Tshuaj muaj pes tsawg leeg thiab tus nqi ntawm Hastelloy C-22 thiab C-276
Tshuaj muaj pes tsawg leeg thiab tus nqi ntawm Hastelloy C-22 thiab C-276
Piv nrog rau C-276, Hastelloy C-22 muaj ntau dua chromium (20-22.5%) thiab tungsten (2.5-3.5%), thaum muaj cov ntsiab lus qis ntawm molybdenum (12.5-14.5%); C-276 muaj ntau dua molybdenum (15-17%) thiab tungsten (3-4.5%), thaum muaj cov ntsiab lus qis ntawm chromium (14.5-16.5%). Yog li, C-22 yog qhov tsim nyog rau oxidizing ib puag ncig, thaum C-276 yog qhov tsim nyog rau kev txo qis ib puag ncig. Txawm hais tias C-276 muaj cov ntsiab lus kim dua, nws tus nqi feem ntau yog siab dua vim yog kev tswj hwm purity nruj dua thiab qis dua ntim. Cov nqi hloov pauv, tab sis C-22 feem ntau kim dua ib kilogram dua li C-276.
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 kev ua haujlwm kub yog los ntawm qhov kub qis mus rau 750℃F (400 degree).
Hastelloy C22 thiab C276 Txheej txheem cej luam thiab qhov sib txawv
Hastelloy C276 yog lub siab -kev ua tau zoo nickel{2}}chromium- molybdenum alloy. Nws muaj kwv yees li 57% npib tsib xee, 16% chromium, thiab 16% molybdenum, nrog rau hlau, tungsten, thiab cobalt. Nws tus qauv tsim yog UNS N10276. C276 feem ntau yog siv nyob rau hauv ib puag ncig acidic, xws li sulfuric acid, hydrochloric acid, thiab chloride daws.
Hastelloy C22 tau tsim los txhim kho corrosion kuj ntawm C276 nyob rau hauv welded cheeb tsam. Nws tseem yog npib tsib xee-chromium- molybdenum alloy, muaj kwv yees li 56% nickel, 22% chromium, 13% molybdenum, thiab me me ntawm hlau, tungsten, thiab cobalt. Nws tus qauv tsim yog UNS N06022. Piv rau C276, C22 muaj qhov zoo dua thiab muaj kev tiv thaiv corrosion ntau dua. Nws kuj pom zoo ua rau pitting corrosion, crevice corrosion, intergranular corrosion, thiab kev nyuaj siab corrosion cracking.
Hastelloy C22 thiab C276 Chemical Composition Difference
Raws li tuaj yeem pom los ntawm lub rooj, Hastelloy C22 muaj cov ntsiab lus chromium ntau dua, yog li nthuav tawm muaj zog corrosion kuj nyob rau hauv oxidizing ib puag ncig. Hastelloy C276, ntawm qhov tod tes, muaj ntau dua molybdenum, tungsten, thiab hlau cov ntsiab lus, muab nws zoo dua corrosion kuj nyob rau hauv txo ib puag ncig thiab muaj zog acids, tshwj xeeb tshaj yog nyob rau hauv high kub.
| Element | Cov ntsiab lus ntawm Hastelloy C22 (UNS N06022/WN 2.4602) (%) | Cov ntsiab lus ntawm Hastelloy C276 (UNS N10276/WN 2.4819) (%) |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.01 |
| Manganese (Mn) | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua lossis sib npaug li 1.00 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.02 | Tsawg dua los yog sib npaug li 0.04 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.02 | Tsawg dua lossis sib npaug li 0.03 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.08 | – |
| Chromium (Cr) | 20.0 – 22.5 | 14.5 – 16.5 |
| Nickel (Ni) | Remainder (zeeg) | Remainder (zeeg) |
| Molybdenum (hli) | 12.5 – 14.5 | 15.0 – 17.0 |
| Cobalt (zeeg) | Tsawg dua lossis sib npaug li 2.5 | Tsawg dua lossis sib npaug li 2.5 |
| Hlau (Fe) | 2.0 – 6.0 | 4.0 – 7.0 |
| Tungsten (W) | 2.5 – 3.5 | 3.0 – 4.5 |
| Vanadium (V) | Tsawg dua los yog sib npaug li 0.35 | Tsawg dua los yog sib npaug li 0.35 |
Hastelloy C276 thiab C22 Lub cev muaj zog sib txawv
