Postalloy® CF-28

CHROMIUM FREE HARDFACING
Postalloy® CF-28 is a high hardness, Chromium free hardfacing overlay designed for high abrasion applications with minimal impact. The unique wear properties are derived from a network of Boron Carbide and Nickel in a hard carbon/iron matrix. Abrasive wear properties are similar to traditional Chromium Carbide alloys of similar hardness. This alloy has excellent weldability with a very smooth bead when used with any common shielding gas. CF-28 is self-fluxing and has no any slag when used without a shielding gas.

Specifications

Product Type

  • Wire
  • Metal-cored
  • Gas-shielded
  • Open-arc

Applications

  • SURFACING MINING - Shovel Teeth, Wear Parts, Dragline Teeth, Bulldozer Blades, and Rippers Augers
  • PROCESSING - Mixing and Blending Equipment, Screw Conveyors and Mixer Paddle
  • DEEP MINING - Longwall Miners, Continuous Miners, Cutter Drums and Conveyor Parts
  • DREDGING -Teeth Cutter Drums, Shovel Teeth and Wear Parts
  • AGRICULTURE - Subsoiler Teeth, Tillage tools, Cultivators Sweeps, Rippers and Injector knives
  • MINERAL PROCESSING - Chutes and Screens, Screw Conveyors and Clamshell buckets
  • CONSTRUCTION/EARTHMOVING - Ground Engaging Tools, Dozer and Grader Blades, Trencher Teeth, Ripper Shanks and Teeth, Shovel Teeth, Buckets, Compactors and Tampers, Foundation Drills, Asphalt Grinding Drums and Paving Machine Augers
  • TUNNELING - Horizontal Directional Drilling Equipment, Wear Parts and Augers
  • QUARRY EQUIPMENT - Shovel Teeth, Shovel Wear Parts/ Adapters and Shrouds, Bulldozer blade and Wear Parts Augers
  • RECYCLING/DEMOLITION - Compactor Cleats, Grapples, Clamshell Buckets, Bulldozer Blades and Wear Parts

Weld Deposit Properties

Additional:
Deposits will check crack to relieve stress
Deposit Thickness:
maximum Thicness: 2 layers
Machinable:
Non-machinable
Hardness:
- 65Rc

Welding Parameters

Current Type : DC Electrode Positive

Volts Amps Diameter Stick Out
150-250 20-25 1/16" (1.6mm) 3/4"(19mm)
100-200 18-22 .045" (1.1mm) 1/2"(12mm)

Welding Procedure:

Packaging Options

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