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Postalloy® 2506-E Conforms to AWS CoCr-A. Cobalt base hardfacing alloy with chromium carbides providing excellent resistance to metal to metal wear and corrosion over a wide temperature range. Offers outstanding self-mating, anti-galling properties and it is effective when abrasion is accompanied by thermal shock or impact. Deposits are machinable. Crack free deposits can be made with proper preheat, post heat and inter-pass temperature.

Product Type

Electrode: Cobalt base hardfacing alloy

Weld Deposit Properties
Crack-free deposits with proper preheat (take off)  
Deposit thickness  
2 layers
Hardness (2 layers)  
Deposits are machinable  


Shear blades, Fluid flow valves, Extrusion srews, Roll bushings and Valve bearing surface.

Postalloy® 2506-E    Welding Parameters
Current: DC Electrode Positive
Diameter Amps Volts
3/32" (2.4mm)50-7015-25
1/8" (3.1mm)80-11015-25
5/32" (4.0mm)120-15015-25
3/16" (4.8mm)150-18015-30
Packaging Options
Standard Packaging
All Diameters
10 lb tubes