Tungsten Carbide Cobalt Powder [-325+400]

WC-Co Powder for Wear-Resistant Thermal Spray Coatings

Tungsten Carbide Cobalt powders are the industry standard for dense, wear-resistant coatings applied via HVOF and related thermal spray processes. The -325+400 mesh cut (approximately 38–44 µm) is widely specified for HVOF spraying because it provides an optimal balance of particle melting, velocity, and deposition efficiency. Coatings produced from this powder typically exhibit high microhardness, strong bond strength, and low oxide content when sprayed with properly tuned parameters.

This powder is suitable for components exposed to severe sliding wear, abrasive media, and particle erosion. Common applications include pump sleeves, compressor rods, hydraulic rams, turbine components, and industrial rolls. The cobalt matrix provides toughness, while the tungsten carbide hard phase delivers the wear resistance that extends component life in harsh environments.

Selecting the Right Thermal Spray Powder Grade

Powder performance depends on chemistry, particle size distribution, morphology, and process compatibility. The -325+400 mesh cut is a standard HVOF grade, but other cuts and cobalt percentages are available for specific applications. Key selection factors include:

• Mesh cut and particle size:Finer cuts suit plasma spray; coarser cuts may be used in flame spray or specialized HVOF guns.
• Cobalt content: Typical WC-Co grades range from 12% to 17% cobalt. Higher cobalt improves toughness; lower cobalt increases hardness.
• Powder morphology: Agglomerated and sintered powders flow well and melt consistently. Other morphologies may suit specific gun types.
• Process compatibility: Confirm that the powder grade matches your spray equipment (HVOF, plasma, flame) and parameter window.

SPA2Z helps buyers verify grade compatibility and can supply supporting documentation including particle size analysis and chemistry certificates. Contact us with your target hardness, spray process, and substrate material for a tailored recommendation.

About SPA2Z — Tungsten Carbide Cobalt Powder Supply

SPA2Z supports industrial coating operations with reliable access to thermal spray consumables, including Tungsten Carbide Cobalt Powder in the -325+400 mesh cut. We work with surface preparation contractors, maintenance teams, and thermal spray job shops who need consistent powder quality and responsive commercial support.

When you enquire with SPA2Z, you can expect:

• Grade confirmation and mesh cut verification for your spray process
• Pack size options (5 kg tin, 10 kg tin, 25 kg pail) with competitive quotation
• Supporting documentation including particle size distribution and chemistry data
• Assistance with process compatibility for HVOF, plasma, or flame spray

Whether you are qualifying a new powder source or topping up production inventory, SPA2Z is ready to provide a quotation and technical support for your Tungsten Carbide Cobalt Powder requirements.