If only carbon dioxide welding stainless steel flux cored wire, flux cored wire is generally slightly more expensive. The welding process is current and speed control, the current needed debugging, first 200A try. The voltage is approximately equal to 0.04 I + 16V, debugging speed is based on the actual situation. The gas flow rate 15L/min. Use solid wire, then use pulse welding machine, which should have a welder with Panasonic, Lincoln. Wire stainless steel is generally 308 or 309 wire. Welding craftsmen MIG welding shielding gas is 98% Ar +2% O2, 20L/min, current and speed size based on the need to deploy.