Many pharmaceutical and biotech applications require that product-contact surfaces be electropolished. Therefore, the ability to provide a high-quality electropolished surface is an important material property. 2205 duplex stainless steel can be electropolished to a finish of 0.38 microns or better, a finish that meets or exceeds ASME BPE standard surface finish requirements for electropolished surfaces. Although 2205 duplex stainless steel can easily meet the surface finish requirements of the pharmaceutical and biotech industries, the electropolished 2205 stainless steel surface is not as bright as the electropolished 316L stainless steel surface. This difference is due to the slightly higher metal dissolution rate of the ferrite phase compared to the austenite phase during electropolishing. Surface | Polishing Tube | Tubes Roughness Review | Bright Annealing Tubes | China USA Roughness Standard | EDM | EDM Roughness Comparator | Post Weld Cleaning | Cleaning of Tubes | Cleaning methods | Roughness Conversion Chart | Tube Surface Finish Types | Care Maintenance Stainless Steel | British American Standards For Tolerances Surface Finish Testing | Surface Finish Notes | Surface Texture Parameters | Measuring Surface Finish | Surface Finish…

Electroless nickel plating of stainless steel parts (drive shafts, meshing parts, moving parts, etc.) can improve the uniformity and self-lubricity of the plating, which is better than chromium plating. However, electroless nickel plating on stainless steel often results in unsatisfactory bonding between the plating layer and the substrate due to poor pretreatment, which has become an urgent problem in actual production. The original process: mechanical polishing→organic solvent degreasing→chemical degreasing→hot water washing→electrochemical degreasing→hot water washing→cold water washing→30%HCl→cold water washing→20%HCl(50℃)→cold water washing→flash plating Nickel → electroless nickel plating. Disadvantages of the original process: the effect of using HCL alone to remove the oxide scale is not good; the flash nickel plating of complicated shapes affects the uniformity of electroless nickel plating due to poor coverage; the longer process may cause the fresh surface of stainless steel to be re-oxidized. Film; flash nickel plating solution is easy to pollute chemical nickel plating solution,…

Technical Articles about stainless steel tubes surface： Surface Catagory Difference between AP Tube and BA Tube BA Tubes Bright Annealing Stainless Steel Tubing China USA Roughness Standard Comparison Surface Roughness Conversion Chart of Stainless Steel Tube Surface Hardening of Austenitic Stainless Steel with Nitrogen Mechanical Polished Brushed and Buffed Stainless Steel Patterned Stainless Steel Finishes and Application Coloured Stainless Steel Finishes and Application Case Hardening Stainless Steel Surface Use Kolsterising Surface Roughness Chart Surface Finish Degree Comparison Table between Rz Ra RMS ISO 1302 DIN 4768 Comparison of Surface Roughness Values Rouging of Stainless Steel in High Purity Water System Iron Contamination and Rust Staining on Stainless Stee Avoiding Iron and Stainless Steel Contamination Testing for Iron and Stainless Steel Contamination Removing Iron and Stainless Steel Contamination Terne Coated Finishes on Stainless Steel Surface Finish for Stainless Steel Sheet Plate Coil Strip Heat temper colours on stainless steel surfaces heated…