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All-State®
No. 8 Electrode
for Welding Thin Sections of Cast Iron AC
or DC Reverse Polarity (Electrode + ) All Position General
Characteristics All-State®
No. 8 is used by large volume welders who want a good machinable deposit. The
high nickel content of this
electrode makes it useful when only a single pass is required and machining is
done after welding. Typical
Applications Welding
of defects and filling holes in thin sections of cast iron. (This is commonly
done on production lines where castings
are imperfect but can be salvaged by welding.) All-State®
No. 8 is also used in repairing cracks, breaks and
missing sections of thin walled castings. Qualities
Tensile strength—up to 50,000
psi (35.16 kgs/mm2) Yield
strength—up to 40,000 psi (28.13 kgs/mm2)
Elongation in 2"—2 to 4%
Hardness—175 to 225 BrineIl
Deposit—magnetic
Color match—good
AWS A5.15, Class ENiCI-A
Procedures Preheating
is seldom necessary but warming to 400°F (204°C) will produce a softer
and more machinable deposit. When
foreign material such as sand and slag are found in the area to be welded, remove
with All-State® Chamfer
Rod, grinding, or chipping until good
solid base metal is reached. Use stringer beads or narrow weave beads.
Peening after each pass will help to
relieve stresses.
