770

Excellent Choice For Factory Maintenance Departments!
Fully Machinable!

For machinable welding of cast iron all positions, filling holes, fabricating to steel, motor blocks, housings, gears, pressure chambers, malleable fittings. Thin to heavy sections. Preheat is not usually required - critical applications, heavy sections preheat to 450 degrees F. Light peening is recommended. Cover and let cool slowly. DC use reverse polarity.

Tensile Strength/ Hardness: Up to 70,000 PSI, 185 BH
Type of Current: AC - DC
Welding Process: ARC, MIG, TIG

725

Very good machinability, high resistance to impact, high ductility, high tensile strength. Universal use on cast iron. Its outstanding wettability on cast iron makes it ideal for filling, sealing, cladding and joining cast iron to steel.

Tensile Strength/ Hardness: Up to 75,000 PSI , RB 89-96
Type of Current: AC - DC
Welding Process: ARC, MIG, TIG

700

Non-machinable, low-cost, high strength electrode for welding and building up of dirty, oil-soaked cast irons. Perfect color match for gray cast iron. The weld deposits rust for invisible repairs on castings of all types: foundry defects, machine bases, farm equipment, etc. Sealer electrode for oily and dirty cast. If a machine deposit is required, remove or gouge unwanted metal with chamfer. Maintain a short arc. Deposit short bead 1" to 2". Do not overheat the workpieces. Allow to cool naturally or by covering with asbestos or lime.

Tensile Strength/ Hardness: Up to 60,000 PSI , 500 BH
Type of Current: AC - DC
Welding Process: ARC, MIG, TIG