MCrAlY Powder [-170+325]

About MCrAlY Powder [-170+325]

MCrAlY refers to a family of metallic coating alloys where M stands for a base metal—typically Nickel (Ni), Cobalt (Co), or a combination of both—combined with Chromium (Cr), Aluminum (Al), and Yttrium (Y). These elements work together to provide exceptional resistance to high-temperature oxidation and hot corrosion, making MCrAlY coatings a standard choice in gas turbine engines, industrial boilers, and other demanding applications.

The -170+325 mesh designation indicates a controlled particle size distribution. Powder passes through a 170-mesh screen (approximately 90 microns) and is retained on a 325-mesh screen (approximately 44 microns). This specific cut ensures consistent powder flow through thermal spray feeders, stable melting in the flame or plasma jet, and optimal coating density with low oxide content.

Thermal Spray Process Compatibility

This powder is suitable for several thermal spray processes. The final choice depends on the specific coating requirements, base material, and component geometry.

• HVOF (High Velocity Oxygen Fuel): Produces very dense, well-bonded coatings with low porosity and minimal oxide formation. Preferred for critical rotating parts where coating integrity is paramount.
• Plasma Spray: Offers flexibility for a wide range of substrates and coating thicknesses. Suitable for large components and field applications where high deposition rates are needed.
• Flame Spray: A cost-effective option for less critical applications or where equipment portability is required. Coatings typically have higher porosity compared to HVOF or plasma.

Typical Applications

MCrAlY coatings are applied to components that must withstand high temperatures, oxidation, and corrosive gas environments. Common applications include:

• Gas turbine hot-section components: combustion chambers, transition ducts, and first-stage blades.
• Industrial boiler tubes and superheater tubes exposed to sulfur-bearing flue gases.
• Diesel engine valves and pistons requiring thermal barrier bond coats.
• Waste incineration plant components subject to high-temperature corrosion.

Packaging and Handling

SPA2Z offers this powder in standard industrial pack sizes to suit both trial quantities and production volumes. Available options include 5 kg tins, 10 kg tins, and 25 kg pails. All containers are sealed to protect powder integrity during storage and transit. Store in a cool, dry environment and avoid exposure to moisture to maintain free-flowing characteristics.

About SPA2Z — Your Source for MCrAlY Powder [-170+325]

SPA2Z supports industrial buyers, coating workshops, and maintenance teams in sourcing the right thermal spray powder for their application. We understand that coating performance depends on consistent powder chemistry, particle size distribution, and morphology. That is why we focus on connecting you with material that meets your process requirements—whether you run HVOF, plasma, or flame spray equipment.

When you enquire with SPA2Z, we help you clarify grade composition, confirm the mesh cut against your equipment parameters, and arrange pack sizes that match your consumption rate. Our goal is to make specification and procurement straightforward so you can focus on coating quality and production uptime.