WN RF Flanges

Why Choose Our Weld Neck Flanges?

• Superior Strength & Durability: The extended neck design allows for a butt weld, creating a seamless connection that withstands extreme pressure and temperature variations.  
• Reduced Stress Concentration: The tapered hub design smoothly transfers stress, minimizing the risk of fatigue and failure.  
• Ideal for Critical Applications: Perfect for use in oil and gas, chemical processing, power generation, and other demanding industries.  
• Wide Range of Sizes & Materials: We offer a comprehensive selection of sizes, pressure classes (e.g., ASME B16.5 Class 150, 300, 600, etc.), and materials (e.g., Carbon Steel, Stainless Steel, Alloy Steel) to meet your specific project requirements.
• Precision Machining & Quality Assurance: Our flanges are manufactured to stringent industry standards, ensuring precise dimensions and reliable performance.  
• Seamless Integration: Designed for easy welding and integration into existing piping systems.  

• Long Neck Design: Provides reinforcement and reduces stress.  
• Butt Weld Connection: Creates a strong, leak-proof seal.  
• High Pressure & Temperature Rating: Suitable for demanding applications.  
• Various Material Options: Tailor your selection to your specific needs.
• ASME B16.5 Compliant: Meets industry standards for quality and performance.

• Oil and Gas Pipelines  
• Chemical Processing Plants
• Power Generation Facilities
• Refineries  
• Water Treatment Plants
• Any high-pressure or temperature piping application.

• Stainless Steel Weld Neck Flanges :
• ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
• Duplex & Super Duplex Steel Weld Neck Flanges :
• ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
• Carbon Steel Weld Neck Flanges :
• ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Low Temperature Carbon Steel Weld Neck Flanges : ASTM A350, LF2, LF3
• Alloy Steel Weld Neck Flanges :
• ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91 Copper Alloy Steel Weld Neck Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
• Nickel Alloy Weld Neck Flanges :
• ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)