12K mirror-finished stainless steel coil is the ultimate grade of polished stainless steel, offering near-perfect optical clarity and reflectivity that surpasses 10K standards. The “12K” rating denotes an extreme polishing level achieved through advanced multi-stage mechanical buffing with ultra-fine abrasives (down to nano-scale) and specialized compounds, resulting in a surface roughness (Ra) below 0.008 µm and reflectance exceeding 98% – comparable to a high-quality glass mirror. This meticulous process eliminates all microscopic defects, including pitting, orange peel, and haze, delivering a flawlessly brilliant, distortion-free reflection.
| Product Name | Test Item | 12K | Remarks |
|---|---|---|---|
| 12K Mirror Stainless Steel | Glossiness (GU) | 675-688 | 60° |
| Reflectance (REF) | 68-70 | 60° |
