ASTM B407 UNS N08811 Nickel Alloy Steel Tube
Overview
ASTM B407 N08811 refers to the standard specification for nickel-iron-chromium alloy seamless pipe and tube. The specific alloy designated by N08811 is known as Incoloy 800HT.
Here are some key points about the ASTM B407 N08811 standard:Material Composition: N08811 (Incoloy 800HT) is a solid-solution nickel-iron-chromium alloy with additions of aluminum, titanium, and molybdenum. It offers excellent resistance to high-temperature corrosion and oxidation.Seamless Pipe and Tube: ASTM B407 specifies the requirements for seamless pipes and tubes made from Incoloy 800HT. These pipes and tubes are typically used in high-temperature applications where resistance to corrosion and thermal stability are crucial.Dimensions and Sizes: The standard covers a range of pipe and tube sizes, including outside diameters, wall thicknesses, and lengths. It provides guidelines for the manufacturing process, heat treatment, and mechanical properties of the seamless pipes and tubes.Chemical and Mechanical Properties: ASTM B407 N08811 specifies the chemical composition and mechanical properties of Incoloy 800HT seamless pipes and tubes. These properties include tensile strength.
Chemical Composition of ASTM B407 UNS N08811
Grade | Ni | Cu | Iron | Mn | Al | Si | S | Cr | Ti | |
N08811 | Min | 30.0 | 39.5 | 0.15 | 19.0 | 0.15 | ||||
Max | 35.0 | 0.75 | 1.5 | 0.60 | 1.0 | 0.015 | 23.0 | 0.60 |
Mechanical Properies of ASTM B407 UNS N08811
Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) |
N08811 | ≥65000(450) | ≥25000(170) | ≥30 |
Uses&Application
1️⃣ Petrochemical Industry: Incoloy 800HT pipes and tubes are used in petrochemical plants for processes involving high temperatures, such as reactors, furnaces, heat exchangers, and piping systems.
2️⃣ Power Generation: The alloy's exceptional high-temperature strength and corrosion resistance make it suitable for power generation applications, including steam generators, boiler systems, and turbine components.
3️⃣ Chemical Processing: Incoloy 800HT pipes and tubes are used in chemical processing plants for applications such as solvent extraction, sulfuric acid environments, and handling of corrosive chemicals.
4️⃣ Heat Treatment Equipment: The alloy is employed in the construction of heat treatment furnaces, annealing equipment, and other thermal processing systems that require resistance to oxidation and carburization at elevated temperatures.
5️⃣ Aerospace Industry: Incoloy 800HT finds application in aerospace components, such as gas turbines, afterburners, and engine parts, where it withstands the demanding high-temperature and corrosive conditions.
6️⃣ Food Processing: The alloy's heat resistance and corrosion resistance properties make it suitable for use in applications involving food processing equipment, including ovens, furnaces, and heat exchangers.
It's important to note that the specific application of ASTM B407 N08811 can vary depending on the requirements and regulations of each industry or project.