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Postalloy® 
2512-MCG (formerly part 2512-SPL)
Description
Postalloy® 2512-MCG: Conforms to AWS CoCr-B. Slightly harder and more wear resistant than 2506-MCG, but its impact resistance is somewhat lower and is also tougher to machine. Weld deposits also have a greater tendency to relief check if welding procedures are not closely monitored.
Specifications
Product Type

Wire: Metal-cored, gas-shielded cobalt base hardfacing alloy


Weld Deposit Properties
Deposit thickness  
2 Layers
Hardness (2 layers)  
44-52Rc

Applications

Saw teeth,, Extrusion Dies and Chain saw bars.


Postalloy® 2512-MCG    Welding Parameters
 
Current: Use DC Electrode Positive
Short Arc Amps Volts Gas Stick Out
.045" (1.1mm) 80-22516-24Ar/CO23/4"(19mm)
Spray Arc Amps Volts Gas Stick Out
.045" (1.1mm) 220-30026-31Ar/Ox3/4"(19mm)

Welding Procedure

These wires operate over a wide range of settings and can be used in short-arc and spray transfer. For short-arc welding, use 16-24 volts, 80-225 amps. CO gives the best control, but the most dilution and lowest hardness on first pass. Argon/CO (75/25) gives good control, a better bead appearance and higher first pass hardness. For spray-arc, use 26-31 volts, 220-300 amps. Argon/Oxygen (98/2) works well. It produces minimal dilution and high first pass hardness. Gas flow rate - 40-45 cfh.

Packaging Options
Diameter
Standard Packaging
Special Packaging Available
.045" (1.1mm)
5 lb spool, 25 lb spool
5 lb spool, 25 lb spool