the weldability of 2 # steel is very good, that is, it is common carbon steel. The welding method can be used for all welding types in your place, such as manual arc welding, TIG and CO2. Because you are 2mm thick, you don't need to make a groove during butt joint, assemble them on the working platform, leave a gap of 1.5~2mm, and fix them by spot welding with a distance of 5mm. Use channel steel at both sides of the weld. Welding. SMAW: covered electrode diameter: 2.5 mm. Welding current: 85-1a

CO2: welding wire diameter: .8~1.2mm Welding current: 12~16A. Welding voltage: 2-22v. Gas flow: 15-18l/min. TIG welding wire diameter: 2mm. Welding current: 1-16a.