Postalloy® DuraHard™ PS156Nb-FCO

Postalloy® DuraHard™ PS156Nb-FCO is a large diameter, non-cracking martensitic tool steel type hardfacing alloy with numerous tightly packed carbides for excellent abrasion resistance under high impact. Deposits are smooth and free of any slag. One layer deposits exhibit wear characteristics that you would expect from chromium carbide hardfacing products. An excellent choice for applications requiring crack-free deposits with good wear characteristics. Use on carbon and low alloy steels. Large diameter wire is generally more alloy rich than smaller diameter wire.


Product Type

  • Wire
  • Gas-shielded
  • Flux-cored


  • Scraper blades
  • Road ripper teeth
  • Bucket Teeth
  • Tillage tools
  • Auger flights
  • Mixer blades
  • Fan blades
  • Shredder & Fibrizer Hammers

Weld Deposit Properties

C - 1.3-1.6; Cr - 5-8; Nb, Mo - 5-8; Bal. - Fe, Si, Mn
Deposit Thickness:
Unlimited layers with proper procedures, including preheat and interpass temperatures
Heat Resistance:
Temperature resistance 1000 °F (538 °C)
Non-machinable, must be ground. Cannot be flame cut
57Rc - 61Rc

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter Stick Out
28-32 250-400 7/64" (2.8mm) 1½" (38mm)
28-32 300-450 1/8" (3.2mm) 1½" (38mm)

Welding Procedure:

Packaging Options

Diameter Standard Packaging
7/64" (2.8mm) 55 lb (25kg) spool, 220 lb (99.80kg) drum, 500 lb (226.80kg) drum
1/8" (3.2mm) 55 lb (25kg) spool, 220 lb (99.80kg) drum, 500 lb (226.80kg) drum