Weld Neck Flanges

Weld Neck Flanges Manufacturer

ASTM A182 Stainless Steel Weld Neck Flanges, SS Weld Neck Flanges, Stainless Steel Weld Neck Flanges, Carbon Steel Weld Neck Flanges, ANSI B16.5 Weld Neck Flanges, Weld Neck Flanges, SS Weld Neck Flanges, ANSI B16.5 SS Weld Neck Flanges Supplier in Mumbai, India.

Inconel Weld Neck Flanges, Nickel Alloy 200 Weld Neck Flanges, Hastelloy C22 Flanges, Stainless Steel 180° Weld Neck Flanges Stockist, ASME SA 182 SS Weld Neck Flanges, Copper Nickel Weld Neck Flanges, Alloy 20 Flanges, Monel Weld Neck Flanges, SS Weld Neck Flanges Exporter in India.

Simplex Fittings is well-known manufacture, supplier, distributor and stockist of Weld Neck flanges in a wide range of materials such as Stainless Steel, Duplex & Super Duplex Steel, Carbon Steel, Inconel, Monel, Hastelloy, Nickel Alloy, Alloy Steel, etc. We manufacture these weld neck flanges using superior quality of raw materials and modern technology under the strict guidance of our professionals. Welded flanges at the neck of the flange are welded directly to the pipe. The neck of the flange has a beveled end, which provides a trough for a strong weld when connected to a pipe. This flange is suitable for application at high pressure. These flanges are also known as Butt Weld Flanges.

Super Duplex Weld Neck Flanges is particularly well suited for use in environments such as warm chlorinated seawater and acidic, chloride containing media. Hastelloy Weld Neck Flanges is the most widely used and versatile flange and has corrosion resistance, good resistance to reducing, and mildly oxidizing corrosives, excellent stress corrosion cracking resistance with very good resistance to localized attack. Incoloy weld neck flanges are used for applications that require stable structure and good strength during prolonged exposure to high temperatures. Inconel Weld Neck Flanges are used in mild environments, such as the atmosphere, seawater, neutral salts, and alkaline media, etc. Monel weld neck flanges exhibit high strength and excellent corrosion resistance in a range of media including seawater, hydrofluoric acid, sulfuric acid, and alkalies. Titanium Weld Neck Flanges are used in seawater as they are resistant to high velocity in rapidly moving currents as well as stagnant seawater, not affected by the presence of sulfides in seawater, seawater resistant to temperatures as high as 500 degrees F (260 degrees C).

We Supply all these weld neck flanges in various materials, grades, specifications, pressure class, types, etc. and also as per the requirements of our customers to fulfill their various application needs at the most reasonable prices.We have skilled staff to maintain the quality of products throughout the manufacturing process from the selection of raw material to processing, marking, packaging, storage, and transportation.

Value Added Services

  • Sand Blasting
  • Electro Polish
  • Epoxy Coating


  • High tensile strength
  • Good load bearing capacity
  • Excellent versatility and weldability


  • Hardness Test
  • Tensile Test
  • Intergranular Corrosion Test

ASTM A182 Stainless Steel Weld Neck Flanges Stock

Stainless Steel Weld Neck Flanges
  • Stainless Steel Weld Neck Flanges

Carbon Steel Weld Neck Flanges
  • Carbon Steel Weld Neck Flanges

Alloy Steel Weld Neck Flanges
  • Alloy Steel Weld Neck Flanges

High Nickel Alloy Weld Neck Flanges
  • High Nickel Alloy Weld Neck Flanges

ASME B16.5 Weld Neck Flanges Specification

Standards ASTM A182 / B564 / A105 / A350 / A694 / B381.
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size 1/2" (15 NB) to 48" (1200NB)
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ).
Class/Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Also as per National & International Standard &Specification

Weld Neck Flanges Material Type

Stainless Steel : ASTM A182 WP 304, 304L, 304H, 310s, 316, 316L, 316H, 316Ti, 317/317L, 321/321H, 347/347H, 904L, 446 etc.

Carbon Steel : ASTM A105, LF2, IS 2062, F42, F46, F52, F60, F65, F70.

Alloy Steel : ASTM A182 F1, F5, F9, F11, F12, F22, F91.

High Nickel Alloy : 200, 201, 400, K500, 600, 601, 625, 718, 800, 825, C22, C276, B2, X.

Other Types of ANSI B16.5 Weld Neck Flanges

  • Stainless Steel 304 / 304L Weld Neck Flanges
  • SS 310 / 310S Weld Neck Flanges
  • Stainless Steel 316 / 316L Weld Neck Flanges
  • Stainless Steel 321 / 321H Weld Neck Flanges
  • SS 347 Weld Neck Flanges
  • Monel 400 Weld Neck Flanges
  • Cu-Ni 70/30 (C71500) Weld Neck Flanges
  • Duplex Steel WNRF Flanges
  • Duplex Steel UNS S31803 WNRF Flanges
  • Duplex Steel UNS S32205 WNRF Flanges
  • Super Duplex UNS S32750 WNRF Flanges
  • Super Duplex UNS S32950 WNRF Flanges
  • Hastelloy C276 WNRF Flanges
  • Cu-Ni 90/10 (C70600) WNRF Flanges
Application Industry

We have huge experience of supplying to all major industries across the world. These Buttweld Pipe Elbow is use in various industries like : Petrochemical, Pulp And Paper Co, Oil and Gas, Chemical Industry, Food Processing Industry, Plumbing, Water Supply Systems, Power Plant, General Purpose Applications, Fabrication Industry etc

Central/South America, North America, Asia, Mid East/Africa, Eastern Europe, UAE

Sri Lanka, Bahrain, Russia, Egypt, Portugal, Turkey, Spain, Singapore, Brazil, Thailand, Chile, Malaysia, Venezuela, Indonesia, Costa Rica, Poland, USA, U.A.E, Italy, Oman, Canada, Saudi Arabia, Angola, Qatar