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WELD,NG
ROD
SP;=CUF,CATIONS
,
,
.....
__
__.'---____!
......
HARD
SURFACmNG
AC-DC
medium chrome-carbon electrode
GENERAL
APPLICATIONS:
Tractor
Grousers
and Rollers
e
Scraper
Blades
e
Agri-
cultural
Implements
o
Plow
Shares
o Hitches
•
Power Shovel
•
Dipper
Teeth
and
Drive
Sprockets
e
Coal Cutters
o Conveyor
Rolls
• Mining
Buckets
• Rock Crushers
• etc.
I Diameter
[ Amperes
....
3/32"
=55-85
SIZES
AND
HEATS
(AMPS)
,/8"
I_ l
I_
100-130
130-150_
175-200
175-250
225-275
SPECI FICATIONS
Physical Properties of Deposited Metal
....
As Welded Condition
(Rockwell "C" 46-50)
........................................
450-500 Brinell Hardness
After Cold Working (R0ckwelt "'C" 50-54)
.........................................
500-550 Brinetl Hardness
DESCRIPTION
The Medium
Chrome-Carbon
rod is a hard-surfacing
alloy
steel electrode
with
a coating
of powdered
metals
and flux.
When
welding,
this
special
coating
combines
in the
arc with
the steel core
wire
to give an
extremely
hard
weld-metal
deposit.
Deposited
weld
metal
requires
no heat
treatment
for
maximum
strength,
ductility,
and wear resistance.
Annealing
or heat treating
will not soften
the metal deposit,
which
is not machinable,
but may
be hoI forged
to any desired
shape. Deposited
metal
has a very fine grain
and is
free of stag and porosity.
The metal
is tough
and highly
resistant
to wear and impact.
The rod is designed
for use with
either
AC or DC (either
polarity).
Hold
a medium
short
arc and deposit
the
metal with
a weaving
motion.
Excellent
welding
results
are obtained
in either
the vertical
or flat position.
WELDING
PROCEDURE:
Grind
the surface
to clean and remove
shaltow
cracks,
rust,
or other
foreign
materiatl
Cracks
too deep to be removed
by grinding
should
be gouged
out with
a cutting
torch or cutting
rod. Use the "drag"
technique
to deposit
weld
metal,
to thin
edges when desirable
or weave a wider
bead,
or use a "free"
arc.
2-3
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