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Excelloy 20 AC/DC + :

For cast iron, a unique dual alloyed high deposition nickel electrode

The Excelloy 20 produces high speed, high deposition machinable nickel deposits on all types of cast iron. Its specially formulated coating and core wire makes it ideal for use as a build up rod on worn or over machined iron castings. Weld Deposits feature exceptional strength, ductility, and are easily machined.


Applications

For high speed build up and joining of heavy cast iron machine parts. It is ideal for building up compressor heads, machine bases, casting defects and large cast iron gears. The high deposition characteristics of the Excelloy 20 makes it your first choice in situations where large volumes of weld metal need to be applied economically.


Procedure

Clean and prepare weld zone in accordance with standard welding practice. Gouge out cracks and checking with Excelloy 56. Preheat heavy sections to 500 F. Use skip welding technique to reduce distortion. Lightly peen deposit with the ball end of a ball peen hammer. Allow casting to cool slowly.


 

Technical Data

Tensile Strength............................Up to 70,000 PSI.
Elongation.....................................Up to 22%
Hardness.......................................220 Brinell


Recommended Amperage Settings

1/8”
80-120 Amps.

5/32”
90-140 Amps.

3/16”
110-180 Amps.