Inconel 625 (Alliage de Nickel 625 / UNS N06625) Corrosion ya makasi-Corosion ya makasi-Tuyau mpe tube oyo ekoki koboya - BLOG

Profil ya Alliage na Role Industrielle

Inconel 625, oyo eyebani mpe lokola Alliage ya Nickel 625 to UNS N06625, ezali alliage ya nickel-chrome-molybdène-niobium oyo esalemi na solide-solution–renforcée oyo esalemi mpo na misala esika oyo ba extrêmes ya corrosion mpe ya température ezali esika moko. Ezali kobatela makasi ya kokamwa, résistance na creep, mpe stabilité ya oxydation kobanda na ba conditions cryogéniques kino na 1000 degrés (1832 degrés F).
Grade oyo esalelamaka mingi na bisaleli ya mayi, ba systèmes ya traitement chimique, ba unité ya contrôle ya pollution, ba réacteurs nucléaires, pe ba ensembles ya échappement ya moteur à jet-applications esika intégrité structurelle pe contrôle ya corrosion esengeli esala en parallèle. Equilibre na yango ya Ni-Cr-Mo-Nb esala film ya oxyde oyo ezo bikisa yango moko pe ezo supprimer attaque localisé ata na ba conditions acides na chlorure-richie.

alloy 625 seamless pipe astm b444 asme sb444 stock - octal pipe inconel 625 pipe ends close up showing wall thickness and surface finish - octal pipe

Conception chimique na ba caractéristiques métallurgiques

Eloko	% Mingi	Mosala
Nickel (Ni) ya .	Monene koleka to ekokani na 58,0	Matrice ya base; corrosion mpe stabilité thermique
Chrome (Cr) ya .	20.0–23.0	Esalaka oxyde passif pona contrôle ya oxydation
Molibdène (Mo) ya .	8.0–10.0	Ezali kotelemela corrosion ya pitting mpe ya crevice
Niobium (Cb + Ta) ezali .	3.15–4.15	Elendisaka solution ya makasi; epekisaka déformation ya creep
Ebende (Fe) .	Na nse to ekokani na 5.0	Abongisaka bizaleli ya fabrication
Carbone (C) 1.1.	Na nse to ekokani na 0,10	Ezali ko contrôler formation ya carbure
Mn / Si / S	Moke to ekokani na 0,5 / 0,5 / 0,015	Batela bopeto mpe qualité ya soudure

Effet combiné ya molybdène na niobium ebimisaka makasi ya likolo sans durcissement ya ba précipitations, ko permettre fabrication facile pe performance stable na tango ya exposition thermique ya tango molayi-. Microstructure oyo ebatelaka ba grains ya mike mike mpe epekisaka ba grains-frébillement ya ndelo sima ya soudure to recuit.

Fiabilité Mécanique na se ya Température na Stress

Lopango	Métrique (min) 1.1.	Impérial (min) ya .	Ndimbola
Bokasi ya kokangama	827 MPa	120 ksi	Abatelaka bosembo na 870 degrés
Bokasi ya mbuma (0,2 %) .	414 MPa	60 ksi	Ezali kotelemela déformation na se ya charge
Elongation ya nzoto	Monene koleka to ekokani na 30 % .	Monene koleka to ekokani na 30 % .	Excellente ductilité post-exposition
Bokasi ya makasi	Na nse to ekokani na 95 HRB	Na nse to ekokani na 95 HRB	Epesaka machinability mpe formability

Na ba conditions ya service cyclique, Inconel 625 e garder force ya fatigue na stabilité dimensionnelle na perte négligeable na contrôle ya oxydation.

Processus ya fabrication na traitement ya chaleur

Ba tuyaux mpe ba tubes esalemaka na nzela ya extrusion ya moto to dessin froid mpe na sima solution recuit na 1090–1150 degrés (1995–2100 degrés F) elandi na extinction rapide mpo na kozongisa résistance na corrosion. Ba types soudés esalemaka na TIG to procédé plasmatique sous blindage ya gaz inerte.
Formation ya précision mpe taille ya malili ebatelaka uniformité ya mur, alors que pickling mpe recuit ya kongenga e réactiver film ya surface ya Cr2O3 oyo ebatelaka. Bokeli mpe botali etosakaASTM B444, B705, mpe B704mibeko oyo esɛngami.

