GENERAL CHARACTERISTICS

HPP 673 is an unique electrode for arc welding or brazing aluminum and aluminum alloys. Welds are strong, dense and free of porosity on both production and maintenance applications. Arc is exceptionally stable, operates at low amps with a minimum of spatter and fuming. Weld deposits have good color match and corrosion resistance. Ideal for welding heat-treated aluminum parts. Ideal for outdoor use when Mig and Tig is often not suitable. Slag is virtually self-releasing. May be also used as a brazing rod with oxy-acetylene torch.

TYPICAL APPLICATIONS: Repairing of automotive, truck and bus parts. Also for tanks, pipes, ladders, shelves, refrigeration equipment, foundry patterns and many other aluminum parts. Suitable for 1100, 3003, 6061, 6062, 6063, 5052 types of aluminum and many other types.

Welding Parameters

Diameter

3/32"

1/8"

5/32"

Amperage

50-80

80-130

100-160

Current.

DC Reverse Polarity (electrode+)

Technical Data:

Tensile Strength ...up to 34,000 PSI

Elongation....approx 20%

Hardness40-55 (BHN)

Procedure: Thoroughly clean weld area of all foreign material, including oil, lubricants and grease. A 700 900 bevel should be used when butt welding base materials 1/8" or thicker. No preheat is necessary on thin gauge material. However, flatter, smoother welds are produced on heavier sections if they are preheated to approximately 4000F. Hold electrode vertical to the work piece and maintain short arc length. Stringer beads should be used. Remove slag between passes. Restart arc on existing weld deposits. Allow part to cool slowly. Chip off all slag before quenching. For complete slag removal use a wire brush with a 10% sulfuric acid and hot water solution. Rinse with clean hot water.