Inconel 600 (UNS N06600 / CY40) Gate Valves

Falcon High-Performance Inconel 600 (UNS N06600 / CY40) Gate Valves

At Falcon, we engineer and manufacture heavy-duty Inconel 600 Gate Valves designed for full-bore, low-pressure-drop isolation, extreme high-temperature strength, and exceptional corrosion resistance in severe chemical and high-heat processing environments. Cast in high-purity ASTM A494 Grade CY40 (Cast Inconel 600) and forged from ASTM B564 UNS N06600, our Inconel 600 gate valves feature a high-nickel matrix (≥72%) that provides virtually complete immunity to chloride-induced stress-corrosion cracking (SCC) and superior resistance to dry chlorine, hydrogen chloride, and high-temperature oxidation up to +1093 ∘C (+2000 ∘F).

Key Features & Advantages

• Immunity to Chloride Stress-Corrosion Cracking: High nickel concentration (≥72%) eliminates chloride-induced stress corrosion cracking (SCC) that destroys conventional 300-series stainless steel valves in hot, halide-bearing media.

• Exceptional High-Temperature Oxidation Resistance: Forms a tightly adherent, protective oxide scale that resists severe oxidation, carburization, and nitriding at elevated service temperatures up to +1093 ∘C.

• Resistance to Dry Halides & Caustics: Superior performance in dry chlorine gas (Cl2), hydrogen chloride (HCl), high-purity caustic soda, and organic acid process loops.

• Bi-Directional Zero-Leakage Seating: Precision-machined flexible or solid wedge profiles paired with hard-faced seat rings ensure certified API 598 / ISO 5208 leak-tight isolation under fluctuating pressure and temperature differentials.

• Heavy-Duty OS&Y Construction: Outside Screw and Yoke (OS&Y) design keeps stem threads isolated from aggressive process media, preventing stem thread corrosion and galling while providing visual position indication.

Gate Valve Design Configurations Offered

• API 600 Bolted Bonnet Inconel 600 Gate Valves:

  • Design: Heavy-duty cast body with flexible wedge geometry to prevent mechanical thermal binding in high-temperature pipelines (2" to 24").

  • Best For: Furnace atmosphere isolation, caustic processing lines, and high-temp chemical reactors.

• API 602 Forged Inconel 600 Gate Valves:

  • Design: Heavy-wall forged body with bolted or welded bonnet for high-pressure, small-bore piping systems (1/2" to 2").

  • Best For: High-temperature steam drains, instrument take-offs, and chemical injection manifolds.

• Pressure Seal Inconel 600 Gate Valves:

• Design: Internal line pressure forces the bonnet seal tighter against the valve body ring, ensuring zero body-bonnet leakage at high pressures and extreme temperatures (Class 900 to 2500).

• Best For: Primary nuclear cooling loops, cracking furnace feeds, and extreme power generation lines.

Primary Industrial Applications

• Chemical & Petrochemical Processing: Production of organic and inorganic chlorides, titanium dioxide (TiO2) chlorination reactors, and caustic soda evaporator systems.

• Nuclear Power Engineering: Primary coolant loop piping, high-purity water systems, and control rod drive components.

• Thermal Processing & Furnaces: Heat-treating furnace atmospheric controls, retort isolation, burner manifolds, and high-temp exhaust gas lines.

• Aerospace & Rocket Propulsion: High-temperature engine test stand piping and rocket motor exhaust duct isolation.

Quality Assurance, Testing & Certification

Every Falcon Inconel 600 Gate Valve undergoes strict quality control and metallurgical verification before dispatch:

• 100% Positive Material Identification (PMI): Conducted on body, bonnet, wedge, and stem components

• Hydrostatic Shell & Seat Testing
• Fugitive Emissions Certified
• Non-Destructive Examination (NDE)
• EN 10204 Type 3.1 & Type 3.2 Material Test Reports (MTRs): Full heat number traceability provided with every shipment.

Request a Quote or Technical Support

Protect your high-temperature process lines and caustic systems with Falcon Inconel 600 Gate Valves. Contact Falcon Today for your upcoming project.