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Nov 04, 2025 Leka obubaka .

Incoloy 825 (Nickel Alloy 825 / UNS N08825) Okukulukuta-Payipu ne Tubu ya Nickel Alloy Ezigumira

Enyanjula: Advanced Alloy for Harsh Chemical Environments

 

Incoloy 825. Omuwandiisi w’ebitabo, era emanyiddwa ngaOmubisi gwa Nickel 825obaUNS nnamba nnamba 08825, ye nkola ya waggulu-ekirungo kya nickel–ekyuma–chromiumenhanced nemolibdenum, ekikomo, ne titanium.
Ekoleddwa mu ngeri ey’enjawulo okukola wansiembeera za asidi, klorayidi, n’ez’ebbugumu eringi-ezivunda, ekigifuula ekimu ku bintu ebisinga okukozesebwa mu nkola z’eddagala, eddagala ly’amafuta, n’enkola z’omu nnyanja.

Alloy eyoleka omugatte gw’ebintu ebitali bimu:

  • Okuziyiza okulungi ennyo eriokukendeeza n’okufuula asidi oxidizing(nga mw’otwalidde ne asidi wa sulphuric ne phosphoric).
  • Okutebenkera kwa waggulu okulwanyisaebinnya, okukulukuta kw’enjatika, n’okukutuka kw’okukulukuta okw’okunyigirizibwa-.
  • Omutindo ogw'enjawulo oluvannyumawelding oba okumala ebbanga eddeneku bbugumu eriri waggulu.

Obwesigwa bwayo bufudde Alloy 825 ekintu ekisinga okwettanirwaebyuma ebiwanyisiganya ebbugumu, ebikondeesa, ebifuumuuka, ne payipu eziri ku nnyanja, nga okukulukuta n’obukoowu bw’ebyuma bibeera wamu.

 

incoloy 825 nickel alloy 825 uns n08825 pipe and tube overview - octal pipe astm b423 asme sb423 incoloy 825 seamless pipe and tube stock - octal pipe

 

Ebitonde by’Eddagala n’Okutebenkera kw’Ensengekera

 

Omulimu gwa Alloy 825 gusibuka mu butonde bwayo obutebenkedde obulungi:

Ekintu Okwesiima (%) Omulimu gw’Ebyuma
Nickel (Ni) nga . 38.0 – 46.0 Okuziyiza okukulukuta, okutebenkera kw’enzimba
Chromium (Cr) nga . 19.5 – 23.5 Okuziyiza oxidation, okutondebwa kwa firimu ezitakola
Ekyuma (Fe) . Balansi Structural matrix olw’obugumu
Molibdenimu (Mo) . 2.5 – 3.5 Okuziyiza okukendeeza ku mikutu n’ebinnya
Ekikomo (Cu) . 1.5 – 3.0 Alongoosa okuziyiza asidi za sulphuric ne phosphoric
Titaniyamu (Ti) . 0.6 – 1.2 Atebenkera ku kukulukuta kw’obutundutundu (intergranular corrosion).
Mn, Si, C, S, era nga bano Ekitono oba ekyenkana 1.0 / 0.5 / 0.05 / 0.03 Kuuma obuyonjo n’okukola obulungi

Omuokutebenkeza titaniumokukakasa okuziyiza okuwunyiriza n’okulumba wakati w’obutundutundu oluvannyuma lw’okuweta oba okulaga embeera z’obuweereza eza diguli 540–870.

 

Enkola y’okukola n’okulongoosa mu bbugumu

 

Payipu ne ttanka za Incoloy 825 zikolebwa nga ziyita mu...precision-fugibwa okusaanuuka, okukola, n'okusengejja ekisengejjerookukakasa microstructure emu n’enneeyisa y’okukulukuta ey’oku ntikko.

