Postalloy® DuraChrome™ PS135-MCO

Postalloy® DuraChrome™PS135-MCO is a large diameter, high hardness multi-carbide (complex 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. Large diameter wire is generally more alloy rich than smaller diameter wire.


Product Type

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


  • 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

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

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter Stick Out
28-32 300-400 7/64" (2.8mm) 1 1/2" (38mm)
28-32 300-400 1/8" (3.1mm) 1 1/2" (38mm)

Welding Procedure:

Packaging Options

Diameter Standard Packaging
7/64" (2.8mm) 55 lb coil, 220 lb drum, 500 drum
1/8" (3.1mm) 55 lb coil, 220 lb drum, 500 drum