Forged WN Pipe Flange, ASTM A182 F55, ASME B16.5, 4 IN, CL150

Super Duplex stainless steel weld neck flange, forged WN pipe flange built for industrial piping connection. It features a nominal diameter of 4 inches, DN100, ASTM A182 Grade F55 super duplex stainless steel material, pipe schedule SCH 10S, made per ASME B16.5 standard, pressure class 150 LB, and RF raised-face sealing type, heat number T204484. This flange has strong mechanical properties and excellent anti-corrosion capacity. Its tapered hub eases stress transition, making it suitable for offshore, chemical, and oil and gas pipelines, providing dependable butt-welded joints in severe corrosive service environments.

Tags:

• ASME B16.5 Flange
• 4 Inch Flange
• RF Flange
• Super Duplex Stainless Steel Flange
• SCH 10S Flange
• DN100 Flange
• ASTM A182 F55 Flange

Super Duplex Stainless Steel Weld Neck Flange

Product Identity: Forged WN pipe flange for industrial piping connection
Product Type: Weld Neck Flange (WN Flange)
Nominal Diameter: 4 Inch, DN100
Material: ASTM A182 Grade F55 Super Duplex Stainless Steel
Pipe Schedule: SCH 10S
Applicable Standard: ASME B16.5
Pressure Class: 150 LB
Sealing Face Type: RF Raised Face
Heat Number: T204484

This heavy-duty forged weld neck flange is engineered to the ASME B16.5 standard. Fabricated with super duplex stainless steel ASTM A182 Gr F55, it delivers outstanding resistance against pitting, crevice, and stress corrosion. It comes in a 4-inch size with SCH10S pipe wall specification, a 150 lb pressure rating, and a raised face sealing surface. The hub geometry smoothly distributes mechanical load at butt weld joints. It is widely deployed in offshore, petrochemical and saltwater-corrosive pipeline projects.