Welding Neck Flanges Supplier

Welding neck flanges are a type of pipe fitting used in various piping applications. They are designed to provide a secure and permanent connection between two pieces of pipe, making them an essential component for many industrial processes.
Welding Neck Flanges have many uses in different industries, such as petrochemical, oil and gas, chemical processing, water treatment, and power generation plants. These pipe fittings can be used for pressure vessels or tanks that need to be sealed off at one end or require an additional connection point for other components, such as valves or other equipment. Additionally, they can connect two piping sections or serve as an anchor points for large structures such as bridges or buildings.

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The most significant benefit of Weld Neck Flanges is their ability to provide reliable connections while maintaining the proper pressure rating requirements for specific applications. Additionally, these fittings offer superior fatigue strength compared to other fittings due to their increased contact area at both ends, which helps reduce stress concentrations on each side of the joint during operation. Their simple yet effective design makes these fittings easily customized to meet specific requirements with little effort. In addition to our range of Welding Neck Flanges, we also offer a variety of SMO 254 Flanges to meet your piping needs.

Stainless Steel Welding Neck Flanges Stockist, Hastelloy C22 Flanges, Copper Nickel Welding Neck Flanges, Alloy 20 SORF Flanges, Monel Welding Neck Flanges, Inconel Welding Neck Flanges, Nickel Alloy 200 Welding Neck Flanges, Welding Neck Flange Suppliers, Flanges Welding Neck, Welding Neck Flange 600 Lbs, Aluminum Welding Neck Flange, Long Welding Neck Flange Standard, Duplex Welding Neck Flange, Welding Neck Flange Asme B16 5, Astm A694 F65 Welding Neck Flange, Alloy Welding Neck Flange, Long Welding Neck Flange Asme B16 5, Forged Steel Welding Neck Flange, Astm A105 Welding Neck Flange, SS Welding Neck Flanges Exporter in India.

Welding Neck Pipe Flanges offer superior connections for various industrial applications due to their robust construction and customizability. From high-pressure systems such as petrochemical plants to low-pressure systems like water treatment facilities, these pipe fittings provide reliable connections that can help ensure safety while reducing maintenance costs associated with frequent replacements due to leaking seals or faulty connections.

Long Welding Neck Flanges are a type of flange that boasts a long, tapered hub and a circular base. These flanges are widely used in applications that demand high pressure and temperature, such as chemical plants and refinery pipelines. They are welded to the end of pipes to create a solid and leak-proof seal, thanks to the tapered design that minimizes stress on the connection points. Welding neck flanges come in various sizes and materials, including stainless steel and carbon steel, ensuring they can meet the needs of any project. These flanges are essential in industries where safety, security, and reliable performance are top priorities. At Metcore Steel, we pride ourselves on providing excellent customer service and offering a wide range of products, including Welding Neck Flanges and Stainless Steel 904L Fasteners.

Several types of welding neck flanges are available on the market today. The most common type is the standard welding neck flange which is manufactured from forged steel and features a raised face with an external ribbing around the circumference. This type is typically used in high-pressure applications as it provides excellent strength and durability. Other types include long weld neck flanges, which have a longer tapering hub that allows for greater flexibility when connecting larger diameter pipes; blind welding neck flanges, which are used to close off or seal off a section of piping; and slip-on welding neck flanges, which feature a slightly larger bore than the outside diameter of the pipe they are connecting.


Weld neck flanges connect pipes, valves, and other equipment in high-pressure and high-temperature applications. They have a tapered hub that gradually transitions to the pipe, providing a smooth flow path & reducing turbulence.
The standard weld neck flange is designed according to ASME B16.5, which specifies the dimensions, materials, and testing requirements for flanges in various sizes and pressure ratings.
The main difference between a welding neck flange and a slip-on flange is the pipe attachment method. Welding neck flanges are welded to the pipe, while slip-on flanges slide over the pipe and are then welded in place. Weld neck flanges offer greater strength and are better suited for high-pressure applications, while slip-on flanges are easier to install & require less welding.

Welding Neck Flanges Flanges Specification

Specifications :

Dimensions :

Standard :

Size :

Class/Pressure :

Flange Face Type :

ASTM A182 / B564 / A105 / A350 / A694 / B381.

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

1/2" (15 NB) to 48" (1200NB)

150#, 300#, 800#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)



Material Types of Welding Neck Flanges Flanges

Stainless Steel Welding Neck Flanges
  • Stainless steel Welding Neck Flanges
  • SS Welding Neck Flanges
  • SS 304/304L/304H Welding Neck Flanges
  • SS 317/317L Welding Neck Flanges
  • Stainless steel 904L Welding Neck Flanges
  • ASTM A182 SS 316L Welding Neck Flanges
  • ASME SA 182 SS 316 Welding Neck Flanges
Carbon Steel Welding Neck Flanges
  • Carbon steel Welding Neck Flanges
  • ASTM A105 Carbon Steel Welding Neck Flanges
  • ASTM A350 Carbon Welding Neck Flanges
  • Carbon Steel LF2 Welding Neck Flanges
  • Carbon Steel SORFFlanges
  • Carbon Steel LF3/LF6 Welding Neck Flanges
  • ASME SA 105 CS Welding Neck Flanges
Special Alloy Welding Neck Flanges
  • High Nickel Alloy Welding Neck Flanges
  • Nickel Alloy 200 Welding Neck Flanges
  • Inconel 600 Welding Neck Flanges
  • Hastelloy Welding Neck Flanges
  • Titanium Welding Neck Flanges
  • ASTM B564 Cupro Nickel Welding Neck Flanges
  • Alloy 20 Welding Neck Flanges
Alloy Steel Welding Neck Flanges
  • Alloy Steel Welding Neck Flanges
  • Alloy A182 F5 Welding Neck Flanges
  • Chrome Moly Welding Neck Flanges
  • Alloy Steel F9/F11/F12 Welding Neck Flanges
  • Alloy Steel F91 Welding Neck Flanges
  • ASTM A182 AS Welding Neck Flanges
  • ASME SA 182 CrMo Welding Neck Flanges

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