Stainless steel electrode can be divided into chromium stainless steel welding rod and chrome-nickel Stainless Steel Electrodes, who meet the national standard, according the provisions of GB GB/T983-1995 assessment of these two types of electrodes. Chromium stainless steel some corrosion (oxidizing acids, organic acids, cavitation) heat resistance and corrosion resistance. Usually selected as power plants, chemical, petroleum and other equipment and materials. The general case of chromium stainless steel weldability poor, should pay attention to the welding process, heat treatment conditions and the appropriate choice of welding electrodes. Chrome-nickel stainless steel electrode has good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum, medical machinery manufacturing. Welding current should not be too large, in order to prevent the generated eye intergranular corrosion due to the heating, about 20% less than the carbon steel electrode, an arc is not too long, the interlayer fast cooling, preferably with narrow weld.