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Postalloy®
2836-MCO (formerly part 2836-SPL)
Description
Bucket Teeth
Bucket Teeth
POSTALLOY® 2836-MCO is a high hardness multi-carbide hardfacing alloy that resists severe abrasion, including high stress grinding, low stress scratching and gouging abrasion. It maintains its hardness and wear resistance up to 1400°F (760°C). The chemistry is highly tolerant of dilution. One layer will easily outwear two layers of ordinary chrome carbides and in some applications the wear is equal to tungsten carbide. Use on low carbon mild steel, manganese, stainless, and low alloy steels.
Specifications
Product Type

Wire: Metal-cored, open arc or gas-shielded. Deposits are slag-free.

Electrode equivalent: Postalloy® 218HD


Weld Deposit Properties
Hardness  
63-67Rc
Deposit Thickness  
1-2 layers
Cannot be flame-cut  
Deposit will readily relief check-crack  

Applications

Blast furnace charging equipment
Agricultural implements
Sinter plant parts
Cement mill parts
Coke pusher shoes
Brick making equipment
Wear plates

Cereal grinding equipment
Tong bits
Conveyor screws
Slag ladles
Mixer paddles
Ash fans
Solid waste shredder parts


POSTALLOY® 2836-MCO    Welding Parameters
 
Current: DC Reverse or Straight Polarity
Diameter Amps Volts Stick Out
.045" (1.1mm)100-225 15-26 3/4"-1"(19-25mm)
1/16" (1.6mm)160-300 20-28 1"-1┬Ż "(25-38mm)
3/32" (2.4mm)230-40028-301"-1┬╝"(25-32mm)
7/64" (2.8mm)250-40028-321┬Ż (38mm)

Welding Procedure

While all sizes of Postalloy 2836-MCO will easily operate with or without a gas cover, you may find applications for .045 and 1/16 for which you prefer a shielding gas. If a gas cover is used, Argon/CO2 or 100% CO2 is recommended. This will cause amperages to go up by about 10% and the stick-out should be shortened. When welding out of position, use the lower range of amperages and voltages. In addition, a gas cover maybe useful, especially when using a constant current power source and voltage sensing feeder.