Nickel-Graphite Powder [-200+400]

About Nickel-Graphite Thermal Spray Powder

Nickel-Graphite composite powders are the industry standard for sacrificial, abradable coatings in gas turbine engines, turbochargers, and industrial compressors. The nickel matrix provides bond strength and erosion resistance, while the graphite phase acts as a solid lubricant and dislocator, allowing the coating to be machined or worn in by rotating blades without damaging the tips.

The -200+400 mesh cut (approximately 37 to 74 microns) is a common particle size distribution for this material, offering a balance between flowability for consistent feeding and sufficient surface area for complete melting in the thermal spray jet. This size range is compatible with standard powder feeders used in HVOF and plasma spray systems.

Process Compatibility and Application Guidance

This powder is suitable for atmospheric plasma spray (APS), high-velocity oxy-fuel (HVOF), and combustion flame spray processes. The choice of process depends on the desired coating hardness, bond strength, and the specific component geometry.

• Plasma Spray: Preferred for achieving a controlled, porous, highly abradable structure on large components like compressor stators.
• HVOF: Used when a denser, more erosion-resistant coating is required, often for labyrinth seals or high-pressure compressor sections.
• Flame Spray: A cost-effective option for general clearance control applications and dimensional restoration where extreme bond strength is not critical.

Proper surface preparation, typically by grit blasting with aluminum oxide, is essential to achieve the required bond strength. Coating parameters must be optimized for the specific spray system and component geometry. SPA2Z can assist with technical selection and connect you with application expertise.

About SPA2Z — Your Source for Nickel-Graphite Powder

SPA2Z supports industrial coating professionals by supplying specialized thermal spray powders like Nickel-Graphite [-200+400]. We understand that coating performance starts with consistent, high-quality feedstock. Our role is to provide you with a reliable supply of this critical material, offered in practical pack sizes including 5 kg tins, 10 kg tins, and 25 kg pails, to match your project scale and consumption rate.

Whether you are qualifying a new coating procedure, managing inventory for a maintenance overhaul, or sourcing a dependable powder for production, we are here to help. We focus on responsive service, clear communication, and practical support for your procurement needs.

• Supply of Nickel-Graphite Powder for HVOF, plasma, and flame spray.
• Assistance with grade selection and process compatibility queries.
• Flexible pack sizes to suit project and workshop requirements.

Contact SPA2Z today to request a quotation, discuss your technical requirements, or confirm current availability for your next coating project.