Official Answer
Answer
Medical devices often require biocompatibility and resistance to sterilization processes like autoclaving or chemical wipe-downs. 302 Stainless Steel (per ASTM A313) provides excellent corrosion resistance and can be cold-worked to high tensile strengths (up to 250 ksi for small diameters). Unlike carbon steel, it does not require a secondary plating (like zinc or chrome), which could flake off and contaminate a sterile field. Furthermore, 302 is non-magnetic in the annealed state and only slightly magnetic after cold working, making it suitable for certain MRI-adjacent equipment where carbon steel rings would cause image artifacts or be physically pulled by the magnetic field.
