Surface Hairline
Hairline Stainless Steel Finish
Hairline is a long, fine directional polish used for architectural and interior surfaces where a continuous linear grain and restrained reflectivity are required.
Appearance
- Fine, continuous parallel lines with lower visual texture than a typical No.4 finish.
Production route
- Surface leveling
- Long-belt abrasive polishing
- Cleaning and inspection under directional light
- Protective film application
Typical uses
- Interior wall panels
- Door and elevator trim
- Shopfitting
- Decorative profiles
Purchase-order checks
- Reference sample
- Grain direction on drawings
- Panel-to-panel tone control
- Bend and weld sequence
- Film marking and identification
Protection and acceptance
- Mark grain direction on every panel and drawing
- Use an agreed finish sample and viewing direction
- Specify film, bend sequence and visible-face handling before fabrication
Common defects to control
- Grain-direction mismatch
- Start-stop polishing bands
- Shade variation across adjacent panels
Example purchase description
- 316L stainless sheet, 1.0 x 1500 x 3000 mm, hairline one side to approved sample, grain along 3000 mm, PVC film and batch-matched visible panels.
Technical content updated: 2026-07-29
Organizational author: Tsingshan (Shandong) Iron & Steel Co., Ltd..Review method, status and limitations.
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