brazing galvanized steel pipe

brazing galvanized steel pipe

Offering protection from rust and improving durability, zinc coating on steel pipe makes it a popular choice for applications related to plumbing and construction. Unfortunately, the layer of zinc can make it difficult to fuse the pipe with a braze.

Joining  spiral duct pipe  can be achieved through brazing, a process that utilizes a filler metal that melts more easily than the base metals. When the temperature of the filler metal rises, it liquifies and creates a connection between the components.

Utilizing silver-based filler metals is the best method to effectively braid galvanized steel pipe; though, this task can prove to be difficult because the zinc layer can impede the attachment of the filler material. Fortunately, by selecting a filler metal that is disposed towards zinc, this difficulty can be easily circumvented.

Cleaning galvanized steel pipe is a necessary first step when brazing it. Without this, the zinc layer is liable to form a coating that will act as an impenetrable blockade - blocking the entry of filler metal. Nonetheless, once the surface is spotless, you can then go ahead and add the brazing material.

Employing a torch, the filler metal is brought to its melting point and then spread smoothly along the surface of the pipe. As the torch is moved, the metal becomes incorporated into the length of the pipe. Upon successful application of the filler metal, the two pipes are unified.

As the filler metal hardens, the connection is cooled to form the bond. It is then necessary to inspect the joint for imperfections such as gaps or air pockets. If there are defects, the joint can be re-heated to replenish the filler metal and continue the sticking process.

Crafting a reliable joint involving galvanized steel pipe can be quite tricky - however, utilizing the right materials and strategies can render robust, enduring results.