Reliable Steel Solutions for Global Industrial Projects
Alloy 718 UNS N07718 Nickel Alloy Steel Welding Neck Flanges
Key Advantages
- Wide Range of Industrial Steel Materials
- Reliable Global Supply and Fast Delivery
- Strict Quality Control and Certified Materials
- Customized Solutions for Industrial Applications
- Professional Service with Long-Term Partnership
Our premium range of Alloy 718 (UNS N07718) welding neck flanges is specifically engineered to deliver superior performance in the most extreme environments. Manufactured to international standards, these flanges offer exceptional resistance to high-temperature oxidation, reducing acids, and chloride-induced stress corrosion cracking. Leveraging the unique metallurgical properties of Alloy 718—including high tensile strength and creep resistance at elevated temperatures up to 1300°F (700°C)—these flanges ensure leak-proof sealing and optimal pressure containment. Designed for the most demanding applications, they are ideally suited for critical industries such as aerospace, oil & gas wellhead equipment, subsea systems, nuclear power generation, and chemical processing.
Product Range & Dimensions (Welding Neck Flanges)
Our Alloy 718 welding neck flanges are available in a comprehensive range of sizes, pressure classes, and facing finishes to meet diverse project requirements:
Flange Type: Welding Neck Flange (WN) – Designed with a long tapered hub for high-pressure and high-temperature applications. This design provides essential reinforcement and facilitates stress transfer between the pipe and the flange, making it ideal for cyclic and severe service conditions.
Facing Finishes: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Male-Female (M&F), Tongue & Groove (T&G)
Size Range: Nominal Diameter: 1/2″ to 48″ (DN15 to DN1200)
Pressure Classes: 150#, 300#, 600#, 900#, 1500#, 2500# (PN16 to PN420)
OEM & Custom Services / OEM
We understand that standard catalogs cannot cover all project needs. Our OEM customization services allow you to tailor nickel alloy flanges to your exact specifications:
Special Facing Finishes:
Custom RTG grooves, special serrated finishes, or smooth finishes as per specific gasket requirements.
Custom Dimensions :
Non-standard hub dimensions, special bolt circle diameters, or unique flange thicknesses for specialized equipment connections.
Marking:
Laser marking or low-stress stamping with your logo, alloy grade, heat number, pressure class, and specification details.
