1 All-State®
No. 3 General
Purpose Cast Iron Rod Torch
Application General
Characteristics A
high quality cast iron torch alloy that has superior welding qualities over other
cast iron welding rods. This alloy
will flow out at a lower temperature without melting the base metal; this quality
gives the weld greater strength
with less carbon enbrittlement. Typical
Applications Commonly
used for maintenance and production welding of both heavy and light castings.
It is extensively used for
repairing cracks and breaks, filling surface defects and building up worn or missing
parts where highest quality work
is required and a machinable deposit is a must. Machine bases, equipment parts,
cylinder heads, blocks, manifolds,
motor and gear housings are only a few applications of All-State®
No. 3. Qualities
Tensile strength—up to 45,000
psi (31.65 kgs/mm2) Hardness—175
to 225 BrineIl Color
match—good Working
temperature—1500°F (816°C) Procedures
Remove all scale, rust, dirt and grease.
Use All-State® Chamfer Rod or other means
to vee out joint to 80 degrees.
Preheat casting to 800°F (427°C). A large tip with a neutral flame should
be used. Hold torch so that inner
cone is 1/8" (3.2mm) to 1/4" (6.4mm) from base metal, continue to heat until an
area about 1" in diameter turns
a dull red; dip heated end of rod into All-State®
No. 5 flux and apply a small amount of alloy. Flow each
deposit out continuing to add alloy
and flux. Each pass should not be more than 1/4" (6.4mm) thick. Continue
welding until job has been completed.
Allow to cool slowly by covering with an insulating material.
