Mechanical finishing & post-processing · finish comparison
Honing vs Superfinishing and Isotropic Superfinishing
Honing and Superfinishing and Isotropic Superfinishing are both mechanical finishing finishes; superfinishing resists corrosion better.
Honing
Mechanical finishing · $$$
Honing precision-finishes bores with expanding abrasive stones and a controlled cross-hatch.
Superfinishing and Isotropic Superfinishing
Mechanical finishing · $$$$
Superfinishing removes grinding peaks from bearing and gear surfaces with very fine abrasive action.
When to choose which
Choose Honed
Choose Honed when a bore requires cross-hatch and geometric correction.
- Produces Ra about 0.1–0.8 µm (4–32 µin)
- Corrects bore roundness and straightness
- Creates oil-retaining cross-hatch
Choose Superfinishing
Choose Superfinishing when an external bearing journal needs isotropic low-friction texture.
- Produces Ra about 0.02–0.20 µm (0.8–8 µin)
- Reduces friction and break-in wear
- Removes directional grinding peaks
What the numbers say
- Superfinishing resists corrosion better.
- Honed is the lower-cost option ($$$).
Scores side by side
Each score is 0–100 against every finish in this catalog. Corrosion is derived from salt-spray test duration and surface hardness from the finish layer's Vickers hardness where a measured figure exists; a finish that leaves the base metal's own surface is not rated for hardness. Cosmetic, lubricity and cost are FabDigit's engineering assessment. Scores and typical figures are screening data, not matched side-by-side tests or service-life rankings; ASTM B117 is a controlled salt-fog method, not a field-life prediction.
| Score | Honed | Superfinishing |
|---|---|---|
| Corrosion resistance | 0 Minimal | 5 Minimal |
| Surface hardness / wear | — — | — — |
| Cosmetic quality | 25 Low | 65 Good |
| Lubricity | 45 Fair | 55 Good |
| Cost | 55 $$$ | 75 $$$$ |
Key numbers
| Property | Honed | Superfinishing |
|---|---|---|
| Thickness | 0 µm | 0 µm |
| Electrical | Unchanged | Unchanged |
| Relative cost | Premium ($$$) | High ($$$$) |
| Added lead time | 2–7 working days | 3–10 working days |
| RoHS | Compliant | Compliant |
| Instant quote | On request | On request |
Bold marks the side that is ahead on a row where more (or less, for cost and lead time) is better. Ranges are the typical specification window; the drawing call-out fixes the class.
Which materials take each finish
| Material family | Honed | Superfinishing |
|---|---|---|
| Stainless Steel | Yes | Yes |
| Steel | Yes | Yes |
| Aluminum | With care | Limited |
| Brass | With care | Limited |
| Copper Alloy | With care | Limited |
| Magnesium Alloy | With care | With care |
| Nickel Alloy | With care | With care |
| Titanium | With care | With care |
| Zinc Alloy | With care | With care |
Honed vs Superfinishing — frequently asked
What is the difference between Honed and Superfinishing?
Honing and Superfinishing and Isotropic Superfinishing are both mechanical finishing finishes; superfinishing resists corrosion better. Honed is the lower-cost option ($$$).
When should I use Honed instead of Superfinishing?
Choose Honed when a bore requires cross-hatch and geometric correction. Conversely: choose Superfinishing when an external bearing journal needs isotropic low-friction texture.
Is Honed or Superfinishing cheaper?
Honed is the lower-cost finish ($$$ against $$$$ for Superfinishing) among the finishes FabDigit quotes. Both are priced per part with a lot minimum; the exact figure appears on the instant quote once the part is uploaded.