PWC88-22/53 - 88/12 WC-Co HVOF Thermal Spray Powder (22-53 micron)

Premium 88/12 Tungsten Carbide Cobalt Powder for HVOF Applications

The PWC88-22/53 is a high-performance thermal spray powder composed of 88% Tungsten Carbide and 12% Cobalt (WC-Co). This material is manufactured using an agglomerated and sintered process to ensure chemical homogeneity and structural integrity during the spray process. Specifically sized with a particle distribution of 22 to 53 micrometers (µm), this powder is engineered to optimize the performance of liquid fuel High Velocity Oxygen Fuel (HVOF) systems, particularly the industry-standard JP5000 and JP8000 torches. The precise sizing ensures consistent feeding and complete particle melting or semi-melting within the high-velocity gas stream, resulting in coatings of exceptional quality.

Coatings produced with this 88/12 WC-Co powder are renowned for their extreme hardness and density. They provide superior protection against various forms of wear, including abrasion, erosion, and fretting. The cobalt matrix binds the hard tungsten carbide particles effectively, offering a balance of toughness and wear resistance that makes it a preferred choice for demanding industrial environments. It serves as an excellent alternative to hard chrome plating, offering better wear properties and eliminating the environmental hazards associated with hexavalent chrome.

Common applications for this material span across the oil and gas, aerospace, paper, and general manufacturing industries. It is frequently used to coat gate valves, ball valves, pump housings, hydraulic rods, and steel rolls. The coating maintains its properties at service temperatures up to 900°F (482°C), making it suitable for mid-range temperature applications where wear resistance is critical. By utilizing the HVOF process, the coating achieves high bond strengths often exceeding 10,000 PSI, ensuring the overlay remains intact even under high mechanical stress.

Reliability in thermal spraying begins with the feedstock. This powder's morphology is designed for excellent flowability, preventing clogging in powder feeders and ensuring a steady, pulsation-free stream to the gun. This consistency is vital for achieving uniform coating thickness and surface finish, reducing the need for extensive post-coat grinding or finishing operations.