Postalloy® DuraChrome™ 2835-MCO

Postalloy® DuraChrome™2835-MCO is a high hardness multi-carbide hardfacing alloy containing large volumes of Chromium and Niobium carbides uniformly throughout a tough alloy matrix. It is recommended for applications involving severe abrasion or abrasion coupled with impact.

Specifications

Product Type

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

Applications

  • Iron and Steel - sinter breakers, grizzly bars, augers and conveyor screws, exhaust fans, coke pusher shoes, coke chutes and ash conveyor blades
  • Mining - blast hole augers, ore or coal chutes, classifier flights, buckets and lips, wear plates and bulldozer blades.
  • Power Generation - coal feeder screws, exhaust fan blades, post-hole diggers, and wet centrifugal pumps.
  • Concrete and Cement - bag packer screws, cement chutes, pug mill paddles, die rings and feeder blades.
  • Brick and Clay - arbors, bag packer augers, brick augers, feeder blades, pug mill augers, and screw conveyors

Weld Deposit Properties

Chemistry:
C - 5-6; Cr - 20-23; Nb - 5-8; Bal. - Fe, Si, Mn
Cannot be flame-cut
Deposit will readily relief check-crack
Heat Resistance:
Excellent oxidation resistance up to 1100 °F (591 °C)
Hardness:
60Rc - 65Rc

Welding Parameters

Current Type : DC Electrode Positive , DC Electrode Negative

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

Welding Procedure:

Packaging Options

Diameter Standard Packaging
.045"(1.1mm) 25 lb spool
1/16" (1.6mm) 25 lb spool
3/32" (2.4mm) 55 lbs (25kg) spool, 220 lbs(99.80kg) drum, 500 lb (226.80kgs) drum