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Products >> HARDFACING Core, Bare, and Coated Electrodes

 

HARDCOVER 420

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HardCover 420 (HC420) is a high chromium
cast iron for hardsurfacing components subject
to extremely severe abrasive wear and moderate
impact. The weld deposit contains a high
proportion of hard primary chromium carbides
in a tough austenitic matrix. HC420 is
used for hardfacing components undergoing
wear by earth, sand and abrasives.


Typical Applications
• Gyratory crusher cones and mantles
• Catalyst pipes and valves
• Slurry pipes and valve bodies
• Dredge pump bodies
• Sand dredge parts
• Extruder screws
• Mining and earth moving equipment


AWS Classification

Hardfacing


Welding Current

DCEN


Typical wire chemistry

(as welded)
C 5
Mn 1.5
Si 1.5
Cr 27
Fe BAL


Typical Mechanical Properties

(As Welded)
Hardness on 3 layers, Rc 60 - 62


Welding Positions

F,H


Available Diameters and suggested
Operating Range in Amps

.045" 100 - 300
1/16" 150 - 350
3/32" 250 - 400
1/8" 250 - 500

< CLICK HERE for additional information on this alloy >

 

 

Products >> HARDFACING Core, Bare, and Coated Electrodes

 

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