Postalloy® 2512-E Flux-coated Electrode

Postalloy® 2512-E conforms to AWS CoCr-B. Slightly harder and more wear resistant than 2506-E, due to increasing level of hard chromium carbides, but its impact resistance is somewhat lower and is also tougher to machine. Higher tungsten content improves the hot hardness properties at higher temperatures. Weld deposits also have a greater tendency to relief check if welding procedures are not closely monitored.


Product Type

  • Cobalt Base Hardfacing Electrode


  • Saw teeth, Extrusion Dies, and Chain saw bars.

Weld Deposit Properties

Deposit Thickness:
2 layers
44Rc - 52Rc

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter
15-25 50-70 3/32" (2.4mm)
15-25 80-110 1/8" (3.2mm)
15-25 120-150 5/32" (4mm)
15-30 150-180 3/16" (4.8mm)

Welding Procedure:

Packaging Options

Diameter Standard Packaging
All Diameters 10 lb (4.54kgs) tubes