Petrochemical processors, cov chaw tsim hluav taws xob, thiab cov chaw tsim khoom hnyav cia siab rauIncoloy 800 series- tshwj xeebIncoloy 800, 800H, thiab 800HT kav-kom tswj tau cov qauv kev ncaj ncees thiab tiv thaiv kev puas tsuaj creep rupture. HT PIPE is aincoloy 800 800h 800ht phaj yeeb nkabtus xa khoom nrog 15+ kev xa tawm.Tiv tauj pebkom paub ntau ntxiv thiab quotes dawb!
Decoupling qhov txawv: 800 vs . 800H vs . 800HT
1. Incoloy 800 (UNS N08800 / EN 1.4876)
Qhov no yog lub hauv paus variant. Nws nta cov ntsiab lus dav dav carbon (txog0.10% siab tshaj) thiab feem ntau yog muab rau hauv lub zeb -annealed mob. Vim tias nws tsis muaj qhov loj me me uas yuav tsum tau ua, nws cov khoom siv kho tshuab tau ua kom zoo rau kev tiv thaiv corrosion ntawm qis mus rau nruab nrab siab - qhov kub thiab txias kev pab cuam (txog li593℃/ 1100℃F). Saum toj no qhov pib, nws tsis kam mus creep deformation poob ho.
2. Incoloy 800H (UNS N08810 / EN 1.4958)
Engineered meej meej kom kov yeej qhov siab - qhov kub thiab txias txwv ntawm tus qauv Alloy 800,Incoloy 800 Htxwv cov ntsiab lus carbon rau lub qhov rais nruj ntawm0.05% rau 0.10%. Qhov tseem ceeb tshaj, nws tau dhau los ua qhov siab -kub tshuaj annealing txheej txheem (feem ntau ntawm1150 degree), uas ua rau ib tug tswj, coarse grain loj ntawmASTM Tsis yog . 5 lossis loj dua. Coarser grain ciam teb ua rau qeeb qeeb nplej - ciam teb zawv zawg, uas yog lub hauv paus txheej txheem tom qab siab - kub nkag.
3. Incoloy 800HT (UNS N08811 / EN 1.4959)
Raws li lub feem ntau engineered variant nyob rau hauv tsev neeg no,Incoloy 800 HTrefines cov chemistry ntawm 800H txawm ntxiv. Nws txwv cov pa roj carbon nruj me ntsis rau0.06% rau 0.10%thiab dictates ib tug ua ke Aluminium thiab Titanium cov ntsiab lus ntawm0.85% rau 1.20%. Txoj kev daws teeb meem -kev kho annealing yog nruj me ntsis saib xyuas kom ntseeg tau tias cov nplej ntxhib loj thaum ua kom muaj kev tswj hwm nag lossis daus ntawm sub-microscopic sub-theem, ua kom muaj kev ntxhov siab ntau tshaj - cov yam ntxwv tawg saum toj no700 degree.
Chemical Comparison Matrix
| Element (wt%) | Incoloy 800 (UNS N08800). | Incoloy 800H (UNS N08810) | Incoloy 800HT (UNS N08811) Cov. |
| Nickel (Ni) | 30.0 – 35.0 | 30.0 – 35.0 | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 | 19.0 – 23.0 | 19.0 – 23.0 |
| Cov pa roj carbon (C) | 0.10 Max | 0.05 – 0.10 | 0.06 – 0.10 |
| Aluminium (Al) | 0.15 – 0.60 | 0.15 – 0.60 | 0.25 – 0.60 |
| Titanium (Ti) | 0.15 – 0.60 | 0.15 – 0.60 | 0.25 – 0.60 |
| Al + Ti | 0.30 – 1.20 | 0.30 – 1.20 | 0.85 – 1.20 |
| Hlau (Fe) | Tshuav (39.5 Min) | Tshuav (39.5 Min) | Tshuav (39.5 Min) |
Siab -Tsub Creep thiab Mechanical Integrity
Thaum xaiv qhov hnyav - cov yeeb nkab phab ntsa rau siab - cov kav dej kub siab lossis cov kav dej catalyst, kev ua haujlwm ntawm cov tshuab tuaj yeem raug ntsuas thoob plaws ob thaj chaw sib txawv:
Tsawg-rau-Moderate Temperature Mechanicals (< 600°C)
Hauv qhov rais no,Kev 800exhibits siab tensile zog thiab zoo yield yam ntxwv. Nws cov qauv zoo tshaj plaws muab kev tiv thaiv zoo rau qaug zog thiab ib txwm muaj zog tensile tsis ua haujlwm.
