8K Mirror Finish Duplex 2205 Sheet for Pharmaceutical Bioreactor Vessels with Corrosion Resistance
Our 8K mirror finish duplex 2205 sheets combine high strength, excellent cleanability, and superior corrosion resistance specifically designed for pharmaceutical bioreactor internals.
Challenge: Austenitic 316L bioreactors have lower strength, requiring thicker walls, and may suffer pitting from cleaning agents containing chlorides.
Solution: Duplex 2205 provides higher strength (reducing wall thickness) and mirror finish prevents biofilm formation. It also resists pitting from acidic sanitizers.
| Parameter | Details |
|---|---|
| Grade | 2205, 2507 |
| Thickness | 1-5mm |
| Finish | 8K mirror, BA |
| Standard | ASTM A240M, ASME BPE (on request) |
- Bioreactor walls
- CIP spray balls
- Sanitary piping
- Fermenter baffles
The 8K mirror finish (Ra ≤0.1µm) minimizes bacterial adhesion. Duplex microstructure provides high yield strength (≥450 MPa) for pressure cycles.
For CIP with >200 ppm chlorides, choose 2205. For high-pressure steam cycles, 2507 is stronger. Ensure ASME BPE surface roughness certification.
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