Filler Metals 1/8" Aluminum Electrode, White Flux, 5 lb. per Pack
 Product Details:
  - A low-hydrogen iron powder type electrode that produces high quality x-ray welds.
  - It can be used in all positions on AC or DC reverse polarity welding current.
  - Recommended for welding medium grade carbon steels where no preheat is used, and on cold rolled steels normally exhibiting excessive porosity when welded with conventional electrodes.
  - Typical applications includes low-alloy structurals, low, medium and high carbon steels, offshore rigs and power plants, steel structures and tack welds for tubular wire applications.
  - Vacuum sealed to optimize performance.
  - Ideal for AC applications requiring low penetration
  - DC+/AC Current acceptable
  - H4 electrodes have low hydrogen content which make them resistant to cracks and allows them to form stronger welds for a longer period of time.