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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. 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.
Product Type

Nickel base Tungsten Carbide Wire: Metal-cored, Gas-shielded
Deposits are slag-free.

**RCT™ Reactive Core Technology improves weldability and optimizes wear properties. Learn more.

Weld Deposit Properties
Average Weld Deposit Hardness   
Aveverage Hardness Tungsten carbide  
2300 - 2500 HV (70 Rc+)
Deposit Thickness  
2 layers maximum
Weld deposits cannot be flame-cut  
Can be applied crack-free with proper welding procedure  
Service temperature up to 1,000°F (538°C)  

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.
Brick and clay brick augers
Ash Handling systems
Sinter plant wear parts
Slag breakers

POSTALLOY® PS-11W    Welding Parameters
Current: DC Electrode Positive
Diameter Amps Volts Stick Out
1/16" (1.6mm)160-18021-231/2"(12.5mm)

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.

Packaging Options
Standard Packaging
1/16" (1.6mm)
25 lb spool