Qhov txawv ntawm Inconel 718 thiab Hastelloy C-276 yog dab tsi?
Qhov txawv ntawm Inconel 718 thiab Hastelloy C-276 yog dab tsi?
Inconel 718 muaj qhov zoo heev - kub lub zog thiab oxidation tsis kam nyob rau hauv aerospace / fais fab sector, thaum Hastelloy C276 boasts superior corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv acidic/txo ib puag ncig, ua rau nws zoo tagnrho rau kev ua tshuaj. Inconel 718 ua qhov tseem ceeb ntawm cov qauv kev ntseeg siab ntawm qhov kub thiab txias, thaum C276 tseem ceeb rau cov tshuaj tiv thaiv. Txawm hais tias ob qho tib si tuaj yeem tiv taus qhov xwm txheej hnyav, C276 feem ntau ua tau zoo dua hauv cov cheeb tsam tshuaj lom neeg hnyav, thaum Inconel 718 ua tau zoo dua nyob rau hauv siab - qhov kub thiab txias cov qauv siv.
Qhov siab tshaj plaws ua haujlwm kub ntawm Hastelloy C276 yog dab tsi?
Hastelloy C-276 yog npib tsib xee- molybdenum-chromium alloy nrog zoo corrosion kuj. Cov hlau no tiv taus pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion cracking. Hastelloy C-276 tsuas yog ua kom tawv los ntawm kev ua haujlwm txias. Nws qhov ntsuas kub ua haujlwm yog los ntawm qhov kub qis mus rau 750℃F (400 degree).
Inconel 718 thiab Hastelloy C276 – 1. Cov lus txhais
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 aerospace, roj thiab roj, thiab tshuaj lom neeg kev lag luam.
Hastelloy C276, tseem hu ua UNS N10276, yog npib tsib xee -molybdenum-chromium superalloy renowned rau nws superior 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.
Kev sib piv tshuaj muaj pes tsawg leeg ntawm Inconel 718 thiab Hastelloy C-276
| Element | Hastelloy C-276 (wt%) | Inconel 718 (wt%) |
|---|---|---|
| Nickel (Ni) | Tshuav | 50.0 - 55.0 |
| Chromium (Cr) | 14.5 - 16.5 | 17.0 - 21.0 |
| Hlau (Fe) | 4.0 - 7.0 | Qhov nyiaj tshuav (tsawg dua lossis sib npaug rau 21.0) |
| Molybdenum (hli) | 15.0 - 17.0 | - |
| Tungsten (W) | 3.0 - 4.5 | - |
| Cobalt (zeeg) | Tsawg dua lossis sib npaug li 2.5 | Tsawg dua los yog sib npaug rau 1.0 |
| Manganese (Mn) | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug li 0.35 |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.01 | Tsawg dua lossis sib npaug li 0.08 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.35 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.015 |
| Sulfur (S) | Tsawg dua los yog sib npaug li 0.03 | Tsawg dua lossis sib npaug li 0.015 |
| Vanadium (V) | Tsawg dua los yog sib npaug li 0.35 | - |
| Aluminium (Al) | - | 0.20 - 0.80 |
| Titanium (Ti) | - | 0.65 - 1.15 |
| Niobium (Nb) | - | 4.75 - 5.50 |
| Tantalum (Ta) | - | Tsawg dua los yog sib npaug li 0.05 |
| Copper (Cu) | - | Tsawg dua los yog sib npaug li 0.30 |
Mechanical zog ntawm Hastelloy C-276 thiab Inconel 718
| Khoom | Hastelloy C-276 (Tswj chav Temp) | Inconel 718 (Tswj chav Temp) |
|---|---|---|
| Tensile Strength (Qhov kawg) | 690 MPa (100 ksi) min | 1241 MPa (180 ksi) min |
| Yield zog (0.2% Offset) | 283 MPa (41 ksi) min | 1034 MPa (150 ksi) min |
| Elongation (hauv 2 hauv / 50mm) | 40% min | 12% min |
| Hardness | Rb 100 max | Rb 98 - 105 (Annealed), Rc 36 - 44 (Aged) |
| Modulus ntawm Elasticity (Cov Hluas) | 205 GPa (29.7 x 10⁶ psi) | 200 GPa (29.0 x 10⁶ psi) |
| Qhov ntom | 8.89 g / cm³ (0.321 lb / hauv³) | 8.19 g / cm³ (0.296 lb / hauv³) |
Inconel 718 thiab Hastelloy C276 – 2. Cov yam ntxwv tseem ceeb
Cov yam ntxwv tseem ceeb ntawm Inconel 718:
Siab zog:Inconel 718 tuav lub zog siab txawm tias qhov kub thiab txias, ua rau nws tsim nyog rau kev thov cov qauv siv.
Zoo Corrosion Resistance:Cov hlau no nthuav tawm qhov zoo corrosion nyob rau hauv ntau qhov chaw, nrog rau cov uas muaj chlorides, sulfides, thiab oxidizers.
Zoo heev machinability:Inconel 718 yog ib qho yooj yim rau welding, braze, thiab daim ntawv, ua rau nws dav siv nyob rau hauv manufacturing txheej txheem.
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 yam ntxwv tseem ceeb ntawm Hastelloy C276:
Zoo heev Corrosion Resistance:Hastelloy C276 nthuav tawm cov tshuaj tiv thaiv zoo rau cov tshuaj chloride-induced stress corrosion cracking, pitting, thiab crevice corrosion, ua rau nws zoo tagnrho rau ib puag ncig corrosive heev.
Siab Thermal Stability:Cov hlau no khaws nws cov cuab yeej cuab tam ntawm qhov kub thiab txias, ua rau nws haum rau siab -kev siv kub.Zoo machinability:Hastelloy C276 yog ib qho yooj yim rau vuam thiab tsim, tab sis yuav tsum tau saib xyuas tshwj xeeb kom tswj nws cov corrosion kuj thaum vuam.
Tsawg magnetic permeability:Cov hlau no muaj qhov sib nqus permeability tsawg, uas txo qhov kev pheej hmoo ntawm magneto-corrosion hauv qee qhov chaw.
Cov ntsiab lus tseem ceeb sib txawv
Cov ntsiab lus tseem ceeb:Inconel 718=Siab- qhov kub thiab txias; Hastelloy C276=Zoo heev corrosion kuj.
Kev Siv Ib puag ncig:Inconel 718 yog qhov tsim nyog rau cov khoom siv uas raug thermal stress; C276 yog tsim rau cov xov xwm corrosive heev, xws li corrosive kua.
Tshuaj muaj pes tsawg leeg:C276 muaj cov ntsiab lus molybdenum ntau dua, yog li muab qhov zoo hauv kev txo qis / acidic corrosion.
Gnee Steel yog cov chaw tsim khoom ntawm ntau yam nickel{0}}raws li alloys, suav nrog Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 71807, Inconel 7107, Inconel Incoloy 800H / HT, Incoloy 825, Monel Alloy 400, Monel K500, thiab kub kub alloys. 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, tsheb, thiab nuclear zog kev lag luam, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy tus nqi nug lossis thov kom haum rau cov khoom siv alloy, thov koj xav tiv tauj peb ntawmru@gneesteelgroup.com rau ib nqe lus.