Dab tsi yog qhov txawv ntawm Hastelloy B3 thiab C276 alloys?
Dab tsi yog qhov txawv ntawm Hastelloy B3 thiab C276 alloys?
Vim nws cov ntsiab lus molybdenum siab, Hastelloy B-3 ua tau zoo tshwj xeeb hauv kev txo qis ib puag ncig xws li hydrochloric acid, thaum C-276 muaj kev tiv thaiv corrosion ntau dua. Nrog nws cov npib tsib xee-chromium-molybdenum muaj pes tsawg leeg, nws tuaj yeem tiv taus ob qho tib si oxidizing acids (xws li ferric chloride) thiab txo cov kua qaub, ua rau C-276 tsim nyog rau kev siv tshuaj lom neeg. Txawm li cas los xij, hauv cov cheeb tsam tshwj xeeb acidic, B-3 pom zoo thermal stability thiab tsis kam mus rau hauv zos corrosion.
Qhov kub siab tshaj plaws rau Hastelloy C276 yog dab tsi?
Hastelloy C-276 yog npib tsib xee-molybdenum-chromium corrosion-resistant alloy. Qhov no alloy yog resistant rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion cracking. Hastelloy C-276 tsuas tuaj yeem ua kom tawv los ntawm kev ua haujlwm txias. Kev ua haujlwm kub ntau rau Hastelloy C-276 txuas ntxiv los ntawm qhov kub thiab txias txog li 750℃F (400 degree).
Hastelloy B-3 yog npib tsib xee- molybdenum alloy (nickel-raws li superalloy) uas nws cov yam ntxwv tseem ceeb yog nws cov corrosion kuj zoo heev hauv kev txo cov kua qaub (tshwj xeeb tshaj yog tsis yog -oxidizing acids xws li hydrochloric acid, sulfuric acid, thiab phosphoric acid) thiab siab {8}chloridetemperatures. Nws kuj tseem txhim khu kev tiv thaiv rau intergranular corrosion thiab thermal stability, hais txog kev ua brittleness teeb meem ntawm yav dhau los B-2 alloys. Nws yog tsim los rau qhov xav tau tshaj plaws corrosive tej yam kev mob nyob rau hauv cov khoom siv tshuaj, tshuaj industries, pickling khoom, thiab high-temperature txo ib puag ncig, ua rau nws yog ib tug ntawm cov saum toj kawg nkaus cov ntaub ntawv kev xaiv rau tuav muaj zog txo acid media.
Hastelloy C-276 yog nickel-molybdenum-chromium-tungsten superalloy. Nws lub ntsiab kom zoo dua yog nws yuav luag universal corrosion kuj, zoo tiv thaiv oxidizing muaj zog thiab txo cov acids, tov acids, chlorides, ntub chlorine gas, thiab hnyav acidic ntsev daws. Nws ua tau zoo tshwj xeeb hauv kev tiv thaiv pitting corrosion, crevice corrosion, thiab kev ntxhov siab corrosion tawg. Nws yog tsim los rau feem ntau corrosive kev lag luam ib puag ncig, xws li hydrometallurgy, tshuaj thiab tshuaj industries, flue gas desulfurization, pov tseg incineration, thiab marine engineering, ua rau nws yog ib tug ntawm cov saum toj kawg nkaus engineering cov ntaub ntawv nrog lub broadest corrosion kuj ntau ntawm cov lag luam muaj alloys.
Tshuaj muaj pes tsawg leeg ntawm Hastelloy C-276 vs Hastelloy B-3
| Element | Hastelloy C-276 (UNS N10276) Cov ntsiab lus (%) | Hastelloy B-3 (UNS N10675) Cov ntsiab lus (%) |
|---|---|---|
| Nickel | 57.0 min (Sib npaug) | 65.0 min (Sib npaug) |
| Molybdenum | 15.0 - 17.0 | 27.0 - 32.0 |
| Chromium | 14.5 - 16.5 | 1.0 - 3.0 |
| Hlau | 4.0 - 7.0 | 1.0 - 3.0 |
| Tungsten | 3.0 - 4.5 | 1.5 max |
| Cobalt | 2.5 max | 1.0 max |
| Vanadium | 0.35 max | 0.20 max |
| Manganese | 1.0 max | 3.0 max |
| Silicon | 0.08 max | 0.10 max |
| Cov pa roj carbon | 0.01 max | 0.01 max |
| Phosphorus | 0.04 max | 0.030 max |
| Sulfur | 0.03 max | 0.010 max |
| Aluminium | - | 0.50 max |
| Titanium | - | 0.20 max |
| Tooj | - | 1.5 max |
Mechanical Properties ntawm Hastelloy C-276 vs Hastelloy B-3
| Khoom | Hastelloy C-276 (Annealed) | Hastelloy B-3 (Annealed) |
|---|---|---|
| Tensile Strength, Qhov kawg | 690 MPa (100 ksi) | 845 MPa (122 ksi) |
| Tensile zog, tawm los (0.2% Offset) | 283 MPa (41 ksi) | 395 MPa (57 ksi) |
| Elongation ntawm Break | 40% (hauv 50 mm) | 50% (hauv 50mm) |
| Kev txo qis ntawm cheeb tsam | 50% | 70% |
| Hardness, Rockwell B | 87 PAB | 95 PAB |
| Hardness, Brinell | 190 HB | 215 HB |
Hastelloy B3 vs C276 - Corrosion Resistance
Hais txog kev tiv thaiv corrosion, Hastelloy B3 thiab C276 ua tau zoo heev. Txawm li cas los xij, lawv txhua tus muaj qhov zoo hauv qhov sib txawv corrosive ib puag ncig. Hastelloy B3 nthuav tawm tshwj xeeb muaj zog tiv thaiv kom tsis txhob muaj cov kua qaub thiab feem ntau siv rau hauv cov ntawv thov uas muaj sulfuric thiab hydrochloric acids. Nws cov ntsiab lus cobalt kuj tseem txhim kho nws qhov kev tiv thaiv rau qee yam kev txhim kho hauv zos, xws li pitting thiab crevice corrosion. Ntawm qhov tod tes, Hastelloy C276 siab dua molybdenum thiab tungsten cov ntsiab lus ua rau nws zoo tshaj hauv kev tiv thaiv oxidizing acids, tshwj xeeb tshaj yog nitric acid. Cov hlau no feem ntau yog cov khoom siv zoo tshaj plaws rau kev siv nrog oxidizing media lossis sib xyaw acid ib puag ncig.
