Ferrobend manufactures and supplies premium quality Raised Face Weld Neck Flanges (RF) designed to provide secure, leak-proof, and reliable connections in demanding industrial piping systems. Combining a long tapered hub with a raised gasket seating surface, RF Weld Neck Flanges are engineered for excellent stress distribution, reliable sealing, dimensional accuracy, mechanical strength, and long-term performance across high-pressure and high-temperature applications in oil & gas, petrochemical, chemical processing, and power generation industries worldwide.
A Raised Face Weld Neck Flange (RF WN Flange) is a high-strength forged pipe flange designed for high-pressure and high-temperature piping systems. It features a long tapered hub that is butt-welded directly to the pipe, providing smooth stress distribution between the flange and pipe while improving fatigue resistance and structural integrity.
The raised face (RF) provides an elevated gasket seating surface that concentrates bolt load over the gasket area to create a reliable pressure-tight connection. Due to its robust design, Raised Face Weld Neck Flanges are widely used in critical service applications, including oil & gas, petrochemical, chemical processing, and power generation systems.
The long tapered hub provides a gradual transition between the flange and pipe, helping reduce stress concentration and improve fatigue resistance.
The raised face gasket surface concentrates bolt load over the gasket area to support a dependable, leak-resistant connection when properly assembled.
The full-penetration butt weld provides a permanent connection between the flange and pipe for demanding service conditions.
Available in various pressure classes and material grades for demanding oil & gas, petrochemical, chemical processing, and power generation applications.
Robust forged construction provides high mechanical strength, while the selected alloy or stainless steel material determines corrosion resistance for the intended service.
Raised Face Weld Neck Flanges are preferred for demanding industrial piping systems because their tapered hub and butt-welded connection provide excellent structural strength, stress distribution, and long-term reliability. The raised face (RF) provides a controlled gasket seating surface, making these flanges suitable for applications involving high pressure, elevated temperatures, and cyclic loading.
The Raised Face Weld Neck Flange (RF WN Flange) is engineered for high-pressure and high-temperature piping systems, combining a long tapered hub, precision-machined raised face, and robust forged construction. The tapered hub provides a gradual transition between the flange and pipe, helping distribute loads and reduce stress concentration at the connection.
The raised face gasket seating surface is precision machined to provide the required surface finish for reliable gasket sealing when properly assembled. Manufactured through a controlled forging process, the flange offers excellent mechanical strength and durability. Heat treatment, when specified, helps achieve the required material properties, while CNC machining ensures accurate dimensions, bore alignment, bolt hole positioning, and surface finish.
This precision forged flange construction provides reliable compatibility with butt-weld pipe connections and makes Raised Face Weld Neck Flanges suitable for demanding oil & gas, petrochemical, chemical processing, and power generation applications.
Raised Face Weld Neck Flanges combine a robust forged construction, tapered hub, and precision-machined raised face to provide reliable performance in demanding industrial piping systems. Their design makes them particularly suitable for applications requiring high mechanical strength, reliable sealing, and resistance to cyclic loading.
Forged construction and tapered hub provide excellent structural strength.
Suitable for demanding high-pressure and high-temperature applications.
Precision-machined raised face provides proper gasket seating for a dependable connection.
Tapered design helps distribute stress and withstand cyclic loading.
Robust construction provides durability and reliable performance in demanding industrial piping applications.
Ferrobend manufactures Weld Neck Flanges in a comprehensive range of Stainless Steel, Carbon Steel, Alloy Steel, Duplex Stainless Steel, Super Duplex Stainless Steel, Nickel Alloys, Titanium, Copper Alloys, and other special engineering materials for demanding industrial applications.
304 • 304L • 316 • 316L
321 • 347 • + More Grades
A105 • LF2 • A350
A694 • A516 • + More Grades
F5 • F9 • F11 • F22
F91 • F92 • + More Grades
F51 • F60 • F52
F44 • S31803 • + More Grades
F53 • F55 • F61
S32750 • S32760 • + More Grades
200 • 201 • 625
825 • C276 • + More Grades
Inconel • Monel • Hastelloy
Incoloy • Alloy 20 • + More Grades
C70600 • C71500 • Brass
Bronze • Cu-Ni • + More Grades
Grade 2 • Grade 5 • Grade 7
Grade 12 • Grade 23 • + More Grades
Shaped between flat or contoured dies — ideal for large-diameter flanges, giving excellent grain flow and strength.
Metal forced into a two-piece die cavity, producing precise, tight-tolerance flanges with minimal machining.
Billet progressively shaped by rotating rollers, giving a uniform grain structure and high fatigue resistance.
Molten metal poured into a mould — a cost-effective process for complex geometries.
Our products are tested and certified as per international quality standards with complete traceability and documentation.
Precision Engineering. Technical Expertise. Global Supply.