High-Temperature Creep-Rupture Zone (>600 degree)
Thaum kub tshaj600℃(1112℃F), txheem alloy 800 poob nws qhov zoo dua.Incoloy 800 Hthiab800 HTcov kav dej yuav tsum tau ua vim lawv yog Code- tsim nyog raws liASME Boiler thiab Pressure Vessel Code (BPVC)rau elevated -kub tus qauv siv.
Manufacturing Specifications thiab Dimensions
Kev lag luamIncoloy 800, 800H, thiab 800HT kavyog tsim nyob rau hauv ob qho tib si seamless thiab welded configurations, ua raws li nruj thoob ntiaj teb cov qauv:
ASTM B407 / ASME SB407 Cov Lus Qhia:Txuj kev qhia tshwj xeeb rau Nickel-Iron-Chromium alloy seamless yeeb nkab thiab raj.
ASTM B514 / ASME SB514 Cov Lus Qhia:Npog welded Nickel-Iron-Chromium alloy yeeb nkab.
ASTM B775 / ASME SB775 Cov Lus Qhia:Cov kev cai dav dav rau ntau pawg ntawm nickel alloy welded yeeb nkab.
Fabrication, Vuam
Welded pob qij txha feem ntau yog cov kev sib txuas tsis muaj zog tshaj plaws nyob rau hauv siab -cov kav dej kub. FabricatingIncoloy 800 seriesCheebtsam yuav tsum tau ua raws li cov txheej txheem tswj thermal.
Kev xaiv khoom siv
Vim tias cov alloys no muaj qhov sib txuam coefficient ntawm thermal expansion, xaiv cov hlau muab tub lim kom raug tiv thaiv siab - kub tsis ua hauj lwm.
Rau cov ntawv thov xav tau kev pom kev nkag siab zoo sib xws 800H / 800HT,Alloy Nb-cov kabmob consumableslos yogAlloy 617 (ERNiCrCoMo-1)cov xov hlau feem ntau siv los tiv thaiv kev hla -weld kev nyuaj siab rupture nyob rau hauv - txuam.
AWS ERNiCr-3 (Filler Metal 82)thiabENiCrFe-2 (zeeg)yog lwm cov qauv kev lag luam, txawm hais tias lawv qhov kev ntxhov siab- cov yam ntxwv tawg ua rau poob qis ntawm thaj tsam sab saud ntawm lub hnab ntawv qhov kub thiab txias.
Primary Industrial Applications
Petrochemical thiab Chemical Processing
Hauv chav methane hloov pauv (SMR) cov nroj tsuag,Incoloy 800H / 800HT seamless kavua hauj lwm raws li catalyst hlab, pigtails, thiab sau headers. Ib puag ncig sib xyaw ua ke cov matrix uas tsis muaj zog heev nrog kev kub siab sab hauv, ua rau cov hlau tsis kam rau carburization thiab chav oxidation tseem ceeb.
Muaj zog tsim
Superheater thiab reheater tubing configurations nyob rau hauv niaj hnub fossil - roj thiab biomass - raug rho tawm boilers cia siab rauHlau alloy 800H. Nws cov qauv tsim siab tso cai rau kev ntxhov siab txo qhov xav tau ntawm phab ntsa tuab ntawm cov hlab, txhawb kev hloov pauv hluav taws xob.
Advanced Nuclear Zog
Nrog rau qhov nce ntawm tiam-IV siab-kub roj- cov cua txias reactors (HTGRs) thiab siab heev -kub reactors (VHTRs) siv helium coolants,Incoloy 800 HTtau dhau los ua tus neeg sib tw tseem ceeb rau cov khoom tseem ceeb hauv cov txheej txheem thiab cov cua sov- sib pauv piping systems. Lub alloy tuav cov txheej txheem rigidity, tiv thaiv helium - impurity oxidation, thiab muaj kev kwv yees tribological kev ua tau zoo nyob rau hauv siab thermal loading.