Enkola y’okufulumya okutwalira awamu

  • Okusaanuuka mu Vacuum oba Argon– Eggyawo obucaafu n’okuziyiza okwawukana mu kiseera ky’okukola alloying.
  • Hot Extrusion / Okukuba ekifaananyi ekinyogovu– Akakasa okufuga okunywevu okw’ebipimo n’okukwatagana.
  • Okuweta mu ngeri ey’obwengula mu ngeri ey’obwengula(for welded types) – Efulumya emisono emirungi, egiyingidde mu bujjuvu.
  • Okusiimuula mu solution (940–980℃) .– Asaanuusa carbides n’okuzzaawo ductility.
  • Okuzikiza Empewo oba Amazzi mu Mangu– Eziyiza okuddamu-enkuba n’okunyigirizibwa okusigaddewo.
  • Pickling ne Passivation– Ezzaawo firimu ya chromium-rich oxide ku ngulu.
  • Okugezesa NDT n’amazzi okusembayo– Akakasa obulungi obw’omunda n’obulungi bwa weld.

Buli kibinja ky’okufulumya kikwatagana neASTM B423 / B705 / ASME SB423era n’ayita muokugezesebwa okw’amaloboozi amangi, eddy current, ne hydrostaticnga bwe kiri mu ASTM B829.
Ensengekera entonotono (microstructure) evuddemu ye amatrix ya austenitic eya kimunga zirina okusaasaana okulungi okwa carbides ne intermetallic phases, nga ziwa obutebenkevu obw’ekika ekya waggulu mu mpeereza ya asidi.

 

Okuziyiza okukulukuta n’enneeyisa y’okuweereza

 

Alloy 825 ekoleddwa okusobola okugumira embeera ez’enjawulo ez’amakolero ezivunda:

Obuwangaaliro Enneeyisa y’okuziyiza okukulukuta
Asidi za Sulfuric, Phosphoric, Nitric Omulimu ogw’enjawulo mu mbeera zombi ez’okwokya n’okukendeeza
Amazzi g’ennyanja ne Chloride Solutions Okuziyiza okw’amaanyi eri ebinnya, enjatika, n’okunyigirizibwa-okukutuka kw’okukulukuta
Gaasi omukaawa / H2S Nickel ne molybdenum biziyiza okwatika kwa sulfide stress
Embeera z’Asidi ezitabuddwa Ekikomo ne molibdenum byongera okuziyiza asidi ezikendeeza
Post-Okubikkulwa kwa Weld Titanium aziyiza okulumba wakati w’obutundutundu oluvannyuma lw’enzirukanya y’okuweta

Alloy ekola aself-okuwonya oluwuzi lwa okisayidi, okukakasa obukuumi obw’ekiseera ekiwanvu-ne bwe kiba nga kimaze okunyiga mu byuma oba okubikkulwa mu ngeri ey’enzirukanya.
Kino kifuula Alloy 825 ennungi eri...yuniti ezikwata asidi-, layini ezinyogoza amazzi g’ennyanja, enkola ezifuga obucaafu, n’ebyuma ebikola eddagala.

 

Enkola y’Ebyuma n’Ebipimo

 

 

Eby'obwa nannyini Metric Obwakabaka Okunnyonnyola
Amaanyi g’okusika Okusinga oba okwenkana 550 MPa Okusinga oba okwenkana 80 ksi Ayimirizaawo puleesa ey’omunda ey’amaanyi
Amaanyi g’amakungula (0.2%) . Okusinga oba okwenkana 220 MPa Okusinga oba okwenkana 32 ksi Akuuma ekikula wansi w’okunyigirizibwa
Okuwanvuwa Okusinga oba okwenkana 30 % . Okusinga oba okwenkana 30 % . Akakasa ductility n’obusobozi bw’okukola
Obukaluba Entono oba yenkana 90 HRB Entono oba yenkana 90 HRB Akuuma obusobozi bw’ekyuma n’obugumu

Obuwanvu bw’ebipimo

  • Payipu ezitaliiko mugo: 6 – 610 mm OD, 1 – 50 mm WT
  • Payipu eziweddwa: mm 25 – 1200 OD, mm 1.5 – 60 WT
  • Tubu (Ebikozesebwa / Ekiwanyisiganya ebbugumu): 6 – 76 mm OD, 0.8 – 10 mm WT
  • Obuwanvu: Okutuuka ku mita 12, mu SRL / DRL / sayizi ez’enjawulo

