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How to Weld Duplex Pipe?

How to Weld Duplex Pipe?

Welding is a complex and highly technical process, but it is necessary for many industrial and commercial applications. One type of welding process that has become increasingly popular in recent years is duplex pipe welding. Duplex pipe welding can be used to join two pipes together without any additional parts or fixtures. In this blog post, we will discuss the basics of how to weld duplex pipes properly and efficiently.

The Basics of Duplex Pipe Welding

Duplex pipe welding requires specialized tools and processes, so it’s important to have some basic understanding of the process before trying it out for yourself. First, you need a clean work area with good ventilation as well as the proper safety equipment (such as helmets, gloves, etc.). You also need access to a gas or electric arc welding machine and a TIG welder. To begin the welding process, make sure that both pipes are clean and free from dirt or debris. Then you must choose the appropriate filler material for your project; this should be based on your specific application needs.

Once all the materials are ready, you can begin setting up your equipment. Connect the power source to both pieces of metal using clamps or clips and then connect them together using an electrode holder with a low-voltage tungsten electrode inside. When everything is connected correctly and safely, you can turn on the power source and set up your arc welder according to the manufacturer’s instructions. Once everything is set up correctly, you can begin welding by moving the electrode along the seam of both pipes in a single pass until they are securely joined together. After each pass, use a wire brush to remove any slag build-up on both surfaces before continuing with another pass until all pieces are completely joined together.


Welding duplex pipe is not an easy task; however, if you take the time to learn about it properly and practice regularly, you will get better over time. Make sure that you always use high-quality equipment when attempting any kind of welding job—it could save your life! Following these steps will help ensure that your next duplex pipe welding project goes off without a hitch!

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