Incoloy 800 Flanges

what is an incoloy 800 flange?

Incoloy 800 is a type of nickel-iron-chromium alloy that is known for its excellent strength and high resistance to oxidation, carburization, and other forms of high-temperature corrosion. Incoloy 800 flanges are typically used in applications that involve high temperatures, such as chemical processing, power generation, and oil refining.

Incoloy 800 flanges are made from this alloy and are designed to connect pipes, valves, pumps, and other components in a piping system. They come in various sizes and shapes, such as slip-on, socket weld, threaded, blind, and weld neck flanges. Incoloy 800 flanges are commonly used in environments with temperatures ranging from 1100°F to 1800°F (593°C to 982°C).

Some of the key properties of Incoloy 800 flanges include high strength, excellent resistance to corrosion, good ductility, and ease of fabrication. These properties make them an ideal choice for use in applications that involve high-temperature and high-pressure environments.

Composition of Incoloy 800

Incoloy 800 is a nickel-iron-chromium alloy that belongs to the family of high-temperature alloys. Its chemical composition is as follows:

• Nickel (Ni): 30-35%

• Iron (Fe): 39.5% min.

• Chromium (Cr): 19-23%

• Manganese (Mn): 1.5% max.

• Copper (Cu): 0.75% max.

• Titanium (Ti): 0.15-0.6%

• Aluminum (Al): 0.15-0.6%

• Carbon (C): 0.1% max.

Incoloy 800 Flanges Applications

Incoloy 800 is known for its excellent resistance to oxidation, carburization, and nitridation at high temperatures, as well as its good strength and creep-rupture properties. It is commonly used in applications such as heat exchangers, furnace components, and petrochemical processing equipment.

Incoloy 800 Flanges Specifications

The specifications for Incoloy 800 flanges may vary depending on the specific application requirements. However, the following are some common specifications for Incoloy 800 flanges:

1. Size: Incoloy 800 flanges are available in various sizes ranging from 1/2 inch to 48 inches or more.

2. Pressure rating: Incoloy 800 flanges are available in various pressure ratings such as class 150, class 300, class 600, class 900, class 1500, and class 2500.

3. Face type: Incoloy 800 flanges can be manufactured with various face types such as raised face (RF), flat face (FF), ring type joint (RTJ), and male and female (M&F).

4. Material: Incoloy 800 flanges are made from Incoloy 800 or a related alloy.

5. Standards: Incoloy 800 flanges are manufactured to various industry standards such as ASME/ANSI B16.5, ASME/ANSI B16.47, API, and DIN.

6. Coating: Incoloy 800 flanges can be coated with various materials such as PTFE, Xylan, and Teflon.

7. Connections: Incoloy 800 flanges can be connected to other equipment using various methods such as welding, threaded, or bolted.

It is important to consult with a qualified engineer or manufacturer to determine the appropriate specifications for Incoloy 800 flanges for a specific application.

The equivalent material grade for Incoloy 800 flanges 

Incoloy 800 flanges depends on the specific international standard used for reference. Some equivalent material grades for Incoloy 800 flanges are:

1. ASTM B564 UNS N08800 - This is the standard specification for nickel alloy forgings, including flanges, fittings, and valves, made from Incoloy 800.

2. DIN 1.4876 - This is the German equivalent to Incoloy 800 and is used for a variety of high-temperature applications, including flanges.

3. BS NA15 - This is the British Standard for Incoloy 800 and is commonly used for high-temperature applications, including flanges.

4. JIS NCF800 - This is the Japanese Industrial Standard for Incoloy 800 and is commonly used for high-temperature applications, including flanges.

It is important to note that each material grade may have slightly different chemical compositions and mechanical properties, so it is important to consult the specific material specification to ensure that it is suitable for the intended application.

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