McMaster-Carr logo
    Filter by
    DN Size
    Pipe Size
    Industrial Info Snippet
    Fitting Type
    Industrial Info Snippet
    Fitting Connection
    Industrial Info Compare
    Number of Bolt Holes
    Bolt Hole Diameter
    Attribute Image
    Bolt Circle Diameter
    Attribute Image
    Specifications Met
    Bolt Diameter
    Maximum Steam Pressure @ Temperature
    Flanged Connection Surface
    Fabrication
    Flange Construction
    Maximum Pressure @ Temperature
    Industrial Info Snippet
    Pressure Rating
    Threading
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    1 Product
    About Pipe and Fittings
    industrial info icon

    Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

    Low-Pressure Stainless Steel Unthreaded Pipe Flanges

    Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line.
    Forged Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Flanges, Slip-On Weld Female, Raised Surface.

    Front

    Forged flanges have better strength than cast flanges.
    Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
    304/304L Stainless Steel—Flanges hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    Pipe
    Size
    Bolt
    Hole
    304/304L
    Stainless Steel
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD, mm
    For Bolt
    Dia., mm
    Dia.,
    mm
    No.
    Of
    Bolt Circle
    Dia., mm
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Slip-On Weld Female
    6
    6
    Raised28520228240230 psi @ 72° F125 psi @ 300° F1442N150000000
    Low-Pressure 304/304L Stainless Steel Unthreaded Pipe Flange, Metric Slip-on Weld, 6 Pipe Size
    EachIn stock
     
    back to top