9
All-State®
No. 6 IMP Non-Machinable
Electrode for Cast Iron AC
or DC Reverse Polarity — All Position General
Characteristics All-State®
No. 6 IMP electrode was developed to meet the demand for a higher strength, popular
priced electrode for
the cast irons where machinability is not necessary. Dense, sound welds can be
made in all positions, as the coating
develops an excellent arc stability and cleaning capability.
Typical Applications
Recommended for welding extremely dirty
or grease soaked castings, where other electrodes fail. Widely used on
reclamation
of motor housings, machine bases, levers and cams, farm machinery castings where
machinability is
not necessary. Recommended for a first pass for a good bond on dirty cast iron.
May be finished with any All-State®
machinable electrode for cast iron. Qualities
Tensile —60,000
psi (42.19 kgs/mm2) Color
match —good Current
—AC/DC reverse polarity
Procedures Entire
weld area should be clean. Cracks or edges may be grooved or beveled with All-State®
Chamfer Rod. Preheating
to approximately 400°-500°F (204°-260°C), helps reduce stresses
on complicated castings. Use lowest
possible amperage that will give good fusion and “skip weld” whenever
possible to distribute heat more evenly.
Maintain an arc length of about 1/8" (3.2mm). Not recommended for DC straight
polarity. Use AC or DC
reverse polarity only.
