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Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange
Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange

Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange

The Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange is a titanium-stabilized fully austenitic nickel-iron-chromium alloy. It is specifically engineered to provide exceptional resistance to both reducing and oxidizing environments, such as sulfuric and phosphoric acids. The addition of molybdenum and copper gives it superb resistance to pitting and crevice corrosion.

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    • Commodity name: Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange

    The Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange is a titanium-stabilized fully austenitic nickel-iron-chromium alloy. It is specifically engineered to provide exceptional resistance to both reducing and oxidizing environments, such as sulfuric and phosphoric acids. The addition of molybdenum and copper gives it superb resistance to pitting and crevice corrosion.

    Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange Description

    Application Industries

    Sour Gas (H2S) ProcessingSulfuric Acid ProductionPhosphoric Acid ProcessingNuclear Fuel ReprocessingChemical Processing Equipment
    Offshore Oil & Gas PlatformsPollution Control (FGD)Marine Heat ExchangersPickling OperationsWaste Processing Plants

    Product Parameters

    ParameterDetails
    Product NameIncoloy 825 (UNS N08825) Ring Type Joint Flange
    TypeFlange, Ring Type Joint (RTJ)
    Size1/2" - 48" (DN15 - DN1200) (Customizable)
    Pressure ClassClass 150 - Class 2500 (PN16 - PN420), API 6A 2000 - 15000 PSI
    StandardASME/ANSI B16.5, ASME B16.47, EN 1092-1, API 6A, DIN, etc.
    SurfaceCNC Machined Finish, Anti-rust Oil, Transparent Paint, etc.
    Scope of ApplicationWidely used in sour gas extraction, chemical processing, offshore platforms, pollution control, acid production, heavy equipment, etc.
    CertificateISO, PED 97/23/EC, MTR (EN 10204 3.1), BV, SGS, DNV, GL, LR, ABS, etc.
    Production TechnologyForging, CNC Machining
    Flange Face (Edge)Ring Type Joint (RTJ)


    Equivalent Grades

    UNSASTM / ASMEEN / DINAFNORCommon Trade Name
    UNS N08825ASTM B564 / ASME SB5642.4858Z8NC38-21Incoloy 825, Alloy 825


     Chemical Composition (%)

    NiFeCrMoCuTiC (Max)Mn (Max)Si (Max)S (Max)
    38.0 - 46.0≥ 22.019.5 - 23.52.5 - 3.51.5 - 3.00.6 - 1.20.051.000.500.03


    Mechanical Properties

    Tensile Strength (Rm)Yield Strength (Rp0.2)Elongation (A5)Hardness (Brinell)
    ≥ 586 MPa (85,000 psi)≥ 241 MPa (35,000 psi)≥ 30%≤ 150 HB


    Physical Properties (at 20°C)

    DensityMelting PointThermal ConductivitySpecific Heat CapacityModulus of Elasticity
    8.14 g/cm³ (0.294 lb/in³)1370°C - 1400°C11.1 W/(m·K)440 J/(kg·K)


  • Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange - Stock Warehouse

     

  • Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange - Product Inspection

     

  • Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange - Product Measurement

     

  • Incoloy 825 (UNS N08825) Ring Type Joint (RTJ) Flange- Product Packaging

     

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