NC1237 Incoloy 800 (Alloy 800, UNS N08800) Tube/Pipe

Incoloy 800 (Alloy 800, UNS N08800) Tube/Pipe Description:

Incoloy alloy is also a range of superalloys produced by Special Metals Corporation. They are nickel-iron-chromium alloys that are used for applications that require high corrosion-resistant and high-temperature strength. Incoloy alloys are quite similar to Inconel alloys but their different composition makes some distinctions in their applications.
Alloy 800 is a widely used material of construction for equipment that must resist corrosion, have high strength or resist oxidation, carburization, and other harmful effects of high-temperature exposure. The Chromium in the alloy imparts resistance to oxidation and corrosion. The high Nickel content maintains an austenitic structure so that the alloy is ductile. The Nickel also contributes resistance to scaling, general corrosion, and stress corrosion cracking. The iron content provides resistance to internal oxidation.

Other trade names: Alloy 800, UNS N08800, Ferrochronin 800, Nickelvac 800, Nicrofer 3220, Werkstoff Nr. 1.4876

Incoloy 800 (Alloy 800, UNS N08800) Tube/Pipe Specifications:

Metal Type: UNS N08800
Standard: ASTM B407, ASTM B829, ASTM B514, ASTM B775, ASTM B515, ASTM B751, BS3 3074NA15, ISO 6207, DIN 17459, VdTüV 412 & 434

Chemical Composition, %

Incoloy 800 (Alloy 800, UNS N08800) Tube/Pipe Applications:

- Steam/hydrocarbon reforming for components such as pigtails, headers, collectors, manifolds, transfer piping, catalyst tubes, and quench system piping
- Ethylene pyrolsis tubing in convection and radiant sections - resistance to carburization and good mechanical properties
- Ethylene dichloride cracking tubes - resistance to carburization and to dry hydrogen chloride and chlorine components, e.g. Heat exchangers, piping systems, etc., in coal conversion plants
- Steam generators tubing in helium coolant, high-temperature reactor systems - high strength, resistance to helium and steam

FAQs

Q1. What is Incoloy 800 Tube/Pipe?

Incoloy 800 Tube/Pipe (also known as Alloy 800 or UNS N08800) is a high-temperature, corrosion-resistant alloy primarily composed of nickel, chromium, and iron. It is used in applications requiring strength and resistance to oxidation and carburization at high temperatures.

Q2. What are the main applications of Incoloy 800 Tube/Pipe?

Incoloy 800 Tube/Pipe is commonly used in industries and applications where high temperature, corrosion resistance, and mechanical strength are crucial. Typical uses include:

• Heat Exchangers: In both industrial and power generation plants, for handling hot gases or fluids.
• Nuclear Power Plants: For use in steam generators, reactor cores, and other components exposed to high temperatures and corrosive environments.
• Chemical Processing: For piping in refineries, reactors, and furnaces, especially where high temperature and sulfur exposure occur.
• Gas Turbines: For turbine blades, combustion chambers, and exhaust systems.
• Furnace Components: In applications like burner tips, thermocouple sheaths, and heat exchangers.

Q3. What are the properties of Incoloy 800 Tube/Pipe?

• High-Temperature Strength: Incoloy 800 maintains excellent mechanical strength at elevated temperatures up to 1,100°F (593°C).
• Corrosion Resistance: It resists oxidation and carburization, making it ideal for high-temperature environments with exposure to corrosive substances.
• Resistance to Sulfur: The alloy performs well in sulfur-rich environments, which makes it suitable for chemical and petroleum processing.
• Good Weldability: Incoloy 800 can be welded using conventional welding methods, which is ideal for custom piping solutions.