Hastelloy C22 Weld Neck Flanges – UNS N06022

Hastelloy C22 Weld Neck Flanges (WNF) are specialized forged pipe connectors easily identified by their long tapered hub, which provides critical reinforcement and is butt-welded to the pipe. This method ensures maximum strength and integrity for the piping system. Fabricated from the exceptional nickel-chromium-molybdenum-tungsten alloy (UNS N06022), these flanges offer supreme resistance to aggressive media, including strong oxidizing agents and chlorides, minimizing the risk of pitting and stress-corrosion cracking at the critical joint. Zeron Fastners is a trusted manufacturer and supplier of Hastelloy C22 weld neck flanges, vital for high-integrity, high-pressure, and high-temperature service in the chemical processing, power generation, and demanding oil & gas industries.

Related Products

Hastelloy C22 Stud Bolts (Used to bolt flange pair) Hastelloy C22 Gaskets (The critical sealing element) Hastelloy C22 Pipe (The pipe welded to the flange) Hastelloy C22 Blind Flanges (For terminating the pipeline) Hastelloy C22 Elbows (Other pipe fittings)
Hastelloy C22 Weld Neck Flanges

Hastelloy C22 Chemical Composition

Element Composition (%)
Nickel (Ni) Balance (Min. 51.0)
Chromium (Cr) 20.0 – 22.5
Molybdenum (Mo) 12.5 – 14.5
Tungsten (W) 2.5 – 3.5
Iron (Fe) 2.0 – 6.0
Cobalt (Co) Max 2.5
Manganese (Mn) Max 0.50
Silicon (Si) Max 0.08
Carbon (C) Max 0.015
Vanadium (V) Max 0.35
Phosphorus (P) Max 0.02
Sulfur (S) Max 0.02

Hastelloy C22 Mechanical Properties

Property Metric Imperial
Tensile Strength, Min 690 MPa 100,000 psi
Yield Strength (0.2% Offset), Min 310 MPa 45,000 psi
Elongation at Break, Min 45% 45%
Hardness, Max 250 HBW 250 HBW
Max Design Temp 650 °C 1200 °F

Feature Products

People also Search for