... Model No.: Welding Electrode AWS E6013(J421, J38.12)2. Available size: 2.5x300mm, 2.5x350mm, 3.2x350mm, 4.0x400mm, 5.0x400mm3. Packing ... steel, such as ships, vehicles, building, and general machinery. Detailed Specifications for Carbon Steel Welding Electrode AWS E6013(J421, J38.12 ... , Length & Recommended Current (AC/DC) Diameter (mm)φ2.0φ2.5φ3.2φ4.0φ5.0Length (mm)300300350400400Current (A)40~7050 ...