Introduction
Incoloy 800H is a high-temperature nickel-chromium-iron alloy that offers excellent corrosion resistance, strength, and durability under extreme conditions. The alloy is commonly used in applications such as heat exchangers, chemical processing equipment, and gas turbines. It is also used in the production of power plants, nuclear reactors, and other industrial applications.
In this article, we will discuss Incoloy 800H in detail, including its chemical composition, mechanical properties, standard specifications, process services, and application areas. We will also look at its equivalent grades and the products that are made from the alloy.
Chemical Composition
Incoloy 800H is a modified version of Incoloy 800 with a higher carbon content. The chemical composition of Incoloy 800H is shown below:
- Nickel (Ni): 30-35%
- Chromium (Cr): 19-23%
- Iron (Fe): 39.5% min
- Carbon (C): 0.05-0.10%
- Aluminum (Al): 0.15-0.60%
- Titanium (Ti): 0.15-0.60%
- Copper (Cu): 0.75% max
- Manganese (Mn): 1.50% max
- Silicon (Si): 1.00% max
- Sulfur (S): 0.015% max
- Phosphorus (P): 0.015% max
The high nickel and chromium content of Incoloy 800H provide excellent corrosion resistance, while the addition of carbon enhances its high temperature properties.
Mechanical Properties
Incoloy 800H has excellent mechanical properties at high temperatures, making it ideal for use in high-temperature applications. The mechanical properties of Incoloy 800H are given in the table below:
- Tensile strength: 450 MPa (65 ksi) min
- Yield strength: 170 MPa (25 ksi) min
- Elongation: 30% min
The above properties are measured at room temperature. At elevated temperatures, the mechanical properties of Incoloy 800H remain stable, with high strength and excellent creep resistance.
Standard Specification
Incoloy 800H is available in various forms, including pipe, plate, strip, round bar, and wire. The standard specification for Incoloy 800H is ASTM B409, which covers nickel-chromium-iron alloys such as Incoloy 800, 800H, and 800HT.
Process Service
Incoloy 800H is used in a wide range of process services that require excellent resistance to high-temperature corrosion and oxidation. The alloy is commonly used in chemical processing equipment, heat exchangers, gas turbines, and other high-temperature applications.
Incoloy 800H can withstand oxidizing and reducing environments, making it ideal for use in sulfuric acid plants, nitric acid plants, and other industrial processes that involve harsh chemicals. Its high-temperature strength and excellent creep resistance also make it suitable for use in oil refineries, power generation plants, and nuclear reactors.
Application Areas
Incoloy 800H is widely used in various industries, including:
- Chemical Processing Industry: Incoloy 800H is an ideal material for manufacturing components in chemical processing plants due to its excellent corrosion resistance. It is used in sulfuric acid production, nitric acid production, and other corrosive processes.
- Power Generation Plants: Incoloy 800H is used in power generation plants to manufacture steam generators, boiler tubes, and other high-temperature components due to its excellent mechanical properties and high-temperature strength.
- Oil and Gas Industry: Incoloy 800H is used in the oil and gas industry to manufacture heat exchangers, furnace components, and other high-temperature equipment.
- Aerospace Industry: Incoloy 800H is used in the aerospace industry to manufacture jet engine parts, exhaust systems, and other high-temperature components.
- Nuclear Industry: Incoloy 800H is used in the nuclear industry to manufacture reactor components, fuel element spacers, and other high-temperature equipment.
Equivalent Grades
Incoloy 800H has several equivalent grades, including:
- Incoloy 800
- Incoloy 800HT
- UNS N08810
- W.Nr. 1.4958
- DIN NiCr21Fe18Nb
Products Made from Incoloy 800H
Incoloy 800H is available in various forms, including pipe, plate, strip, round bar, and wire. ANTON METAL is a leading manufacturer of Incoloy 800H products, including welded and seamless pipes, plates, sheets, coils, fittings, and flanges.
Conclusion
Incoloy 800H is a high-temperature nickel-chromium-iron alloy that offers excellent corrosion resistance, strength, and durability under extreme conditions. Its high nickel and chromium content provide excellent resistance to high-temperature oxidation and corrosion, while the addition of carbon enhances its high-temperature properties.
Incoloy 800H is widely used in various industries, including chemical processing, power generation, oil and gas, aerospace, and nuclear industries. It is also available in various forms, including pipe, plate, strip, round bar, and wire.
ANTON METAL is a leading manufacturer of Incoloy 800H products, including welded and seamless pipes, plates, sheets, coils, fittings, and flanges. The company ensures that all its products meet the highest quality standards and are designed to withstand extreme temperatures and harsh environments.
Overall, Incoloy 800H is an excellent choice for applications that require high-temperature strength and excellent corrosion resistance. Its unique properties make it ideal for use in a wide range of industries, and its availability in various forms makes it easy to incorporate into any design.
Post time: Jun-03-2023
