Logam Kepingan Tahan Karat Digilap
Polished stainless sheet metal includes multiple surface types such as 2B, BA, disikat (No.4/HL), and mirror (8K) selesai. Antaranya, 2B is the most common base surface used for further processing.
- Penerangan
Polished stainless sheet metal refers to stainless steel sheets that have undergone surface finishing processes to achieve smooth, reflektif, or semi-reflective appearances. These finishes are widely used in architecture, peralatan, lif, and decorative applications where surface quality and appearance are important.
Polished stainless steel is not a single surface type, but a group of different finishing levels ranging from matte industrial surfaces to high-gloss mirror finishes.
Common Surface Finishes of Stainless Steel Sheet
Stainless steel sheets can be produced or processed into several standard surface types:
1. 2B Selesai (Most Common Industrial Surface)
| Ciri | Penerangan |
|---|---|
| Jenis Permukaan | Digulung sejuk, matte finish |
| Penampilan | Smooth but non-reflective |
| Reflektif | rendah |
| Permohonan | Industrial and general fabrication |
2B is the most widely used base finish for stainless steel sheets.
2. BA Selesai (Cerah Annealed)
| Ciri | Penerangan |
|---|---|
| Jenis Permukaan | Bright heat-treated surface |
| Penampilan | Semi-gloss reflective |
| Reflektif | Sederhana |
| Permohonan | Perkakas, panel hiasan |
BA surface is already brighter than 2B.
3. Kemasan Berus No.4
| Ciri | Penerangan |
|---|---|
| Jenis Permukaan | Linear brushed texture |
| Penampilan | Satin, directional grain |
| Reflektif | Rendah hingga sederhana |
| Permohonan | Lif, hiasan dalaman |
4. Cermin Selesai (8K Polished)
| Ciri | Penerangan |
|---|---|
| Jenis Permukaan | High mechanical polishing |
| Penampilan | Highly reflective like a mirror |
| Reflektif | Sangat tinggi |
| Permohonan | Hiasan mewah, seni bina |
5. Penamat Garis Rambut (HL)
| Ciri | Penerangan |
|---|---|
| Jenis Permukaan | Long linear brushing |
| Penampilan | Fine directional lines |
| Reflektif | Sederhana |
| Permohonan | Modern interior design |
Can 2B Stainless Steel Be Polished into Mirror Finish?
Yes — 2B stainless steel sheet can be polished into a mirror or polished surface, and this is a very common industrial process.
Why 2B Is Often Used as a Base Material
- Smooth and uniform surface from cold rolling
- Good thickness consistency
- Free from heavy texture or deep scratches
- Easy to further process (menggilap, memberus gigi, salutan)
Kerana sifat-sifat ini, 2B is widely used as the starting surface for polished stainless steel products.
Polishing Process from 2B to Mirror Finish
Langkah 1: Pembersihan Permukaan
- Remove oil, dust, and impurities
- Ensure uniform base surface
Langkah 2: Mechanical Grinding
| Stage | Fungsi |
|---|---|
| Coarse grinding | Removes surface defects |
| Medium grinding | Smooths surface irregularities |
| Fine grinding | Prepares for polishing |
Langkah 3: Penggilapan Halus
- Uses polishing wheels and compounds
- Gradually increases surface reflectivity
- Eliminates grinding marks
Langkah 4: Penamat Cermin (8K Level)
- Ultra-fine polishing process
- Produces high reflectivity surface
- Achieves mirror-like appearance
Important Notes About 2B Polishing
Although 2B can be polished into a mirror finish:
- Final quality depends on base steel quality
- Low-grade 2B may show defects after polishing
- Higher quality 2B (kerataan yang baik) gives better mirror results
- Not all 2B sheets are suitable for high-end mirror finishing
Comparison of Surface Finishes
| Permukaan | Reflektif | Keupayaan Memproses |
|---|---|---|
| 2B | rendah | Excellent base material |
| BA | Sederhana | Decorative use |
| Disikat | Sederhana | Scratch-hiding finish |
| Cermin (8K) | Sangat tinggi | High-end decorative use |
Applications of Polished Stainless Sheet Metal
Polished stainless steel sheets are widely used in:
- Bahagian dalam dan pintu lif
- Hiasan lobi hotel
- Architectural wall panels
- Permukaan peralatan dapur
- Luxury retail displays
- Furniture decorative panels
- Signage and branding systems
