High-strength and high-flexible acid electrode for ships

The invention discloses a high-strength and high-flexible acid electrode for ships, belonging to the technical field of welding materials and welding. The high-strength and high-flexible acid electrode comprises a welding core and a coating, wherein the welding core is H08A steel; and the coating comprises the following components in mass percentage: 15-45 of reduced ilmenite, 3-30 of rutile, 6-30 of marble, 3-20 of illite, 3-10 of sericite, 1-10 of mica, 5-15 of mid-carbon fe-mn, 0.1-6 of aluminum, 0.05-6 of magnesium, 0.5-3 of ferrosilicon and 1-5 of cellulose. By adopting a manganese and aluminum-magnesium-silicon combined deoxidation mode, the oxidation of manganese is reduced, thereby improving the efficiency of manganese as an alloy agent being transmitted to a welding seam; and theusage amount of manganese and the material cost in the coating are decreased and the manganese content in welding fly dust is reduced, thereby decreasing the toxicity of the welding fly dust, protecting the health of a welder