Stainless Steel Thermal Spray Coatings

Thermal spray coating is a process where molten or semi-molten materials are sprayed onto a surface to form a protective layer. Technologies include HVOF, plasma spray, and metallizing, each offering distinct properties. These coatings enhance surface hardness, wear resistance, and corrosion resistance without significantly altering the base component's mechanical properties.

Common protective sprays for stainless steel include HVOF-applied tungsten carbide and nickel chrome boron coatings. For industrial components, Parkway-Kew offers PK-62 nickel chrome and PK-730 tungsten carbide coatings, which provide robust protection against wear, abrasion, and corrosion in demanding environments like oil and gas and wire drawing operations.

Parkway-Kew employs HVOF (High Velocity Oxy-Fuel) spray exceeding Mach 2, plasma spray, metallizing, submerged arc welding, and fuse welding. Each technology is selected based on the component's application, required hardness, and environmental demands, ensuring the highest bond strength and coating performance for every job.

Yes. Parkway-Kew's proprietary Restore and Grind process fills and blends only the worn drawline area of a component, allowing 5-7 lower-cost repairs before a full recoat is necessary. This significantly extends component life, reduces materials costs, and minimizes production downtime across wire drawing and industrial applications.

Industries with high-wear and corrosive operating conditions benefit most, including oil and gas, wire drawing and manufacturing, shipping and material handling, and heavy equipment manufacturing. These coatings extend the service life of components such as plungers, wire drawing blocks, capstans, rope pulleys, and festoon wheels across all these sectors.

HVOF (High Velocity Oxy-Fuel) thermal spray propels coating materials at speeds exceeding Mach 2, producing extremely dense, well-bonded coatings with low porosity. It is preferred for hard surfacing because it delivers superior hardness, wear resistance, and adhesion compared to conventional spray methods, making it ideal for demanding components in wire drawing and oil and gas applications.