov duplex microstructure, lub zog tawm ntawm 2205 (Ntau dua lossis sib npaug rau 450 MPa) yuav luag ob npaug ntawm C276 (Ntau dua lossis sib npaug rau 315 MPa) thiab 316 stainless hlau (Ntau dua lossis sib npaug rau 205 MPa). Qhov no txhais tau hais tias cov phab ntsa nyias nyias tuaj yeem siv nyob rau hauv tib lub zog tsim, ua rau cov khoom siv sib zog.
Toughness thiab Ductility:
C276 outperforms 2205. Lub ntshiab austenitic qauv ntawm C276 muab nws zoo heev plasticity thiab toughness, tshwj xeeb tshaj yog nyob rau hauv qis kub. Thaum 2205 kuj muaj qhov zoo toughness, nws feem ntau qis dua ntawm C276.
Corrosion Resistance:
C276: Zoo heev. Nws muaj zog corrosion kuj rau ntau yam uas txo cov acids (xws li sulfuric acid, hydrochloric acid, phosphoric acid), oxidizing ntsev (xws li, Fe³⁺, Cu²⁺), chloride ions, cov kuab tshuaj, nrog rau cov chlorine ntub thiab hypochlorites. Nws pitting kuj sib npaug (PREN=%Cr + 3.3 × %Mo + 16 × %N) yog siab heev (kwv yees li 78).
2205 :zoo. Nws qhov kev tiv thaiv corrosion nyob deb tshaj li ntawm 304/316L stainless hlau, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj chlorine - muaj ib puag ncig. Nws cov pitting kuj sib npaug (PREN ≈ 35) yog siab dua 316L (≈26), tab sis qis dua C276. Nws ua tau zoo nyob rau hauv nruab nrab concentrations sulfuric acid, nitric acid, thiab lwm yam xov xwm, tab sis hnyav corrosion tshwm sim nyob rau hauv siab - kub concentrated sulfuric acid, hydrochloric acid, thiab lwm yam muaj zog txo acids.
Stress Corrosion Cracking (SCC): Ob qho tib si muaj kev tiv thaiv zoo heev rau chloride kev nyuaj siab corrosion cracking, ib qho txiaj ntsig sib koom.
Pitting thiab crevice corrosion:Ob leeg ua tau zoo, tab sis C276 outperforms 2205 ho. C276 tuaj yeem siv rau hauv qhov chaw huab cua nrog qhov kub thiab txias dua thiab cov tshuaj chloride ion concentrations.
Tsis yog -oxidizing acids (xws li sulfuric acid, hydrochloric acid):C276 ua tau zoo dua li 2205. 2205 tsis muaj kev tiv thaiv corrosion hauv cov kua qaub no, tshwj xeeb tshaj yog thaum kub kub.
Kev sib piv ntawm Daim Ntawv Thov Cheeb Tsam
Cov ntawv thov ntawm Hastelloy C276:
Qhov chaw xav tau tshaj plaws hauv kev lag luam tshuaj lom neeg: piv txwv li, reactors, kub exchangers, thiab piping.
Flue gas desulfurization (FGD) systems (piv txwv li, absorption towers, spray pipes).
Downhole Cheebtsam thiab cov kav dej hauv cov av qaub (siab H₂S, CO₂, Cl⁻ ib puag ncig).
Cov hlab ntsha thiab cov kav dej hauv kev lag luam tshuaj thiab tshuaj lom neeg zoo.
Cov chlorine ntub dej thiab sodium hypochlorite tuav cov cuab yeej.
Cov khoom tseem ceeb hauv kev siv khib nyiab pov tseg thiab kev kho dej khib nyiab.
Cov ntawv thov ntawm Duplex Stainless Hlau 2205:
Kev lag luam roj thiab roj: cov kav dej hauv qab hiav txwv, cov hlab ntsha siab, cov khoom siv hluav taws xob sib txawv (tshwj xeeb yog tsim nyog rau ib puag ncig uas muaj CO₂ thiab cov lej ntawm H₂S thiab Cl⁻).
Chemical tanker cia tank.
Digesters thiab bleaching khoom nyob rau hauv lub pulp thiab ntawv kev lag luam.
Petrochemical kev lag luam: atmospheric thiab nqus distillation units, tshav kub exchangers thiab piping nyob rau hauv catalytic cracking units.
Kev tsim vaj tsev: siv rau hauv cov chaw ntug dej hiav txwv, txuas hniav, thiab lwm yam kev siv uas yuav tsum tau muaj zog thiab huab cua tsis kam (raws li kev hloov rau 316L stainless hlau).
Kev sib piv cov ntsiab lus ntawm Hastelloy C-276 thiab 2205 steel
| Khoom | Hastelloy C276 | TIAB SA 2205 |
| Hom khoom | Nickel{0}}raws li alloy | Duplex stainless hlau |
| Main Advantage | Exceptional zuag qhia tag nrho corrosion kuj | Lub zog siab + Zoo chloride corrosion tsis kam + Nqis -kev ua tau zoo |
| Qhov tsis zoo | Tus nqi siab heev | Tsis zoo corrosion kuj nyob rau hauv muaj zog txo acids; nruj vuam yuav tsum |
| Tsim nyog ib puag ncig | "Universal" rau hnyav corrosive ib puag ncig, tshwj xeeb tshaj yog cov uas muaj txo acids, siab kub, thiab siab chloride ions | Chloride- muaj qhov nruab nrab / oxidizing ib puag ncig uas yuav tsum muaj lub zog siab |
| Nqi | Siab heev | Nruab nrab mus rau siab |
Vim li cas thiaj xaiv Gnee raws li koj cov nickel-Raws li Alloy Supplier
✅ Tshaj 18 xyoo ntawm kev xa tawm, cov khoom muag rau ntau tshaj 80 lub teb chaws
✅ Muaj ntawv pov thawj los ntawm ISO, SGS, thiab BV
✅ Cov khoom muag thoob ntiaj teb ntawm Inconel, Hastelloy, Incoloy, thiab Monel alloy tubing, daim hlau, thiab tuav
✅ Kev pabcuam kev ua haujlwm muaj - suav nrog txiav, polishing, CNC machining, thiab ntim
✅ Kev xa khoom sai hauv 7-15 hnub, txhawb nqa los ntawm cov neeg koom tes thoob ntiaj teb
📦 Ntim thiab Shipping
Tag nrho cov khoom siv stainless hlau tau ntim nrog cov hauv qab no:
Ntoo pallets los yog crates
Moisture -cov ntaub ntawv pov thawj
Daim ntawv lo nrog rau lub tshuab hluav taws xob, tus qauv, thiab cov ntawv loj
Shipped thoob ntiaj teb los ntawm hiav txwv, huab cua, los yog nthuav qhia
Hais txog Gnee Steel
Gnee Steel yog cov chaw tsim khoom ntawm nickel-raws li alloys, suav nrog Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X, Inconel 718, Inconel X. 800H / HT, Incoloy 825, Monel 400, Monel K500, thiab lwm yam khoom siv kub kub. Peb tshwj xeeb hauv kev tsim khoom thiab muag khoom ntawm cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob tsim hluav taws xob, tsheb, nuclear zog, thiab lwm yam, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Yog xav paub ntxiv txog cov nqi ntawm cov khoom siv alloy lossis customized alloy cov ntaub ntawv daws teeb meem, thov koj xav tiv tauj peb ntawm email ntawmss@gneesteel.comrau ib nqe lus.
Square Meters Ua
Cov neeg ua haujlwm Enterprise
Xyoo Kev Paub
Cov teb chaws koom tes
