Qhov txawv ntawm Inconel 718 thiab Hastelloy C276
Qhov txawv ntawm Inconel 718 thiab Hastelloy C276
Inconel 718 nthuav tawm lub zog tshwj xeeb ntawm qhov kub thiab txias (tsim rau aerospace, turbines, thiab lwm yam) thiab muaj qhov zoo corrosion kuj; thaum Hastelloy C-276 boasts unparalleled tsis kam mus rau hnyav tshuaj corrosion, tshwj xeeb tshaj yog nyob rau hauv chloride- nplua nuj, txo acidic ib puag ncig (tsim rau tshuaj ua, marine engineering, thiab lwm yam). Yog li ntawd, kev xaiv ntawm cov khoom yog nyob ntawm qhov tseem ceeb uas muab rau txhua yam muaj zog thiab tshuaj corrosion kuj. Inconel 718 ua tau zoo nyob rau hauv kev ntxhov siab thiab kub siab, thaum C-276, nrog nws cov ntsiab lus molybdenum siab, ua tau zoo nyob rau hauv corrosive acidic thiab chloride-muaj ib puag ncig.
Puas yog Inconel 718 nyuaj rau tshuab?
Cov npib tsib xee no -raws li superalloy yog cov khoom siv feem ntau hauv kev lag luam aerospace, muaj lub zog zoo thiab ua haujlwm kub. Txawm li cas los xij, cov khoom no ua rau nws nyuaj heev rau tshuab. Inconel 718 yog nquag ua hauj lwm ceev ceev, ua kom kub siab heev ntawm lub cuab yeej -workpiece interface, yog li ua kom ceev cov cuab yeej hnav.
Inconel 718, tseem hu ua UNS N07718, yog nag lossis daus -nickel hardening-chromium alloy uas sib txuas lub zog ntawm forged steel nrog corrosion kuj ntawm nickel-raws li alloys. Thawj tsim nyob rau xyoo 1950, nws tau dhau los ua cov khoom siv dav hauv kev lag luam xws li aerospace, roj thiab roj, thiab kev ua tshuaj lom neeg.
Hastelloy C276, tseem hu ua UNS N10276, yog npib tsib xee -molybdenum-chromium siab- kub alloy renowned rau nws tshwj xeeb corrosion kuj nyob rau hauv ib tug ntau yam ntawm corrosive ib puag ncig. Tsim nyob rau hauv 1960s, nws tau txij li thaum tau siv nyob rau hauv cov tshuaj xav tau tshaj plaws, roj thiab roj, thiab marine ib puag ncig.
Cov tshuaj muaj pes tsawg leeg ntawm Inconel 718 thiab Hastelloy C276
| Element | Hastelloy C-276 (UNS N10276) Cov ntsiab lus (%) | Inconel 718 (UNS N07718) Cov ntsiab lus (%) |
|---|---|---|
| Nickel | 57.0 min (Sib npaug) | 50.0 – 55.0 |
| Chromium | 14.5 – 16.5 | 17.0 – 21.0 |
| Hlau | 4.0 – 7.0 | Tshuav |
| Molybdenum | 15.0 – 17.0 | 2.80 – 3.30 |
| Tungsten | 3.0 – 4.5 | – |
| Cobalt | Tsawg dua lossis sib npaug li 2.5 | Tsawg dua lossis sib npaug li 1.00 |
| Niobium (Columbium) | – | 4.75 – 5.50 |
| Titanium | – | 0.65 – 1.15 |
| Aluminium | – | 0.20 – 0.80 |
| Cov pa roj carbon | Tsawg dua lossis sib npaug li 0.01 | Tsawg dua lossis sib npaug li 0.08 |
| Manganese | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.35 |
| Silicon | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.35 |
| Phosphorus | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.015 |
| Sulfur | Tsawg dua los yog sib npaug li 0.03 | Tsawg dua lossis sib npaug li 0.015 |
| Vanadium | Tsawg dua los yog sib npaug li 0.35 | – |
| Boron | – | Tsawg dua lossis sib npaug li 0.006 |
| Tooj | – | Tsawg dua los yog sib npaug li 0.30 |
| Tantalum | – | Tsawg dua los yog sib npaug li 0.05 |
Kev sib piv ntawm cov khoom siv kho tshuab ntawm Inconel 718 thiab Hastelloy C276
| Khoom | Hastelloy C-276 (Annealed) | Inconel 718 (Kev daws teeb meem + Hnub nyoog) |
|---|---|---|
| Tensile Strength, Qhov kawg | 690 MPa (100 ksi) | 1380 MPa (200 ksi) |
| Tensile zog, tawm los (0.2% Offset) | 283 MPa (41 ksi) | 1170 MPa (170 ksi) |
| Elongation ntawm Break | 40% | 12% |
| Kev txo qis ntawm cheeb tsam | 50% | 15% |
| Hardness, Rockwell | 87 PAB | 40 HRC |
| Hardness, Brinell | 190 HB | 400 HB |
Kev sib piv ntawm Cov Khoom Tseem Ceeb ntawm Inconel 718 thiab Hastelloy C276
Cov khoom tseem ceeb ntawm Inconel 718:
Siab zog:Inconel 718 tuav lub zog siab txawm tias qhov kub siab, ua rau nws tsim nyog rau kev thov cov qauv siv.
