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Tungsten Carbide Hardfacing
Tungsten Carbide Hardfacing can help increase
service life of equipment by 300% to 800%.

POSTALLOY® Tungsten Carbide Hardfacing wires are specially engineered to ensure maximum service life of hardfaced surfaces. Hardface Technologies offers a variety of hardfacing alloys to meet your specific needs. We provide tungsten carbide hardfacing wires alloyed with various metals such as nickel, chromium, silicon and boron to create products that ensure maximum protection of your equipment in virtually any environement.

Benefits of POSTALLOY® Tungsten Carbide Hardfacing Products include:

  • Hardness up to 70 Rc
  • Easy to apply with low current
  • Unsurpassed wear and corrosion resistance

In addition to Tungsten Carbide Hardfacing wires, Postle Industries offers a complete line of Hardfacing Products engineered for maximum service life of your equipment.

Carbide Embedding
Mig Tungsten Carbide is a welding process that deposits extremely hard tungsten carbide particles (70 Rc) in the weld puddle of a hardfacing wire as it is applied.
  • Use in extreme abrasion environments
  • Incorporates intact tungsten carbide particles for maximum abrasion resistance
  • More abrasion resistant than Chromium Carbide
  • Provides 200%-800% wear life compared to typical hardfacing wires
  • Easy to apply
Mig Carbide is unsurpassed in abrasion and impact resistance when applied with POSTALLOY PS-98. This is because softer wires wear away allowing the tungsten carbide to literally fall off the wear surface. POSTALLOY PS-98, with a hardness of up to 60 Rc, prevents this from happening.
Mig Tungsten Carbide
MIG Tungsten Carbide for Mining and Earthmoving
Application Equipment and Procedures
Estimated Costs and Savings
Weld Deposit Properties
Typical Applications
POSTALLOY® PS-98 is a metal-cored, triple deoxidized, iron base hardfacing matrix wire, alloyed with chromium and molybdenum. It is primarily used as a matrix alloy for the MIG Carbide Embedding Process and will consistently provide an even distribution of carbide particles throughout the entire weld deposit. Hardness range is 55-60 HRC. Unlike soft metal steel welding wires which are commonly used with the MIG Carbide Embedding Process, the high hardness tool steel microstructure of POSTALLOY® PS-98 is designed to encapsulate and protect the carbide particles from premature erosion.
Hardness (1 Layer): 55-60Rc
Grader blades
Bulldozer blades
Excavator parts
Dredge cutter teeth
Tunneling equipment
Auger teeth
Wood chippers
Hammers for recycling
Landscaping landfill
Land clearing
Asphalt shingle recycling
Waste processing systems
Tub grinders
PS-98 Data Sheet
Metal Cored Wire
Weld Deposit Properties
Typical Applications
POSTALLOY® 299-SPL is an open-arc hardfacing overlay that utilizes a specially formulated tungsten carbide to produce a "highly feathered" microstructure that is unusually hard and more abrasion resistant than standard tungsten carbide hardfacing wires. Operates at lower than normal currents to minimize dilution and help develop its high hardness and unique microstructure in the first layer. For extreme earth abrasion resistance with little or no impact. Hardness: Tungsten Carbide - 2300 HV
Matrix Alloy: 60-65Rc
Deposit Thickness: 2 layers maximum
Deposits will readily relief check-crack
Scraper blades
Bulldozer blades/end bits
Grader blades/bits
Mixer screws
Feed screws
Fan blades
Concrete mixer paddles 299-SPL Data Sheet
Weld Deposit Properties
Typical Applications
POSTALLOY® PS-9 & PS-10 are tungsten carbide, nickel base hardfacing wires designed to resist severe abrasion but unlike traditional tungsten carbide wires, they absorb more impact without fracturing. These alloys can be applied crack-free with the proper welding procedures. These alloys are great for parts that are repeatedly hardfaced and are prone to spalling. Because of the unique chemistry, Tungsten-Carbide-Nickel-Chromium-Silicon-Boron, they also have excellent resistance to erosive wear, frictional wear, corrosive wear, and maintain their hardness, even at temperatures of 1100°F (593°C). Weld deposits contain over 50% fully fused, pre-alloyed carbides. The alloying elements in these wires produce a high hardness alloy that encapsulates and protects the carbide particles, reducing premature wear caused by erosion next to the carbide particles. POSTALLOY® PS-9 & PS-10 have very good weldability and a very soft arc, this, in combination with the nickel matrix, reduces weld dilution and carbide dilution to produce truly outstanding multi-wear wires. POSTALLOY® PS-9 is softer, 40-45Rc, with a tougher matrix than PS-10 for applications that require more toughness. It has the same carbide hardness and concentration. Ave Weld Deposit Hardness PS-9: 40-45Rc
Ave Weld Deposit Hardness PS-10: 50-55Rc
Ave Hardness Tungsten carbide: 2400 HV (70 Rc+)
Deposit Thickness: 2 layers maximum
Weld deposits cannot be flame-cut
Can be applied crack-free with proper welding procedure

