Whatever your surface finish requirements, AST is the one stop shop. New or used, your place or ours, we’ll finish the job in time for you to do yours.
Surface Finish Specification
| Grit# | Ra Microinch Mechanical Polish | Ra Microinch Electropolish |
|---|---|---|
| 60 | 80-140 | 60-130 |
| 80 | 50-75 | 30-65 |
| 120 | 35-45 | 20-40 |
| 150 | 25-40 | 15-35 |
| 180 | 20-30 | 10-25 |
| 240 | 15-25 | 8-20 |
| 320 | 10-20 | 5-18 |
| 400 | <10 | 5-10 |
| 500 | <7 | 3-7 |
Note: The chart above is to be used for reference only. Material and processes can and will affect results.