Nickel Alloys Inconel 718 Socket Weld Flanges

Nickel Alloys Inconel 718 Socket Weld Flanges (SWF) feature a recess (socket) into which the pipe end is inserted and then fillet welded. This design eliminates the need for beveling the pipe end, simplifying preparation while providing a strong, leak-resistant connection, often preferred for smaller bore piping systems carrying hazardous or expensive media. Manufactured from Inconel 718 (UNS N07718), a precipitation-hardenable superalloy, these flanges maintain exceptional mechanical properties, creep-rupture strength, and fatigue resistance at elevated temperatures, coupled with outstanding corrosion resistance in highly aggressive environments. Zeron Fastners supplies these flanges for critical high-pressure and high-temperature applications in nuclear, chemical, and aerospace industries.

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Inconel 718 Socket Weld Flanges

Nickel Alloys Inconel 718 Socket Weld Flanges Chemical Composition

Element Content (%)
Nickel (Ni) 50.0 – 55.0
Chromium (Cr) 17.0 – 21.0
Iron (Fe) Balance
Niobium (Nb) + Tantalum (Ta) 4.75 – 5.50
Molybdenum (Mo) 2.80 – 3.30
Titanium (Ti) 0.65 – 1.15
Aluminum (Al) 0.20 – 0.80
Cobalt (Co) 1.00 max
Carbon (C) 0.08 max

Nickel Alloys Inconel 718 Socket Weld Flanges Mechanical Properties

Property (Age Hardened) Value (min)
Tensile Strength 135 ksi (930 MPa)
Yield Strength (0.2% Offset) 80 ksi (550 MPa)
Elongation 12%
Hardness (Brinell) 248 typical

Nickel Alloys Inconel 718 Socket Weld Flanges Feature Products