Processing equipment
Mixer blades
Feed screws
Oil and gas drilling
Down hole tools
Dredging equipment
Cutter heads
Wear rings PS-9 and PS-10 Data Sheet
Tungsten Carbide Electrodes
Weld Deposit Properties
Typical Applications
POSTALLOY® 220HD is a proprietary blend of Tungsten Carbide with a small addition of Chromium Carbide. It produces a very smooth weld deposit with improved impact resistance over pure Tungsten Carbide. The unique blend of Tungsten Carbide in a Chromium rich matrix also provides some corrosion protection but primarily helps to provide a high polish in service to reduce the coeffcient of friction. When protection against severe abrasion, with limited impact, is needed, POSTALLOY® 220HD is an ideal choice.
   • Easy out-of-position weldability with the 1/4" diameter
   • Excellent AC or DC operation, even on a "buzz box"
   • Low amperage and high metal recovery - no slag to chip. POSTALLOY® 220HD is over 90% efficient.
   • High deposition rates - up to 3 times faster than ordinary electrodes
   • Moisture resistant coating, even under severe weather or high humidity
Average 2 Layer Hardness: 64-68Rc
Tungsten Carbide Hardness: 75Rc
Deposit thickness: 2 layers
Relief checks readily to prevent stress build-up.
Conveyor screws and augers
Cutter and dredge teeth
Mixer paddles and blades
Shredder and anvil knives
Bucket pin ends
Coal and cement fans
Tamping tools
220HD Data Sheet
Weld Deposit Properties
Typical Applications
Postalloy® CP63070-M is a nickel base self-fluxing powder alloy combined with a very special high carbon tungsten carbide grade to produce the highest amount of abrasion resistance possible. The matrix that encapsulates the carbides has a hardness of 55–60 RC.
The Tungsten Carbide in CP63070 has a very high hardness with a very dense, uniform crystalline structure.
The residual stresses are far lower than conventional tungsten carbide, providing better toughness and impact resistance.
The particles have almost no microdefects, enhancing the wettability characteristics.
The low fusing temperature of this alloy combined with cobalt-free carbides help to reduce solution alloying and melting of the carbides.
The tungsten carbide used is this product goes through an oxidation reduction process that reduces the oxidation potential of this alloy. This helps to reduce unwanted overspray and gives the operator more control of the puddle.

Postalloy® CP63070-M uses the same nickel base self-fluxing powder alloy, but with a more economical, less abrasion resistance and less impact resistant tungsten carbide. Designed for less abrasive wear environments or when maximum abrasion resistance is not required.
Hardness (1 Layer): 58-62Rc
Hardness Tungsten Carbide: 2000-2300 HV
Average Hardness Matrix: 55-60Rc
Tillage tools
Drill bits
Auger points
Cane knives
Mixer blades and paddles
Coveyor screws
Fan blades
Pump screws CP63070 and CP63070-M Data Sheet

If you have questions or require additional information please contact Postle Industries at (216) 265-9000
or contact your local distributor.