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WELDWNG ROD SPECIJFICATiONS
HARD SURFACING AC-DC
medium chrome-carbon electrode
GENERAL APPLICATIONS: Tractor Grousers and Rollers o Scraper Blades o Agri-
cultural Implements o Plow Shares o Hitches • Power Shovel o Dipper Teeth and
Drive Sprockets = Coal Cutters e Conveyor Rolls • Mining Buckets • Rock Crushers
o etc,
SIZES AND HEATS (AMPS)
Diameter .... 3/32" 1/8" _ 5/32" 3/10" 7/32" 1/4"
Amperes 55-85 100-130 1 130-150 175-200 175-250 225-275
SPECl FICATIONS
MEETS
THESE Military ................................. MIL-E-19141C
REQUIREMENTS
Physical Properties of De_positedMetal
As Welded Condition (Rockwell "C" 46-50) .................................................... 450-500 Brinell Hardness
After Cold Working (Rockwell "C" 50-54) ............................................. 500-550 Brineli Hardness
DESCRIPTION
The Medium Chrome-Carbon rod isa 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-meta! 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 hot forged to any desired shape, Deposited metal has avery fine grain and is
free of slag 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 amedium short arc and deposit the
metal with a weaving motion Excellent welding results are obtained in either the vertical or flat position,
WELDING PROCEDURE: Gdnd the surface to clean and remove shallow cracks, rust, or other foreign
material Cracks too deep to be removed by grinding should be gouged out w_th 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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