Résistance na Corrosion na kati ya Media

Alliage double action-nickel-film ya oxyde de chrome mpo na ba conditions oxydantes mpe renforcement ya molybdène-niobium mpo na kokitisa ba environnements-epesi yango stabilité chimique ya monene:

Mai ya mbu mpe ba chlorures:Ezali kotelemela pitting, crevice, mpe stress-corrosion cracking.
Ba acides oxydant (nitriques, chromiques): .Chrome ebatelaka adherence ya oxyde na température.
Ba acides réducteurs (chlorhydrique, phosphorique): .Molybdène epekisaka attaque localisée.
Gaz ya acide (H2S): .Stable contre fissure ya stress ya sulfure pona service ya pétrole na gaz.
Oxydation ya température ya likolo-:Résistant na écaille mpe na perte ya métal na 1000 degrés .

Dimensionnel Range na Fourniture ya Produit

Lolenge	Diamètre ya libanda	Épaisseur ya Mur	Bolai	Spécification ya makambo
Tubo sans soudure	6–610 mm	1–50 mm	Kino na 12 m	ASTM B444 / ASME SB444. Ezali na ntina mingi
Tuyau Soudée	25–1200 mm	1,5–60 mm	Kino na 12 m	ASTM B705 / ASME SB705. Ezali na ntina mingi
Tube (Echangeur de chaleur / Instrument) .	6–76 mm	0,8–10 mm	Bobine / Semba	ASTM B704 / ASME SB704. Ezali na ntina mingi

Finition ya tolerance serrée- ezali mpo na instrumentation mpe ba assemblages ya échangeur ya chaleur-oyo esengaka ajustement précis mpe finition ya surface.

Komeka, kopesa mokanda ya kondimama, mpe kondimisa lolenge ya malamu

Ba produits nionso ba testaka parASTM B829 oyo ezali na katimpo na bosolo ya kobebisa te mpe bosikisiki ya dimension.
Ba inspections routinières ezali examen hydrostatique to ultrasonique, vérification ya PMI pona contenus ya nickel, pe test ya corrosion intergranulaire (ASTM G28 Méthode A/C).
Octal Pipe epesaka ba matériaux naEN 10204 3.1 / 3,2 MTC, bolandi mobimba, mpe banzela ya botali ya bato ya misato-(BV, SGS, TUV).

Bosaleli ya ba industries pe lisungi ya misala

Inconel 625 esalaka na ba infrastructures ya tina oyo esangisi ba pipelines ya mayi na ba saline ya chlorure, ba composants ya échappement aérospatiale, ba bateaux ya retraitement nucléaire, ba usines ya désalination, pe ba scrubbers ya contrôle ya pollution.
Octal Pipe epesaka ba solutions ya fourniture ingénierie na qualification ya soudure, coordination ya NDE, na documentation technique oyo ebongisami pona ba projets ya EPC na énergie. Contrôle ya processus constant e assure performance mécanique na corrosion repetible na lote nionso ya chaleur.

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Mituna oyo batunaka mingi

Q1: Norme nini nasengeli ko préciser pona Alloy 625 pipe vs tube?

A1:Salelá ASTM/ASMEB444/SB444 oyo ezali na katimpo na pipe/tube sans soudure, .B705/SB705 oyo ezali na katimpo na pipe soudée, mpeB704/SB704 oyo ezali na katimpo na kosala ba tubes.

Q2: UNS N06625 (Alliage 625) ekoki kosalelama na service aigre (H2S)?

A2:Ee-ntango ekokisi masengi ya mosala ya acide-ya projet, bakisa mpe ndelo ya ezalela ya bibende mpe ya makasi oyo elakisami.

Q3: Nini esengeli nasenga pona ko vérifier qualité ya Inconel 625 avant ya kosomba?

A3:Senga 3.1/3.2 MTC na traçabilité ya chaleur, PMI, NDE (UT/hydro ndenge elakisami), pe test nionso ya corrosion oyo esengeli (ndakisa, G28) bakisa ba dossiers ya traitement ya chaleur-.