E7015 is a high-performance, low-hydrogen basic electrode known for its excellent crack resistance and superior weld mechanical properties. It is primarily used for welding carbon steel and low-alloy steel structures requiring extremely high quality. The key to its successful use lies in strict pre-welding drying and heat preservation measures, as well as the requirement for DC reverse power supply. If you are welding load-bearing structures, pressure vessels, or equipment working in harsh environments, E7015 is usually one of the preferred electrodes.