Postalloy® TungGuard™ PS11W

Postalloy® TungGuard™ PS-11W with Reactive Core Technology™ (RCT) is a non-cracking nickel base hardfacing cored wire containing a special blend of tungsten carbides for extreme abrasion as well as corrosion. The matrix is resistant to acids, bases, lye and other corrosive media. This alloy can be applied crack-free with the proper welding procedures. see https://www.hardfacetechnologi... The alloying elements in the wire produce a higher hardness weld deposit that encapsulates and protects the carbide particles, reducing the premature wear caused by erosion to the carbide particles. As a result it achieves a considerable service life improvement in extreme applications compared to PS-10 which it has replaced. The alloy has a low melting range and features good weldability with a smooth arc, reduces weld dilution and carbide dilution to produce a truly outstanding multi-wear wire. Use on low carbon mild and low alloy steels, stainless, nickel and cast iron.

Please visit our dedicated Tungsten Carbide Hardfacing website here for more information.


Product Type

  • Nickel Base Tungsten Carbide Wire
  • Metal-cored
  • Gas-shielded


  • Repairing and hardfacing ferritic and austentic stainless steel tools in the Chemical and Food Industries.
  • Mixer blades
  • Tunnel boring machines
  • Fan Blades
  • Screw Conveyors
  • Brick and clay augers
  • Developed for application to downhole tools in the deep oil and gas drilling industry, such as stabilizers.
  • Ash Handling systems
  • Sinter plant wear parts
  • Slag breakers
  • Decanter centrifuge

Weld Deposit Properties

Average weld deposit hardness:
Aveverage hardness tungsten carbide:
2300-2500 HV (70 Rc+)
Additional information:
Deposits are slag-free
**RCT™ Reactive Core Technology improves weldability and optimizes wear properties
Weld deposits cannot be flame-cut
Can be applied crack-free with proper welding procedure
Service temperature up to 1,000 °F (538 °C)
Deposit Thickness:
2 layers maximum

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter Stick Out
21-23 160-180 1/16" (1.6mm) 1/2" (12.7mm)

Welding Procedure:

Preferred Shielding Gas: 100% Argon
It is highly recommended that the gun and cable length be 8 to 10 feet.
Knurled or cogged drive rolls are recommended for use with this wire. see https://www.hardfacetechnologi...

Packaging Options

Diameter Standard Packaging
1/16" (1.6mm) 25 lb (11.30kgs) spool