Postalloy® DuraHard™ 2825NC-MCG

Postalloy® DuraHard™ 2825NC-MCG is a non-cracking carbide containing martensitic hardfacing alloy for improved abrasion and impact resistance compared to standard general purpose hardfacing alloys. DuraHard™ 2825NC-MCG works especially well on dirty contaminated surfaces. Weld deposits are smooth and free of any slag. An excellent choice for applications requiring crack-free deposits with good wear characteristics. Use on carbon and low alloy steels.

Specifications

Product Type

  • Wire
  • Metal-cored
  • Gas-shielded

Applications

  • Scraper blades
  • Shovel and Dragline bucket teeth
  • Bulldozer blades and end bits
  • Backhoe buckets
  • Tillage tools
  • Conveyor screw auger flights
  • Mixer blades
  • Fan blades
  • Shredder & Shredding equipment
  • Dredge parts

Weld Deposit Properties

Maximum Overlay:
Unlimited layers with proper procedures, including preheat and interpass temperatures
Deposits are slag free
Good hot-hardness up to 1000 °F (593 °C)
Machinable:
Non-machinable
Hardness:
58Rc - 60Rc

Welding Parameters

Current Type : DC Electrode Positive

Volts Amps Diameter Stick Out
26-31 160-350 1/16" (1.6mm) 3/4"-1" (19-25mm)
27-32 250-425 5/64" (2mm) 1"-1 1/2" (25-38mm)

Welding Procedure:

Gas: 98%/2% Ar/Ox; Preheat and interpass temperature according to base metal chemistry.

Packaging Options

Diameter Standard Packaging
1/16" (1.6mm) 25 lbs (11.30kgs) spool
5/64" (2mm) 25 lbs (11.30kgs) spool