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    • A105 Class 150 Forged Steel Weld Neck Flange - China

    price: 10.00 Dollar US$

    A105 Class 150 Forged Steel Weld Neck Flange

    Products Photos Catalog A105 Class 150 Forged Photos Catalog

    Weld Neck Flange Product Features: Dimensions: 1/2”, 2”, 3”, 4”, 6”, 8”, 10”, up to 24” or custom.

    Class range: Class 150 to 2500(# or LB).

    PN 2.5 to PN 250.

    Flange face type: flat face, raised face

    Material: carbon steel, stainless steel, alloy steel

    Standard: ASTM A105, ANSI/ASME B16.5, EN 1092, GOST33259, BS, DIN, SABS, and more.

    Surface Treatment: anti-rust oil, black painting, yellow painting Dimensions and Sizes

    Weld neck flanges come in various sizes to fit pipes of different diameters.

    Common dimensions for weld neck flanges under ASME B16.5 (Class 150) include: 1/2″ NPS with an inside diameter of 0.62″ and an outside diameter of 3.50″.

    3/4″ NPS with an inside diameter of 0.82″ and an outside diameter of 3.88″.

    1″ NPS with an inside diameter of 1.05″ and an outside diameter of 4.25″.

    2″ NPS with an inside diameter of 2.07″ and an outside diameter of 6.00″.

    5″ NPS with an inside diameter of 5.05″ and an outside diameter of 10.00″.

    6″ NPS with an inside diameter of 6.065″ and an outside diameter of 11.00″.

    10″ NPS with an inside diameter of 10.02″ and an outside diameter of 16.00″.

    20″ NPS with an inside diameter of 19.25″ and an outside diameter of 27.50″.

    24″ NPS with an inside diameter of 23.25″ and an outside diameter of 32.00″.

    Custom sizing options are also available for larger outer diameters up to 60″.


    Company Contact:


    • Phone: 86-18032153916

    • Address: Wuliyao Industry Zone, Yanshan County, , Cangzhou , Hebei , China

    • Email: Email


    Published date: March 26, 2026

    • Business Description: We are committed to providing quality products and services at competitive prices, including but not limited to steel pipe flange,buttweld elbow,butt weld tee,pipe Reducers and steel pipe .

      We have earned ISO9001: 2015, CE, GOST-R, and passed Pressure Equipment Directive (PED) certification.

      All this comes with exemplary customer service and a comprehensive warranty that guarantees your satisfaction.

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