Boronized Tubing for Erosion and Corrosion Resistance

Boronized tubing is metal tubing that has undergone a thermal diffusion process to infuse boron into its surface. This creates an extremely hard protective layer that helps resist erosion, abrasion, wear, and corrosion. For industrial systems exposed to abrasive flow or aggressive media, boronized tubing can extend service life and reduce maintenance-driven downtime.

Boronizing, also called boriding, is a high-temperature diffusion treatment that introduces boron into metal surfaces. The boron reacts with the base metal to form a hard boride layer rather than a simple surface coating. VaporKote’s process can achieve RC75+ equivalency, approximately 1500 Knoop hardness, giving components strong resistance against erosion and abrasive wear.

Erosion resistance comes from the ultra-hard boride layer formed during thermal diffusion. Because the treated surface is significantly harder than many abrasive media, it helps prevent material loss caused by high-velocity particles, slurry, or process flow. This protection is especially valuable in pumping, refining, mining, petrochemical, and other severe-duty industrial systems.

Yes. Boronizing is primarily known for wear and erosion protection, but VaporKote’s boronized components are also used where long-lasting protection against erosion and corrosion is required. The diffusion-formed surface layer improves durability in aggressive environments, helping critical parts outperform many untreated materials and conventional surface treatments.

Boronized tubing is useful in industries where components face abrasive media, chemical exposure, and costly downtime. VaporKote serves sectors such as oil production, petrochemical refining, mining, aerospace, pulp and paper, heat exchanger manufacturing, agriculture, and general manufacturing. Applications are evaluated based on material, service conditions, erosion risk, and corrosion exposure.

VaporKote’s boronizing process can produce a surface hardness equivalent to RC75+ and approximately 1500 Knoop hardness. That is harder than tungsten carbide cutting tools and far harder than many materials commonly handled in industrial processes. This exceptional hardness helps tubing and components resist abrasive wear in demanding operating environments.

Yes. VaporKote provides engineering support to review application details such as base metal, dimensions, temperature exposure, flow media, wear mechanism, corrosion risk, and performance expectations. This evaluation helps determine whether boronizing is the right protection method and whether additional machining, heat treatment, or diffusion coating considerations are needed.

VaporKote adheres to ASTM, ASME, SAE, API, and other engineering codes and practices where applicable. The company also provides metallurgical analysis and certification of diffusion coatings. These practices help customers verify that treated tubing and related components are processed with appropriate technical control for demanding industrial applications.