Postalloy® DuraBuild™ 2866-FCO

Postalloy® DuraBuild™ 2866-FCO is a flux-cored, open-arc high chromium-nickel-manganese alloy that produces deposits with excellent strength combined with a high degree of toughness. Fully austenitic weld deposits are especially suited for building-up or buffer layers before hardfacing with a more abrasion resistant alloy. Weld deposits work-harden in service and provide outstanding impact resistance. The austenitic structure of the weld deposit provides very good corrosion resistance as well as good scale resistance up to 1600°F (870°C). It's versatility allows it to be used for joining, as well as a cushion layer prior to hardfacing with a harder, more wear resistant alloy. Use on carbon and alloy steels, stainless and manganese steels and joining dissimilar combinations.


Product Type

  • Wire
  • Flux-cored
  • Open-arc


  • Steel mill rolls
  • Kiln trunnions
  • Cable sheaves
  • Ingot buggy car wheels
  • Dredge ladder rolls
  • Forging dies

Weld Deposit Properties

Tensile Strength:
100,000 psi
Yield Strength:
78,000 psi
Hardness as deposited:
Work hardens in service to:
Deposits cannot be flame cut

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter Stick Out
25-28 150-200 .045" (1.1mm) 1" (25mm)
27-29 180-250 1/16" (1.6mm) 1"-1¼"(25-32mm)

Welding Procedure:

Product Equivalent:

Electrode: Postalloy® 206HD Flux-coated Electrode

Packaging Options

Diameter Standard Packaging
.045" (1.1mm) 25 lb (11.30kg) spools
1/16" (1.6mm) 25 lb (11.30kg) spools