Eagle P-99 Chromium Boron Spray Powder | High-Heat Hardfacing Alloy

Eagle P-99 is recommended for:

Die cutters
Mandrels
Tool rests
Cams
Screws
Molds
Camshafts
Valve seats
Chains
Drill collars
Augers
Steel components
Nickel alloys
Cast iron
Edge build-up
High-heat wear applications

Designed for applications requiring hardness, wear resistance, edge retention and elevated-temperature performance.

Clean the surface thoroughly and remove oil, grease and scale.

Use a grinder to remove oxides where required.

Preheat the base metal to approximately 400°F.

Use a 1–1½" slightly carburizing flame and pre-spray the area to approximately 0.004" thickness.

Release the feed lever and heat until a sweating action occurs.

Weave the torch and add Eagle P-99 powder until the required dimension is achieved.

Allow the component to cool slowly.

Eagle P-99 is a chromium boron spray powder in a tough nickel-base matrix designed for hardfacing steels, nickel alloys and cast iron.

The alloy produces a hard 58–62 HRC deposit that resists softening at high temperatures and provides excellent edge build-up. The finished deposit is also corrosion resistant and non-magnetic.

Why Eagle P-99?

High hardness — approximately 58–62 HRC.

High-heat resistance — resists softening at elevated temperatures.

Excellent edge build-up — useful for knives, edges, seats and similar wear areas.

Corrosion resistant — suitable where corrosion and wear occur together.

Non-magnetic deposit — another useful characteristic for specialized applications.

Broad base-metal compatibility — suitable for steels, nickel alloys and cast iron.

P-99 or P-66?

P-66 = tungsten carbide / 60–64 HRC / severe abrasion / high heat / edge build-up

P-99 = chromium boron / 58–62 HRC / high heat / edge build-up / corrosion resistant / non-magnetic

So the simple positioning is:
P-66 = severe abrasion with tungsten carbide
P-99 = hard chromium-boron wear protection with corrosion and high-heat resistance

Preheat Temperature: Approx. 400°F
Flame: Slightly Carburizing
Initial Pre-Spray Thickness: Approx. 0.004"
Cooling: Cool Slowly
Finishing: Grind using a hard silicon carbide wheel