HPP 561

                SILICON BRONZE
ELECTRODE FOR COPPER BASE ALLOYS, STEELS, CAST IRONS OR COMBINATIONS
GENERAL CHARACTERISTICS
Smooth, stable arc on both AC or DC machines.  Minimum spatter and good slag removal.

TYPICAL APPLICATIONS: Use for welding silicon bronze, copper, malleable iron.  A good choice for welding steel to cast iron, dirty or burned cast iron and malleable iron.  Has many uses for repair of gears and sprockets on farm implements.

Welding Parameters
Diameter            1/8"
Amperage.                 75-115
Current              AC or DC Reverse polarity (electrode +)
Tensile strength up to 65,000 PSI
Hardness           80-100 (BHN)

Procedure:
Weld area should be clean as possible.  Heavy sections should be beveled using  HPP 401 or grinder.  Preheat to 4000 for best results.  Each pass should be thoroughly cleaned.  Slag entrapment should be avoided.  Peening of the deposit will increase its strength and reduce internal stress.