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.

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Specifications

Product Type

Wire
Metal-cored
Gas-shielded
Open-arc

Applications

SURFACING MINING: Shovel Teeth Wear Parts Dragline Teeth Wear Parts Bulldozer Blades Rippers Augers
PROCESSING: Mixing and Blending Screw Conveyors Mixer Paddles
DEEP MINING: Longwall Miners Continuous Miners Cutter Drums Conveyor Parts
DREDGING: Teeth Cutter Drums Shovel Teeth Wear Parts
RECYCLING/DEMOLITION: Compactor Cleats Grapples Clamshell Buckets Bulldozer Blades Wear Parts
MINERAL PROCESSING: Chutes and Screens Screw Conveyors 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 Paving Machine Augers
TUNNELING: Horizontal Directional Drilling Equipment Wear Parts Augers
QUARRY EQUIPMENT: Shovel Teeth Shovel Wear Parts/ Adapters and Shrouds Bulldozer blades and Wear Parts Augers

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