Inconel 718 Flanges are high-performance components used in piping systems. These flanges are primarily used for their extreme temperature resistance and strength retention, even at cryogenic temperatures. Alloy 718 is a nickel-based alloy that contains chromium, iron, niobium, molybdenum, tantalum and other elements. The most common type of Nickel Alloy 718 Flange is the Weldneck Flange which has a neck projecting from the hub diameter of the flange that makes it suitable for welding into a system using conventional methods. This flange type provides excellent leak resistance due to its welded connection and can be connected without bolts or gaskets while creating an incredibly strong joint.

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Nickel Alloy 718 Flange Corrosion Resistance

Inconel 718 Alloy flanges are a type of weld neck flange made from nickel-based Inconel 718 alloy. , UNS N07718 provide superior corrosion resistance due to high chromium, molybdenum, and niobium content levels. These chemical elements offer strong protection against seawater and chloride-induced corrosion and excellent temperature stability up to 1000°F (538°C). The weld neck design makes them particularly useful in critical applications where stress concentration must be minimized. Overall, they are an ideal choice for many corrosive environments.

718 Inconel Ring Type Joint Flanges (RTJ) Wholesaler, ASME 16.5 Inconel Alloy 718 Slip On Raised Face (SORF) Flanges, Inconel 718 Orifice Flange Traders, Alloy 718 Flanges Dealer, Inconel 718 Flanges Stockist, 718 Nickel Alloy Weld Neck Flanges Manufacturer, UNS N07718 Socket weld Flanges, Class 300# 718 Inconel Lap Joint Flanges Exporters.

Alloy 718 Flange Machining

Machining Inconel 718 Pipe Flanges is a complex process that requires precision and skill when cutting and finishing them. A Weldneck Flange (WNF) is the most commonly used type of flange, which utilizes a conical transition from an outside diameter to its bore opening. The WNF has long been relied upon for durability, strength, corrosion resistance, and even heat resistance due to its high melting point. Due to these benefits, it is also often used in machining applications. There are two main methods for machining Alloy 718- milling or grinding - both of which involve carefully measuring the piece's dimensions before operating with higher-speed tools. Finishing can be done through polishing or sandblasting according to customer preferences.

Inconel 718 Flanges

Inconel 718 Flanges

UNS N07718 Flange Welding

Inconel 718 flanges welding can be accomplished successfully using the Gas-Tungsten Arc Welding (GTAW) process. This method is recommended to get the best grain structure, weld penetration and mechanical properties for this material. When choosing a filler metal, use one with similar chemical composition and strength, such as Nimonic 90 or NiCrFe-3 welding alloy. Preheating prior to welding is highly recommended; it helps reduce heat input while reducing distortion of the parts being welded. Heating up to 500°F is optimal for this job, after which cooling should be done slowly in order to obtain best results.

Inconel Alloy 718 Composition

Inconel 718 Alloy is an alloy of nickel, chromium, and iron that is known for its high strength and excellent corrosion resistance. It's commonly used in components that need to function reliably in temperatures ranging from cryogenic up to 1200°F (650°C). Its density ranges between 8.0-8.3 grams/cm³. The most common type of Nickel Alloy 718 flange used with this alloy is a Weldneck Flange which offers the benefits of increased pressure rating and stress distribution across the entire ring face area instead of just where the bolts intersect it. Due to their manufacturing process, Weldneck flanges also have more consistent tolerances than slip-on or threaded flanges.

AMS 5663 flange Uses

Inconel 718 Flanges are designed with a weld neck connection. The AMS 5663 flange is primarily designed to attach two different pipes or vessels together for pressurized systems in high-temperature environments. Welding the Inconel 718 Alloy flange onto the pipe creates a secure leak-proof seal while providing increased pressure ratings and operational performance over other standard sealed connections.

What are Inconel 718 flanges?

Inconel 718 flanges are metal components used to connect pipes or valves in high-temperature and high-stress applications. They are made from Inconel 718, a nickel-chromium alloy that offers excellent corrosion resistance and high strength at elevated temperatures.

What are the advantages of using Inconel 718 flanges?

Inconel 718 flanges offer several advantages over other materials. They have excellent resistance to corrosion and oxidation in high-temperature & high-pressure environments. They also have excellent mechanical properties, including high strength, and toughness.

What are the applications of Inconel 718 flanges?

Inconel 718 flanges are commonly used in high-temperature and high-pressure applications, such as in gas turbines, jet engines, and rocket engines. They are also used in the chemical processing and oil and gas industries, where they are exposed to harsh & corrosive environments.

EN 1092-1 Inconel Alloy 718 Reducing Flanges, 718 Inconel Weld Neck Raised Face Flanges (WNRF) Flanges Exporters, Inconel® Alloy 718 Square Flanges, Werkstoff No 2.4668 Flat Face Flanges, Inconel Alloy 718 Pipe Flanges, Inconel 718 Socket Weld Raised Face Flanges (SWRF) Traders, Inconel JIS NCF 718 Spectacle Blind Flanges Suppliers, Inconel 718 Tongue & Groove Flanges, Inconel 718 Flange Manufacturer.

Inconel® Alloy 718 Socket Weld Flanges Specification

Specifications ASTM B564 / ASME SB564

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

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

Size 1/2″NB TO 60″NB

Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

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

Grade 718 UNS (N07718), DIN (2.4668)

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Inconel 718 Flanges Equivalent Indian Standard

Inconel 718 N07718 2.4668

ASTM B564 Inconel® Alloy 718 Forged Flanges Chemical Composition

C Mn P S Si Cr Ni Mo Cb Ta Ti Al Co B Cu
0.08 0.35 0.015 0.015 0.35 17-21 50-55 2.8-3.30 4.75-5.50 0.05 0.65-1.15 0.20-0.80 1.00 0.006 0.30

718 Inconel ASME SB564 Threaded / Screwed Flanges Mechanical Properties

Ultimate Tensile Strength, psi .2% Yield Strength psi Elongation % Hardness Rockwell B
135,000 70,000 45 100

Other Types of 718 Inconel Industrial Flanges

  • Inconel 718 Slip On Flanges
  • 718 Inconel® Pipe Flanges
  • Nickel Alloy 718 Blind Flanges
  • Inconel® Alloy 718 Orifice Flange
  • Inconel Alloy 718 Long Weld Neck Flanges

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