| Khoom | Hastelloy C22 (UNS N06022/WN 2.4602) | Hastelloy C276 (UNS N10276/WN 2.4819) |
| Qhov ceev (g / cm³) | 8.9 | 8.89 |
| Melting Point (zeeg) | 1325 – 1370 | 1350 – 1390 |
Hastelloy C276 thiab C22 Mechanical zog sib txawv
| Alloy thiab Condition | Tensile zog (Rm N / mm²) | Yield zog (RP0.2 N / mm²) | Elongation (A5%) |
| Hastelloy C22 | 690 | 283 | 40 |
| Hastelloy C276 Txias ua haujlwm% | Yield zog | Qhov kawg tensile zog | Elongation% |
| 0 | 455 MPa [66 ksi] | 842 MPa [122 ksi] | 40 |
| 40 | 1310 MPa [190 ksi] | 1531 MPa [222 ksi] | 3.8 |
| 55 | 1531 MPa [222 ksi] | 1758 MPa [255 ksi] | 3.4 |
| 75 | 1724 MPa [250 ksi] | 1999 MPa [290 ksi] | 3.9 |
Qhov sib txawv ntawm Corrosion Resistance ntawm Hastelloy C276 thiab C22
Hastelloy C-22, nrog nws cov ntsiab lus chromium thiab molybdenum siab, pom zoo corrosion kuj nyob rau hauv oxidizing ib puag ncig. Nws yog tshwj xeeb tshaj yog tiv taus chloride-induced localized corrosion, xws li pitting, crevice corrosion, thiab kev nyuaj siab corrosion cracking. Txawm li cas los xij, nws cov corrosion kuj nyob rau hauv high-temperature thiab txo ib puag ncig yog me ntsis qis dua li ntawm C276.
Hastelloy C-276, nrog rau nws cov molybdenum siab dua, tungsten, thiab hlau cov ntsiab lus, muaj zog corrosion kuj nyob rau hauv txo corrosive ib puag ncig, xws li cov uas muaj hydrogen thiab hydrogen sulfide. Nws yog qhov tsim nyog rau ntau yam kev mob corrosive, tshwj xeeb tshaj yog nyob rau hauv kev txo qis thiab qhov kub thiab txias.
Qhov sib txawv hauv siab -Tub kub Oxidation Resistance ntawm Hastelloy C276 thiab C22
Hastelloy C276 nthuav tawm cov oxidation zoo heev ntawm qhov kub thiab txias (txog 1038 degree), ua rau nws zoo tagnrho rau huab cua kub - kub thiab oxidizing ib puag ncig hauv kev lag luam xws li tshuaj lom neeg, roj av, thiab aerospace.
Hastelloy C22 yog tsim rau nruab nrab mus rau qhov kub thiab txias ib puag ncig (nyob ib ncig ntawm 815 degree), thiab ua tau zoo tshwj xeeb hauv chloride lossis oxidizing acid ib puag ncig. Txawm li cas los xij, nws qhov siab - kub oxidation kuj yog qis dua li ntawm C276.
Daim ntawv thov sib txawv ntawm Hastelloy C276 thiab C22
Hastelloy C276 feem ntau yog siv nyob rau hauv siab - kub, muaj zog acidic, thiab txo corrosive ib puag ncig. Nws yog dav siv nyob rau hauv cov roj thiab roj, tshuaj, refining, kws, thiab ntawv industries. Hauv kev ua haujlwm ntawm cov roj thiab roj, feem ntau yog siv los tsim cov tubing, casing, thiab liners vim tias nws tuaj yeem tiv taus corrosion hnyav los ntawm hydrogen sulfide, carbon dioxide, thiab chlorides. Tsis tas li ntawd, nws yog siv nyob rau hauv marine ib puag ncig los tsim cov khoom xws li li qub, twj tso kua mis, thiab kiv cua. Nws zoo heev tiv thaiv biofouling kuj ua rau nws yog ib qho khoom siv zoo tshaj plaws rau cov khoom siv hluav taws xob.
Hastelloy C22 yog qhov tsim nyog rau oxidizing xov xwm, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias thiab nyob rau hauv chloride -muaj tej yam kev mob. Hauv kev lag luam tshuaj lom neeg thiab petrochemical, nws feem ntau yog siv rau hauv cov khoom sib txuas nrog chloride- muaj cov organic teeb meem, nrog rau hauv cov kab ke catalytic. Nws yog tshwj xeeb tshaj yog haum rau siab -kub thiab corrosive ib puag ncig uas muaj impurities xws li formic acid, acetic acid, thiab txawm seawater.
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.