1. ASTM grade of Incoloy 800 seamless pipe
The ASTM grade for Incoloy 800 seamless pipe is ASTM B407. This standard specifies the requirements for seamless nickel - chromium - iron alloy pipes for general - purpose applications.
2. Mechanical properties of Incoloy 800 seamless pipe
Tensile strength: Typically, the minimum tensile strength is around 550 MPa.
Yield strength: The minimum yield strength is approximately 215 MPa.
Elongation: It has an elongation of at least 30%.
3. Chemical composition of Incoloy 800 seamless pipe
Nickel (Ni): 30.0 - 35.0%
Chromium (Cr): 19.0 - 23.0%
Iron (Fe): Balanced (the remainder of the alloy after accounting for other elements)
Carbon (C): ≤0.10%
Manganese (Mn): ≤1.50%
Silicon (Si): ≤1.00%
Sulfur (S): ≤0.015%
4. Applications of Incoloy 800 seamless pipe
Heat exchangers: It is widely used in heat exchangers due to its good heat - resistant and corrosion - resistant properties.
Furnace components: Incoloy 800 seamless pipe is suitable for manufacturing furnace components such as radiant tubes and muffles because it can withstand high temperatures.
Chemical processing industry: It is used in various chemical processes where resistance to corrosive media is required.
Power generation: In power plants, it is used in applications such as steam generators and superheaters.
5. Advantages of Incoloy 800 seamless pipe
High - temperature resistance: It can maintain good mechanical properties and dimensional stability at high temperatures, up to about 1100°C.
Corrosion resistance: It has excellent resistance to a variety of corrosive media, including acids, alkalis, and salts, which helps to extend the service life of the pipe in harsh environments.
Good formability and weldability: It is relatively easy to form and weld, which facilitates the manufacturing and installation of pipes.
Low thermal expansion: It has a relatively low coefficient of thermal expansion, which reduces the stress and deformation problems caused by thermal expansion and contraction.
