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POSTALLOY® 2506-E: Conforms to AWS CoCr-A. Cobalt base non-cracking hardfacing alloy with excellent resistance to mechanical wear and corrosion over a wide temperature range. It retains an effective hardness even up to 1500°F (816°C). 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
High hardness up to 1500┬░F (816┬░C)  
Crack-free deposits with proper preheat  
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: DCEP
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