Incoloy 801 tubing and pipes are designed for harsh and high-intensity chemical environments where the primary requirements and considerations lie with strength, stability, and protection from oxidation. The nickel, iron, and chromium combination is alloyed with the goal that their properties will remain strong even when exposed to higher temperatures, which is why Incoloy 801 is another material that is commonly selected and preferred for applications and environments that tend to be intensely heated and chemically reactive. Through careful control and adjustment of small composition levels of certain materials like aluminum and titanium, Incoloy 801 provides even better and enhanced oxidation, carburization, and sulfur resistance up to 1100�C. Incoloy 801 is also stable and unproblematic in environments with high nitric and mixed acids and in applications with thermal cycles.
Incoloy 801 pipes & tubes can be obtained in seamless, welded, and ERW forms. They are a combination of machinable and formable materials when using common fabrication techniques. They can be welded in the common arc welding process, generally without requiring any heat treatment post-welding, making them useful in complex industrial setups. Resistant to high-temperature corrosion as well as mechanical fatigue, Incoloy 801 pipes & tubes find common use in power generation, petrochemical industry, heat exchangers, furnace parts, as well as other chemical processors. Overall, Incoloy 801 is a robust, cost-effective substitute in high-nickel alloy products when requiring a stable exposure to high temperatures in your industry.
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Specifications of Incoloy of Alloy 801 Pipe and Tube
| Parameter | Specification Details |
| Standard | ASTM, ASME, and API |
| Type | Seamless / ERW / Welded / Fabricated |
| Pipe Size Range | 15 NB up to 801 NB |
| Schedules | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS |
| Tube Size Range | 1 mm OD up to 254 mm OD (0.2 to 20 mm thickness) |
| Length | Single Random, Double Random, Cut Length, & Required Length |
| End Protection | Plastic Caps (Standard for export) |
| End Connections | Plain End, Beveled End, Threaded |
Grade 801 Incoloy Pipes & Tubes Chemical Composition
| Grade | Ni | Cr | Ti | Fe | Mn | Si | Al | C | Cu | S |
| Incoloy 801 | 30.0�34.0 | 19.0�22.0 | 0.75�1.50 | Balance | 1.50 max | 1.00 max | 0.15�0.60 | 0.10 max | 0.50 max | 0.015 max |
Incoloy Alloy 801 Pipe & Tube Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (0.2% Offset) (MPa) | Elongation (%) |
| Incoloy 801 | 650 - 880 | 350 - 550 | 25% |
Alloy 801 Pipes and Tubes Equivalent Grades
| Grade | UNS | Werkstoff Nr. | JIS | AFNOR | BS | GOST | EN |
| Incoloy 801 | N08801 | � | � | � | � | � | � |
Applications of Alloy 801 Pipes and Tubes
These Alloy 801 pipes and tubes are very common in sectors that demand high resistance to high temperature, oxidation, carburization, as well as long service life. Their high stability of mechanical properties renders them applicable to harsh working conditions.
- Chemical and Petrochemical: Applied in heat exchangers, reactors and piping systems in corrosive chemical and high temperature process fluid applications because of their good oxidation and corrosion resistance.
- Oil and Gas Industry: Used in reformers, processing units and in high-temperature piping systems where thermal stress, oxidation and carburization resistance are required.
- Power Generation Plants: It is commonly found in boiler tubes, superheaters, and heat exchangers due to the fact that Alloy 801 is capable of being used at higher operational temperatures without loss of strength and structural integrity.
- Heat Treatment Equipment: Radiant tubes, furnace tubes, retorts, and other parts that are exposed to intense heat and oxidizing conditions are good materials to use.
- Food and Beverage: Applied in heating and processing equipment where high temperature resistance, cleanliness, and material stability are needed with no risk of contamination.
- Biotechnology and Pharmaceutical: Applicable in clean steam lines and high-purity systems that require high levels of corrosion resistance, thermal stability and material integrity.
Frequently Asked Questions (FAQ)
Alloy 801 pipes and tubes are nickel-iron-chromium alloy products designed for high-temperature and oxidation-resistant applications.
Alloy 801 contains controlled aluminum and titanium additions, giving it better oxidation resistance compared to Alloy 800, 800H, and 800HT.
Yes, Alloy 801 pipes and tubes are easily weldable using standard welding methods.
Yes, they are well-suited for furnace and heat treatment applications due to their high-temperature strength.
Yes, Alloy 801 is commonly used in chemical and petrochemical equipment handling high temperatures and corrosive environments.
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