If your only question is price, stainless mirror finish is usually one of the more expensive surface options. It typically costs more than 2B, more than standard BA, and more than a No.4 brushed finish because the polishing route is slower, more labor-intensive, and more sensitive to defects in the base material.
Typical Cost Ranking
| Finish | Relative cost | Why |
|---|---|---|
| 2B | Lowest | Standard mill finish with minimal post-processing. |
| No.4 | Medium | Requires brushing and a controlled directional finish. |
| BA | Medium to medium-high | Bright annealed finish is cleaner and more reflective than 2B. |
| Mirror finish | Highest in most cases | Requires multiple polishing steps, inspection, and surface protection. |
Why Mirror Finish Costs More
- More polishing passes and more labor time per sheet or coil.
- Higher dependence on a clean, defect-free base surface before polishing starts.
- Greater reject risk because scratches, waviness, and pits are easier to see.
- Extra packaging and protection film requirements to preserve the final appearance.
What Changes the Price the Most
The real price gap depends on grade, thickness, width, final reflectivity target, one-side or two-side polishing, and total order size. A mirror finish on 201 and 304 is not always priced the same, and a decorative interior panel order is not quoted the same way as architectural cladding or elevator panels.
When the Mirror Premium Is Worth Paying
Mirror finish makes the most sense when appearance is a selling point or when easy cleanability and visual reflection matter, such as decorative panels, retail fit-out, elevator interiors, signage, or premium appliance surfaces. If appearance is secondary, buyers often save money by choosing BA or No.4 instead.
How to Ask for a Better Quote
- State grade, thickness, and finish side clearly.
- Confirm whether the order needs mirror polish on one side or both sides.
- Mention if protective film, edge treatment, or cut-to-size service is required.
- Ask for the reflectivity expectation instead of using only the word 'mirror'.
The cheapest finish is usually 2B. The most visually demanding finish is usually mirror. Buyers who compare surface quality, handling protection, and reject risk alongside the price get a more realistic cost picture.