Guide to Grade 23 Titanium for Medical Implants

1. ASTM F136 Compliance

Grade 23 must comply with ASTM F136 or ISO 5832-3.

2. ISO 13485

Supplier must operate under ISO 13485.

3. Surface Finish

Bearing surfaces Ra 鈮?0.1. Bone-contact Ra 0.5-2.0.

4. Cleanliness

Validated cleaning. Class 7 cleanroom packaging.

5. Post-Processing

DMLS implants need HIP and stress relief. Post-machine critical surfaces.