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Long Weld Neck Flanges Manufacturer | Asme B16.5 B16.47 Nickel Alloy Flange

Long Weld Neck Flanges Manufacturer | Asme B16.5 B16.47 Nickel Alloy Flange

Specification Details
Flanges TypesLong Weld Neck
Class150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160
Size1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
TypeRaised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove

Long Weld Neck Flanges Manufacturer | ASTM A182 A105 Forged Flange

Neelkanth Stainless Steel is known as a reliable Long Weld Neck Flanges Manufacturer that offers accuracy-engineered flanges used in high-pressure vessels and piping over critical areas. Long Weld Neck Flanges are designed to have an extended tapered hub that distributes stress better and is stronger structurally in high-pressure and high-temperature systems. They are also commonly applied in petrochemical plants, refineries, offshore oil platforms, power generation plants, and pressure vessels where leakage-free performance and reliability must be upheld. Their sturdy structure reduces turbulence and enhances the efficiency of the flow, and gives it a solid welded connection. The Long Weld Neck Flanges come in different pressure classes, sizes, and material grades to suit different industrial needs.

Long Weld Neck Flanges manufactured under ASTM, ASME, ANSI, DIN, and EN are also available, all at once with exceptional dimensional accuracy, corrosion resistance, and mechanical durability. These products are usually distributed via an efficient b2b channel, which is used by EPC contractors, engineering companies, and industrial buyers globally. In industrial pipes, Flanges have become essential in not only connecting pipes, valves, pumps, and equipment, but Flanges are also easily inspected and maintained. The Long Weld Neck Flanges are widely applied in pressure vessels, heat exchangers, storage tanks, process pipelines, and offshore systems where high strength, operational safety, and long life are of great importance in the efficient performance of the plant.

Material & Grades Table – Long Weld Neck Flanges

MaterialGradeStandardOD (mm)Thickness (mm)Weight (kg/m)
Stainless SteelSS 304ASTM A18290 – 250012 – 150As per size
Stainless SteelSS 316ASTM A18290 – 250012 – 150As per size
Carbon SteelASTM A105ASME B16.590 – 250012 – 150As per size
Alloy SteelF11ASTM A18290 – 250012 – 150As per size
Alloy SteelF22ASTM A18290 – 250012 – 150As per size
Duplex SteelUNS S32205ASTM A18290 – 250012 – 150As per size
The table above points out typical materials, grades, standards, and dimensional specifications of Long Weld Neck Flanges that are used on important industrial piping systems. These flanges are designed with high strength, high-pressure handling capacity, and leak-free serviceable performance, which places them in refineries, petrochemical plants, offshore platforms, pressure vessels, heat exchangers, and high-temperature process services.



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Frequently Asked Questions

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Countries We Export

  • India


Cities We Supply

  • Ahmadnagar

  • Ahmadpur

  • Ahmedabad

  • Bangalore Rural

  • Bangalore Urban

  • Bengaluru

  • Chandigarh

  • Chennai

  • Coimbatore

  • Haridwar

  • Hyderabad

  • Jaipur

  • Jodhpur

  • Jodhpur (ahmedabad)

  • Kalyan

  • Kolhapur

  • Kolkata

  • Lucknow

  • Mumbai

  • Mumbai Suburban

  • Murud (raigad)

  • Nagpur

  • Nashik

  • Navi Mumbai

  • New Delhi

  • Pune

  • Raipur

  • Rajkot

  • Rampura

  • Sion, Mumbai

  • Surat

  • Thane

  • Varanasi

  • Visakhapatnam

  • Moradabad

  • Angul

  • Rudrapur

  • Hosdurg

  • Gandhinagar

  • Rajahmundry

  • Durgapur

  • Bharuch

  • Panipat


Industries We Serve

  • Sugar industry

    Sugar

  • Oil And Gas Industries industry

    Oil And Gas Industries

  • Paper Mill industry

    Paper Mill

  • Power Plant industry

    Power Plant

  • Bridge And Building industry

    Bridge And Building

  • Aerospace Industries industry

    Aerospace Industries

  • Automobile Industry industry

    Automobile Industry

  • Electrical Industry industry

    Electrical Industry

  • Defense Industry industry

    Defense Industry

  • Construction & Fabrications industry

    Construction & Fabrications

  • Ring Man Units industry

    Ring Man Units


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