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Postalloy® 
2894-MCG (formerly part 2894-SPL)
Description
Postalloy® 2894-MCG is a non-cracking medium chromium gas-shielded hardfacing overlay designed for applications that require good corrosion, metal-to-metal wear and good abrasion resistance, but a crack-free weld deposit. It can be applied to carbon and alloy steels, and stainless steels.
Specifications
Product Type
Wire: Metal-cored, gas-shielded.
Deposits are slag-free.
Gases: CO, Ar/CO, Ar/Ox2

When welding out-of-position, use the lower ranges of voltages and amperages: 16-19 volts and 100-150 amps. 


Weld Deposit Properties
Hardness  
28-36Rc
Heat resistance  
Up to 900°F (482°C)
   • Deposits polish in service reducing friction and minimizing wear of the mating surface.
   • Good abrasion resistance
   • Good corrosion resistance
   • Deposits are machinable with carbide tools and good machining practices.
   • Deposits thickness unlimited with proper preheat, interpass, and postheat temperatures.  

Applications
For machine parts and equipment that must be rebuilt back to original dimensions and require a wear resistant overlay in the hardness range of 35Rc.

Postalloy® 2894-MCG    Welding Parameters
 
Current: DC Reverse Polarity
Short Arc Amps Volts Stick Out
.045" (1.1mm) 90-20015-211/2“(12mm)
Spray Arc Amps Volts Stick Out
.045" (1.1mm) 200-32529-335/8”(15mm)
Packaging Options
Diameter
Standard Packaging
.045" (1.1mm)
25 lb spool