Postalloy® 2836-MCO

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 1300°F (700°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

  • Metal-cored
  • Gas-shielded
  • Open-arc
  • Wire
  • Deposits are slag-free

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

Weld Deposit Properties

Additional:
Cannot be flame cut
Deposits will readily relief check-crack
Deposit Thickness:
1-2 layers
Heat Resistance:
Up tp 1300 °F (700 °C).
Hardness:
63Rc - 67Rc

Welding Parameters

Current Type : DC Electrode Positive , DC Electrode Negative

Volts Amps Diameter Stick Out
15-26 100-225 .045" (1.1mm) 3/4"-1"(19-25mm)
20-28 160-300 1/16" (1.6mm) 1"-1½ "(25-38mm)
28-30 230-400 3/32" (2.4mm) 1"-1¼"(25-32mm)
28-32 250-400 7/64" (2.8mm) 1½ "(38mm)

Welding Procedure:

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.

Product Equivalent:

Electrode: Postalloy® 218HD Tubular Electrode

Packaging Options

Diameter Standard Packaging Standard Packaging Available
.045" (1.1mm) 25 lb (11.30kg) spool 220 lb (99.80kg) drum
1/16" (1.6mm) 25 lb (11.30kg) spool 220 lb (99.80kg) drum
3/32" (2.4mm) 55lb (22.70kg) 220 lb (99.80kg) drum
7/64" (2.8mm) 55lb (22.70kg) 220 lb (99.80kg) drum