Hastelloy C-276® yog nickel-molybdenum-chromium alloy nrog corrosion kuj zoo heev nyob rau hauv ib puag ncig hnyav.Lub siab nickel thiab molybdenum cov ntsiab lus ua rau cov nickel steel alloy tshwj xeeb tshaj yog tiv taus pitting thiab crevice corrosion nyob rau hauv txo qhov chaw thaum chromium conveys tsis kam rau oxidizing media.Txawm hais tias muaj ntau qhov kev hloov pauv ntawm Hastelloy npib tsib xee alloy, Hastelloy C-276 yog nyob deb ntawm kev siv ntau tshaj plaws.
Txheej txheem cej luam ntawm Hastelloy C-276 yam ntxwv:
Hastelloy C-276 (N10276) muaj corrosion kuj zoo heev rau feem ntau corrosive xov xwm nyob rau hauv oxidation thiab txo tej yam kev mob.Kev tiv thaiv zoo heev rau pitting corrosion, crevice corrosion thiab kev nyuaj siab corrosion cracking.Cov hlau yog tsim rau ntau yam kev lag luam tshuaj uas muaj oxidizing thiab txo cov xov xwm.Cov ntsiab lus siab dua ntawm molybdenum thiab chromium ua rau cov alloy tiv taus corrosion los ntawm chloride ions, thiab lub caij tungsten ntxiv txhim kho nws cov corrosion kuj.
Hastelloy C-276 yog ib qho ntawm cov khoom siv nkaus xwb uas tuaj yeem tiv thaiv corrosion ntawm cov tshuaj chlorine, hypochlorite thiab tshuaj chlorine dioxide.Cov alloy muaj qhov tseem ceeb corrosion kuj tohigh-concentration chlorinated ntsev tov (xws li chlorinated Hlau thiab tooj liab chloride).
Loj:
| Hastelloy C276 yeeb nkab hom | Tawm txoj kab uas hla | Phab ntsa thickness | Ntev |
| NB Loj (hauv Tshuag) | 1/8 "~ 8" | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 TSI | Mus txog 6 meters |
| Hastelloy C276 Seamless Yeeb Nkab (Kev Cai Loj) | 5.0mm ~ 203.2 hli | Raws li kev xav tau | Mus txog 6 meters |
| Hastelloy C276 Welded Yeeb Nkab (hauv Tshuag + Kev Cai Loj) | 5.0mm ~ 1219.2 hli | 1.0 ~ 15.0 hli | Mus txog 6 meters |
Specification & Txheem:
Hastelloy C276 Yeeb Nkab yog them los ntawm 2 qhov tshwj xeeb xws li ASTM B622 thiab ASTM B619.Feem ntau ASTM B622 Yeeb Nkab yog tsim los ntawm seamless, qhov kev tsim kho ntawm ASTM B619 Pipe yog welded.Ntawm txhua qhov kev hloov pauv ntawm Hastelloy C276 Hastelloy Pipe yog qhov nrov tshaj plaws.
| hlau alloy | Plank | Bar | vuam rod | Vuam hlau | Seamless yeeb nkab | Welded yeeb nkab | Cov yeeb nkab fittings | Forging |
| Hastelloy C-276 (N10276) | SIB 575 B575 | SIB 574 B574 | ENiCrMo-4 | ERNiCrMo-4 | SIB 622 B622 | SIB 619/B619 | SIB 366 | SIB 564 |
| SWB 626/B626 | B366 | b564 ua |
Qib sib npaug rau Hastelloy C276 Seamless thiab Welded Pipes
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | EN | OR |
| Hastelloy C276 | 2.4819 ib | N10276 | wb 0276 | - | UA 65MV | NiMo16Cr15W | SIB 760 |
Alloy C276 yeeb nkab Chemical Composition
| Hastelloy C276 | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Tshuav | 0.010 max | 15.00 – 17.00 dr hab | max 1.00 Nws | 0.08 max | 4.00 – 7.00 Nws | 0.04 max | 0.03 max | 2.5 max | 14.50–16.50 dr hab |
Lub cev muaj zog ntawm Hastelloy C276:
| Qhov ntom g/cm3 | Melting point °C | Thermal conductivity λ / (W / m• ℃) | Tshwj xeeb kub muaj peev xwm J/kg • ℃ | Elastic modulus GPa | Shear modulus GPa | Kev tiv thaiv μΩ •m | Poisson tus piv | Coefficient ntawm linear expansion a/10-6 ℃-1 |
| 8.9 ib | 1325 ib 1370 ib | 10.2 (100 ℃) | 407 | 208 | 79 | 1.25 | 11.7 (20 ~ 100 ℃) |
Tus nqi me me ntawm txhua yam khoom ntawm Hastelloy C276 alloy ntawm chav tsev kub:
| alloystate | tensile zog Rm N / mm2 | Yield StrengthRP0.2 N / mm2 | ElongationA5% |
| Kev daws teeb meem | 690 ib | 283 | 40 |
Cov ntawv thov Hastelloy C276®
Hastelloy C-276 tau dav siv nyob rau hauv cov tshuaj thiab petrochemical teb, xws li nyob rau hauv lub Cheebtsam thiab catalytic systems uas hu rau chloride-muaj organics.Cov khoom no yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv kub kub, tov nrog impurities ntawm inorganic thiab organic acids (xws li formic acid thiab acetic acid), thiab seawater corrosive ib puag ncig.
Lwm qhov chaw thov:
● Pulp thiab ntawv kev lag luam, xws li kev zom zaub mov thiab bleaching hlab ntsha
● Ntxuav ntauwd, reheater, ntub chav kiv cua, thiab lwm yam hauv FGD system
● Cov khoom siv thiab cov khoom siv ua haujlwm hauv acid gas ib puag ncig
●Reactor rau acetic acid thiab acid khoom
●Sulfuric acid condenser
● Methylene diphenyl isocyanate (MDI)
● Kev tsim khoom thiab ua cov khoom tsis huv phosphoric acid
Post lub sij hawm: Oct-11-2021