Material Finishing

Material Finishing for Stainless Steel Tube and Pipe

To achieve product purity, promote worker safety and satisfy aesthetics requirements, A&B Process Systems provides interior and exterior pipe polishing, tube polishing, plate polishing and square tube polishing. Our proprietary industrial and sanitary material finishing capabilities enable us to polish the interiors of piping and tubing with large diameters up 12 OD.

To finish and polish, A&B Process Systems uses chemical, mechanical and electropolishing treatments to ensure strict adherence to 3-A standards, if required. Our mechanical treatments typically use 120, 150, or 180/220 grit to achieve an optimal level of smoothness. Our chemical treatments, which remove surface scale and other discolorations, are mixtures of aqueous solutions of nitric acid and hydrofluoric acid or a solution of citric acid. For high purity requirements, we offer our proven electropolishing expertise.

Our advanced interior polishing capabilities:

  • minimize the number of sites for microbial growth
  • reduce turbulence in the fluid flow
  • minimize adherence of particulate matter to the surface
  • allow for more efficient and reproducible cleaning and disinfection

Contact A&B Process Systems to obtain our “Surface Finish Cross Reference Chart” that conveniently displays the range of surface conditions we can achieve. This chart tabulates grit numbers Ra and Rmax values for various USA finishes, ISO numbers and ASTM and Japanese standards.