Stainless Steel 304
Common material for this finish.
View materialSurface Finishing
Electropolishing
Electropolishing is an electrochemical process that removes a thin layer of metal, preferentially from microscopic peaks. The result is a smoother, brighter, cleaner surface with improved corrosion resistance, mainly used on stainless steel.
Specification
Typical options
| Attribute | Typical behavior | Notes |
|---|---|---|
| Material removal | ~2.5–25 µm (0.0001–0.001 in) | Controlled by time and current |
| Surface | Bright, smooth, micro-deburred | Reduces Ra; final value depends on starting surface |
| Corrosion | Improved passive layer | Often replaces or follows passivation |
| Common spec | ASTM B912 | For stainless steel |
Typical industry ranges for reference. Final thickness, color, and specification are confirmed on your quote and drawing.
Design Tips
What to specify on your drawing
Dimensional allowance
Plan for uniform material removal on critical dimensions.
Starting finish
Electropolishing smooths but does not remove deep scratches or tool marks.
Deburring
Removes micro-burrs, useful for small and internal features.
Cleanliness
Common for food, pharma, and vacuum hardware.
Compatible Materials
Materials often paired with this finish
Stainless Steel 316
Common material for this finish.
View materialStainless Steel 17-4 PH
Common material for this finish.
View materialSurface Finishing Service
See all finishing and post-processing options.
View serviceAdd a Finish
Include finish requirements with your RFQ.
Note the finish, specification, color, thickness, and masked areas on your drawing so the quote reflects them.