Zoo Corrosion Resistance:Cov hlau no nthuav tawm kev tiv thaiv corrosion hauv ntau qhov chaw, suav nrog cov chlorides, sulfides, thiab oxidizing agents.
Zoo heev machinability:Inconel 718 tau yooj yim welded, brazed, thiab tsim, ua rau nws muaj ntau yam hauv kev tsim khoom.
Tsawg Coefficient ntawm Thermal Expansion:Cov alloy muaj qhov sib npaug qis ntawm thermal expansion, txo cov thermal stress thaum lub sij hawm ua haujlwm siab - kub.
Cov khoom tseem ceeb ntawm Hastelloy C276:
Zoo heev Corrosion Resistance:Hastelloy C276 nthuav tawm tshwj xeeb rau cov tshuaj chloride-induced stress corrosion cracking, pitting, thiab crevice corrosion, ua rau nws zoo tagnrho rau corrosive ib puag ncig.
Siab Thermal Stability:Cov hlau no tuav nws cov khoom siv kho tshuab ntawm qhov kub thiab txias, ua rau nws haum rau siab -kev siv kub.
Zoo machinability:Hastelloy C276 tau yooj yim welded thiab tsim, tab sis qee qhov tshwj xeeb yuav tsum tau muab coj los siv thaum lub sij hawm vuam los tswj nws cov corrosion kuj.
Tsawg Magnetic Permeability:Cov hlau tsis tshua muaj hlau nplaum permeability, txo qhov kev pheej hmoo ntawm magnetostrictive corrosion hauv qee qhov chaw.
Environmental Suitability ntawm Inconel 718 thiab Hastelloy C-276
Xaiv cov hlau zoo rau kev siv hauv kev lag luam yuav tsum muaj cov khoom siv sib xws rau cov xwm txheej ib puag ncig tshwj xeeb uas cov khoom yuav ntsib. Inconel 718 thiab Hastelloy C-276 yog ob qho tib si npib tsib xee-raws li superalloys, tab sis lawv yog optimized rau txawv corrosive thiab thermal ib puag ncig. Kev nkag siab txog qhov zoo tshaj plaws ntawm daim ntawv thov ib puag ncig rau txhua lub alloy pab ua kom lub neej ntev, kev nyab xeeb, thiab kev siv nyiaj zoo ntawm cov khoom hauv ntau yam xws li aerospace, tshuaj ua haujlwm, thiab kev lag luam marine.
Ib puag ncig haum rau Inconel 718
Inconel 718 yog qhov tshwj xeeb zoo- haum rau qhov chaw hnyav uas muaj qhov kub thiab txias, thiab raug rau sulfides thiab hydrogen. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov roj turbines, dav hlau tshuab, refineries, thiab lwm yam kev siv aerospace qhov twg txhua yam muaj zog ntawm qhov kub thiab txias yog qhov tseem ceeb. Nws zoo heev creep kuj thiab qaug zog zog kuj ua kom ntseeg tau kev ua tau zoo nyob rau hauv cyclic thermal thiab mechanical loads. Tsis tas li ntawd, Inconel 718 qhov kev tiv thaiv zoo hauv hydrogen- ib puag ncig nplua nuj ntxiv dag zog rau nws daim ntawv thov hauv petrochemical thiab hydrogen ua cov nroj tsuag.
Ib puag ncig haum rau Hastelloy C-276
Hastelloy C-276 excels nyob rau hauv ib puag ncig corrosive heev uas chlorides, muaj zog acids (xws li sulfuric thiab hydrochloric acid), thiab txo cov neeg ua hauj lwm. Nws cov kev tiv thaiv zoo tshaj plaws rau pitting, crevice corrosion, thiab kev ntxhov siab corrosion tawg ua rau nws yog ib qho khoom siv zoo tshaj plaws rau cov nroj tsuag tshuaj, cov khoom siv tswj kev ua qias tuaj, thiab cov txheej txheem ntawm ntug dej hiav txwv uas raug corrosive seawater ib puag ncig. Lub alloy lub corrosion kuj nyob rau hauv ob qho tib si oxidizing thiab txo ib puag ncig kom lub neej ntev kev pab cuam nyob rau hauv daim ntawv thov uas tshuaj corrosion yog ib tug tseem ceeb kev txhawj xeeb.
Hauv cov ntsiab lus, Inconel 718 ua tau zoo tshaj plaws nyob rau hauv siab - qhov kub thiab txias, siab - ib puag ncig kev nyuaj siab nrog rau cov sulfur thiab hydrogen, thaum Hastelloy C-276 yog qhov zoo nyob rau hauv cov tshuaj lom neeg corrosive, chloride - nplua nuj, thiab acidic ib puag ncig. Kev xaiv ntawm cov hlau yog nyob ntawm qhov chaw ua haujlwm tshwj xeeb, yuav tsum muaj kev lag luam tawm ntawm kev tiv thaiv corrosion, cov khoom siv kho tshuab, thiab kev lag luam los ua kom zoo dua.
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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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