Tender For supply of welding electrode as per aws e 6013 for structural steel, size: 3. 15 mm. dia. x 350 mm. long , welding electrode as per aws e7018 for carbon steel, size: 2. 5 mm. dia. x 350 mm. long , welding electrode as per aws e7018 for carbon steel, size: 3. 15 mm. dia. x 350 mm. long , filler wire as per aws a-5. 18 er-70-s2 for carbon steel material, size: 2. 4 mm dia x 1000 mm long.