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Butt welding is a welding method that joins metal structures such as steel pipes, angles, I-beams, and sheet metal by melting the contacting parts using wires or other means. There are several methods of butt welding, including resistance welding, continuous fusion, and heated fusion. Which method is selected depends on the grade and quality of the parts to be joined. Butt welding is also used to connect pipes made of corrosion-resistant materials. This type of welding is recognized as delicate and requires expertise to ensure a secure connection. Joints made with butt welds are economical and equal in strength to the rest of the pipe or structure, making them easier to install and more reliable and safer. Specialized welders are used for butt welding, and the type of welding depends on the size and material of the product to be welded. Current control is important in butt welding, and the strength of the joint depends on the type of welder used and the welder's qualifications. The process of butt welding includes several stages: preparation, installation, cleaning, heating, welding, and cooling. It is important to follow all technical requirements and to avoid damaging the edges and surfaces of the product. Butt welding can be performed on both rotating and non-rotating joints, and additional techniques such as tack welding or overlay welding can be used to strengthen the joint. Experience, qualifications, and attention to detail are critical to achieving high quality butt welds.