The Definitive Guide To Carbon Steel AWWA Flanges

AWWA flanges are used in a variety of applications. They can be found as slip-on, forged, or Class 125 lightweight. Forged flanges are more expensive and difficult to install, but they provide better protection. The main difference between these flanges is their neck, which is formed by welding. This is important to note because this is the point where you’ll need to take special care when installing them.

Forged Flanges

Forged Carbon Steel AWWA Flanges are available in different sizes, thicknesses, and types. They are used in various applications, such as waterworks, wastewater, and slurry systems. These fittings are generally welded onto the pipe threads.

The materials used for forged flanges include Carbon Steel, Nickel Alloy, Cast Iron, and Stainless Steel. Generally, the material is rated according to the maximum pressure that it can handle. These materials can be used in many environments, including moderately oxidizing, reducing, and corrosive environments.

Forged flanges have better mechanical properties, are more robust, and offer excellent resistance to climate factors. They are often used in pipeline service because of their ability to resist high temperature and high-pressure conditions.

Welding neck

The American Water Works Association (AWWA) is an organization of water professionals worldwide. It is a scientific and educational body. One of its essential tasks is standardization. A flange is a device to connect pipes. Flanges come in various shapes and sizes and are made from different materials.

Flanges are used in many industries. They are beneficial for connecting pipes and valves. However, they are vulnerable to leakage if not correctly installed. So, it is essential to use the correct AWWA flanges.

Carbon steel flanges are highly favored due to their excellent corrosion resistance. They are also relatively cheap to purchase.


Slip-on carbon steel AWWA flanges are a type of flange that has a ring joint. This style of the flange is typically used in water service applications. The AWWA is an abbreviation for the American Water Works Association.

These flanges are available in several different grades and are made from a variety of commercially available grades of steel. Typically, the flange is sealed with a rubber gasket.

The AWWA flanges are designed to meet pressure requirements for potable water applications. These flanges can be used in many applications, such as wastewater and plant piping. In addition, they are available in a variety of sizes and thicknesses. They also come with various features, such as a flat face.

Class 125 Lightweight

The AWWA flanges provide a variety of potable water applications. These include flanges and valves and are designed for high-pressure and light-duty uses. This is a non-profit association with around 50,000 members worldwide.

Several standards and specifications are used to determine the appropriate properties of flanges. They vary based on material and temperature. In addition, some standards evaluate the properties that influence broader industrial flange applications. Some of these are AWWA C207, ASME B16.5, and ANSI B16.5.

Awwa C207 is a flange specification that sets a specific material’s minimum physical and chemical properties. It is used for both steel and gray iron flanges. However, it does not require a specific grade of steel.

Surface finish

There are different kinds of surface finishes for carbon steel AWWA flanges. They can be either smooth, serrated, or photographic. The serrated finish is generally used for high-pressure applications, and the phonographic finish is used for lower-pressure applications.

Flanges with a serrated finish have a ridge or grooves on their surface. This helps with gasket sealing. These flanges may also be available with a spiral ridge or a concentric ring. The grooves can have a diameter of 0.06 inches or larger. Depending on the size of the flange, the grooves can have 24 grooves per inch.

The flange surface finish is typically measured visually or with a profilometer. Profilometers are electronic-quality instruments that detect peaks and valleys on the surface.

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