sveisetråd

Sveisetråd, also known as welding wire, is a consumable material used in various welding processes, most notably in gas metal arc welding (GMAW) and flux-cored arc welding (FCAW). It serves as the filler metal that melts and fuses with the base metals to create a strong joint. The composition of the sveisetråd is crucial and is carefully selected to match the type of metal being welded, ensuring compatibility and achieving the desired mechanical properties of the weld.

Sveisetråd comes in various forms and diameters, typically supplied on spools for automated feeding systems or in straightened lengths. Common materials for sveisetråd include steel (carbon steel, stainless steel), aluminum, and copper alloys. For steel, different classifications exist based on their tensile strength and alloying elements, such as ER70S-6 for general-purpose welding. Stainless steel wires often contain chromium and nickel to provide corrosion resistance.

The choice of sveisetråd depends on factors such as the base metal, welding position, required weld strength, and environmental conditions. Proper handling and storage of sveisetråd are important to prevent contamination, which can negatively impact weld quality. Contaminants like moisture, oil, or dirt can lead to porosity or other defects in the weld.