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Jaiman Metalloys LLP

We are a trusted supplier of high-quality aluminium and metal products, offering precision-manufactured materials, consistent quality, and dependable delivery for industrial, engineering, and fabrication needs.

Weld Neck Flanges

ASME/ANSI B16.5 WELD NECK (WN) PIPE FLANGES MANUFACTURER IN INDIA
MANUFACTURER/EXPORTER OF HIGH QUALITY WELD NECK FORGED FLANGES
CARBON, ALLOY, STAINLESS STEEL WELD NECK FLANGES

  • Jaiman Industries is a leading Indian manufacturer of weld neck flanges conforming to ASME, ANSI, and DIN standards. We maintain ready stock and ensure fast delivery of carbon steel and stainless steel weld neck flanges in standard sizes.
  • Weld neck flanges are welded directly to the pipe through a tapered hub, allowing uniform stress distribution and excellent performance in high-pressure and extreme temperature applications. The precisely machined bore ensures smooth flow and reliable operation.
  • Our weld neck flanges are widely supplied to industries such as oil & gas, petrochemical, power generation, shipbuilding, wastewater treatment, pharmaceuticals, and turnkey engineering projects worldwide.
  • Welding Neck Flange, WN Forged Flanges, Weld Neck Flanges Production Range

    Stainless Steel Weld Neck (WN) Flange

    Stainless Steel Weld Neck (WN) Flange

    Alloy Steel, Carbon Steel Weld Neck (WN) Flange

    Alloy Steel, Carbon Steel Weld Neck (WN) Flange

    1-Weld Neck Flange | 2-Butt Weld | 3-Pipe or Fitting

    1-Weld Neck Flange | 2-Butt Weld | 3-Pipe or Fitting

    Size 1/2″ (15 NB) to 48″ (1200 NB)
    Standards ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
    Pressure Ratings Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500
    PN6, PN10, PN16, PN25, PN40, PN64
    Carbon Steel Weld Neck Flanges ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2,
    A694 F42, F46, F48, F50, F52, F56, F60, F65, F70,
    A516 Gr.60, 65, 70, RST37.2, C22.8
    Stainless Steel Weld Neck Flanges ASTM A182 F202, F304 / 304L / 304H,
    F316 / 316L / 316H / 316Ti,
    F310, F321, F904L
    Alloy Steel Weld Neck Flanges ASTM A182 F1, F5, F9, F11, F22, F91
    Special Alloy Weld Neck Flanges Duplex, Super Duplex, Nickel Alloys
    Flange Face Type Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
    Coating / Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent,
    Zinc Plated, Cold & Hot Dip Galvanized
    Value Added Services CNC Machining, Customised Flanges

    Marking and Packing :

    All products are carefully packed using secure and industry-standard packaging methods to ensure complete protection during storage and transportation. For export consignments, robust wooden case packaging is used in compliance with international shipping standards. Each item is permanently marked with material grade, heat or lot number, size, specification, and our registered trademark to ensure full traceability. Custom marking and special packaging options are available on request.

    Quality Assurance :

    Quality is ensured through strict inspection at every stage of the manufacturing process, from raw material sourcing to final dispatch. All products are checked for compliance with international standards such as ASTM, ASME, MSS, DIN, EN, and JIS. Third-party inspection agencies can be arranged on request to verify material test reports, dimensions, and overall quality conformity.

    Test Certificates :

    Comprehensive test certification is provided to ensure full material traceability and quality assurance. Manufacturer Test Certificates in accordance with EN 10204 / 3.1 are supplied along with raw material certificates. Additional documentation such as 100% radiography test reports and third-party inspection reports are available on request to meet project and customer requirements.