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Biodur® 108 is a nickel-free austenitic stainless steel which exhibits good toughness and mechanical properties, fatigue properties and corrosion resistance superior to those of Stainless Steel 316L.
Substituting the Nickel content for Manganese allows it to maintain its fully austenitic microstructure in all conditions, the Pressure-ESR remelting process ensures a fine and clean microstructure. This steel is free of all delta-ferrite and is non-magnetic, satisfying the requirements for ASTM F138.
Applications
Bone surgery implants
Joint replacement prostheses and implants
Medical, surgical and dental instruments
Typical Chemical Composition
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | N | Fe | |
| Min | 21.00 | 19.00 | 0.50 | ||||||||
| Max | 0.08 | 0.75 | 24.00 | 0.030 | 0.010 | 23.00 | 1.50 | 0.10 | 0.25 | 0.25 | Balance |
Typical Mechanical Properties
| Form | Tensile (Rm) Mpa |
Yield (R0.2%) MPA |
Elongation A4d (%) |
| Bars - Annealed | 970 | 600 | ≤48 |
| Wire - cold drawn | 970-2200 | 600-1800 | 38 |
Specifications
UNS S29108
ASTM F138
ASTM F2229 (Implant Quality)
Availability
Biodur® 108 is available in precision ground round bar from 1.0mm diameter up to 60.0mm diameter
Disclaimer : Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
