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Bright Annealed Stainless Steel Sheet (BA Finish)
BA (Bright Annealed) Stainless Steel Sheets feature a highly reflective, mirror-like finish achieved through heat treatment in a controlled atmosphere. Offering excellent smoothness and easy cleaning, it is widely used in home appliances and commercial kitchenware.
High Performance
Industrial Material
Industrial Material
Why Choose BA Finish Stainless Steel?
If your project requires a highly reflective, clean appearance but is constrained by budget, the BA (Bright Annealed) finish is the perfect alternative to true mirror finishes. It provides a glossy, reflective surface at a more economical price point. Additionally, its high surface smoothness makes it highly resistant to dirt and exceptionally easy to clean.
BA Finish vs. Mirror No.8 Finish
- BA Finish: The shine is produced during the annealing process in a protective gas atmosphere. The surface is "bright and reflective," but the reflection might lack 100% optical clarity (slight cloudiness).
- Mirror No.8 Finish: The shine is achieved through extensive mechanical polishing. The surface provides a "deep and sharp" reflection, identical to a real glass mirror (Higher cost than BA).
Technical Specifications
Standard: ASTM A240 / JIS G4305
Available Grades: 304, 304L, 430
Surface Finish: BA (Bright Annealed / Highly Reflective)
Typical Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (Hv) |
|---|---|---|---|---|
| 304 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 200 |
| 430 | ≥ 450 | ≥ 205 | ≥ 22 | ≤ 200 |
Standard Stock Sizes: BA Finish
| Thickness (mm) | 4' x 8' (1219x2438mm) | Surface Protection |
|---|---|---|
| 0.4 - 0.7 | ✓ | PVC Film Coated |
| 0.8 - 1.0 | ✓ | PVC Film Coated |
| 1.2 - 1.5 | ✓ | PVC Film Coated |
| 2.0 | ✓ | Consult Sales |
✓ = In Stock | Primary stock available in Grades 304 & 430
Common Applications
- Home appliance exteriors (e.g., refrigerators, washing machines, rice cookers).
- Commercial kitchen equipment, medical instruments, and food trays.
- Automotive trim components and exhaust systems.
- Interior decoration where extreme mirror clarity is not required.
Frequently Asked Questions (FAQ)
Yes, in many cases such as high-elevation installations, machine parts, or appliances. However, for luxury interior designs where a sharp, distortion-free reflection is required, Mirror No.8 is highly recommended.
Grade 430 BA is excellent and cost-effective for indoor use. It offers a beautiful shine and is magnetic, making it popular for refrigerator doors. However, we do not recommend it for outdoor or high-moisture environments, as it has a lower corrosion resistance compared to Grade 304.