Hastelloy B3 vs C276 - Fabrication thiab Weldability
Hastelloy B3 thiab C276 tuaj yeem ua tiav los ntawm kev siv ntau yam txuj ci, suav nrog kev ua haujlwm kub, ua haujlwm txias, tshuab, thiab vuam. Txawm li cas los xij, lawv qhov kev ua haujlwm vuam tuaj yeem sib txawv nyob ntawm qhov tshwj xeeb alloy thiab vuam tej yam kev mob. Hastelloy B3 feem ntau pom zoo weldability, nrog tsawg rhiab heev thiab carbide nag lossis daus thaum vuam. Qhov no tso cai rau kev tsim cov siab -lub zog thiab corrosion- tiv taus welds. Hastelloy C276 kuj muaj qhov zoo weldability, tab sis tej zaum yuav xav tau cov txheej txheem vuam nruj dua thiab tom qab-weld kho cua sov kom ntseeg tau tias qhov zoo ntawm corrosion kuj.
Kev sib piv Corrosion Resistance ntawm Hastelloy B3 thiab C276
Ob leeg Hastelloy B3 thiab C276 pom zoo corrosion kuj. Txawm li cas los xij, lawv txhua tus muaj qhov zoo hauv qhov sib txawv corrosive ib puag ncig. Hastelloy B3 muaj qhov tshwj xeeb muaj zog corrosion kuj los txo cov kua qaub thiab feem ntau siv rau hauv cov ntawv thov uas muaj sulfuric thiab hydrochloric acids. Nws cov ntsiab lus cobalt kuj tseem txhim kho nws qhov kev tiv thaiv rau qee yam kev txhim kho hauv zos, xws li pitting thiab crevice corrosion. Ntawm qhov tod tes, qhov siab dua molybdenum thiab tungsten cov ntsiab lus ntawm Hastelloy C276 ua rau nws ua tau zoo dua hauv kev tiv thaiv oxidizing acids, tshwj xeeb tshaj yog nitric acid. Cov hlau no feem ntau yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas muaj oxidizing media lossis sib xyaw acid ib puag ncig.
Daim ntawv thov ntawm Hastelloy C-276 vs Hastelloy B-3
| Kev lag luam / Daim Ntawv Thov Cheeb Tsam | Daim ntawv thov Hastelloy C-276 | Daim ntawv thov Hastelloy B-3 |
|---|---|---|
| Kev ua tshuaj lom neeg | Reactors, kab, tshav kub exchangers, piping, li qub, twj nyob rau hauv hnyav acid, chloride, thiab oxidizing ib puag ncig | Hydrochloric acid tuav cov khoom, sulfuric acid concentrators, pickling tso tsheb hlau luam, kua qaub rov qab systems |
| Tshuaj | Cov nkoj, reactors, thiab piping rau aggressive acid-raws li txheej txheem | Cov khoom siv rau siab -concentration hydrochloric acid thiab sulfuric acid txheej txheem, corrosion-cov kav dej |
| Pollution Control & Flue Gas Desulfurization | Scrubbers, ducting, kiv cua, dampers, stack liners nyob rau hauv ntub scrubber systems | Cheebtsam hauv cov kua qaub kua qaub heev, tshwj xeeb tshaj yog cov uas muaj hydrochloric lossis sulfuric acid |
| Pulp & Ntawv | Digesters, bleach nroj tsuag, tshuaj rov qab boilers raug rau acidic chloride daws | Siab -kub, siab -concentration acid tuav hauv pulping thiab bleaching theem |
| Acid Production & Kuaj | sulfuric acid, phosphoric acid, nitric acid ntau lawm khoom; chlorine thiab hypochlorite ib puag ncig | Concentrated hydrochloric acid thiab sulfuric acid cia, thauj, cua sov, thiab cov khoom siv tshuaj tiv thaiv |
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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@gneemetal.comrau ib nqe lus.
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