Postalloy® 2506-MCG conforms to AWS A5.21:2011 Class ERCCoCr-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.
- Cobalt Base Hardfacing Alloy
- Shear blades, Fluid flow valves, Extrusion screws, Roll bushings, and Valve bearing surface.
Weld Deposit Properties
- Crack-free deposits with proper preheat (take off)
- Deposit Thickness:
- 2 layers maximum
- 35Rc - 48Rc
Current Type: DC Electrode Positive
|Volts||Amps||Short Arc||Gas||Stick Out|
|16-24||80-225||.045" (1.2mm)||Ar/CO2||3/4" (19mm)|
|16-24||80-225||1/16" (1.6mm)||Ar/CO2||1" (25mm)|
|Volts||Amps||Spray Arc||Gas||Stick Out|
|26-31||220-300||.045" (1.2mm)||Ar/Ox||3/4" (19mm)|
|26-31||80-225||1/16" (1.6mm)||Ar/Ox||3/4" (19mm)|
This wire operates 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.
|.045" (1.2mm)||5 lb (2.27kgs) spool, 25 lb (11.30kgs) spool|
|1/16" (1.6mm)||5 lb (2.27kgs) spool, 25 lb (11.30kgs) spool|