US Forge Welding Electrode E7018 1/8-Inch by 14-Inch 5-Pound Box #51883 Quality, low hydrogen electrode for x-ray quality welds on construction steels Quality iron powder low hydrogen electrode designed for joining construction grade and problem steels Weldability is excellent on both AC and DC reverse polarity Used primarily on carbon and medium tensile steels, especially under conditions of restraint Excellent for high sulfur, boiler plate, and cast steel