 

Okugezesa, Okukakasa, n’Okulondoola Omutindo

 

Buli payipu ne ttanka biyita mu pulogulaamu ya QA enzijuvu nga tebinnasindikibwa:

  • Okugezesebwa kw’amasannyalaze agava mu mazzi / Eddy (ASTM B829) .
  • Okukebera mu maaso n’ebipimo
  • PMI (Okuzuula Ebintu ebirungi) .
  • Okugezesa okukulukuta wakati w’ebikuta (ASTM G28 Enkola A) .
  • Okukebera kw'ekibiina eky'okusatu-Okusalawo (SGS, TUV, BV)

Ebintu byonna biweebwa ne...EN 10204 3.1 / 3.2 MTC, okulondoola okujjuvu, n'ebiwandiiko eby'omutindo gwa ISO 9001.

 

Okukozesa mu makolero

 

Obumanyirivu bwa Alloy 825 busobozesa okukozesebwa mu bitundu by’amakolero eby’enjawulo:

  • Ebimera by’Eddagala n’Ebigimusa– Okufuumuuka kwa asidi, eminara gy’okuddamu, ebisiimuula
  • Enkola z’amafuta ne ggaasi ku nnyanja– Okunyogoza amazzi g’ennyanja, okuva-empiso y’amazzi
  • Ebiwanyisiganya ebbugumu ne Condenser– Zooni ezikulukuta ennyo mu makolero agalongoosa n’amabibiro g’amasannyalaze
  • Enkola z’okulwanyisa obucaafu– Okuggya ekibiriiti mu ggaasi ya flue, ebitundu ebizzaawo asidi
  • Yinginiya w’ebyennyanja– Loopu ezinyogoza n’emidumu gy’okuggya omunnyo

Okugatta kwayo kwa...okugumira okukulukuta, okuweta, n’okunyweza ebbugumuokukakasa empeereza eyesigika mu mbeera ezivunda ennyo oba ezitabuliddwamu eddagala.

 

Okwesigamizibwa kw’ebintu n’Obuwagizi bwa Pulojekiti

 

Octal Pipe egabaIncoloy 825 / Omubisi gwa Nickel 825 / UNS N08825payipu ne ttanka okuyita mu makubo agakakasibwa okukola, ebiwandiiko ebijjuvu, n’okugoberera pulojekiti z’ensi yonna.
Buli kibinja ky’ebbugumu kilondoolebwa, kigezesebwa, era kituusibwa ne dossiers ez’okukebera ezisaanira...Pulojekiti za EPC n’ebisaanyizo by’amakolero agalongoosa.

Nga balina enkolagana ey’ekiseera ekiwanvu-n’obumanyirivu mu by’okutambuza ebintu, Octal Pipe ekakasa okutuusa obutakyukakyuka n’obuyambi obw’ekikugu ku...okukozesa eddagala, ennyanja, n’ebbugumu eringi-mu nsi yonna.

Tuukirira kati

Ebibuuzo ebibuuzibwa

 

 

info-470-408

Q1: Mutindo ki gwe nsaanidde okulambika ku payipu ne ttanka ya Incoloy 825 (UNS N08825) ezitaliiko musonno?

A1:ASTM B423 / ASME SB423.

Q2: Omutindo ki ogutera okukozesebwa ku payipu ya UNS N08825 eriko welded?

A2:ASTM B705 mu mbeera ya annealed.

Q3: Butonde ki Incoloy 825 bw’esinga okukwatagana?

A3:Empeereza ya sulphuric/phosphoric/nitric acid, amazzi g’ennyanja/chlorides, n’emigga gy’eddagala eritabuddwamu erikosa.

Q4: Mbeera ki ey’okulongoosa ebbugumu-etera okwetaagisa ku payipu/ttanka ya Incoloy 825?

A4:Solution annealed, nga erina ebiwandiiko by'obujjanjabi obw'ebbugumu-n'okulondoola mu bujjuvu.
Ebiwandiiko ebikakasa

 

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