BioDur® 734 Stainless

BioDur 734 stainless is a nitrogen-strengthened, austenitic stainless steel. The alloy exhibits improved tensile strength, impact strength, fatigue strength, and crevice and putting corrosion resistance over standard BioDur 316LS. The microstructural integrity and cleanness of this alloy is insured through electro-slag re-melting (ESR). The alloy is non-magnetic and is essentially free of ferrite.

The chemistry of BioDur 734 is considered a low cobalt material, meeting the recently implemented EU MDR regulatory labeling threshold of a max weight of 0.10% cobalt. Insofar, devices made from this alloy should not need to be labeled as containing a potential CMR (Carcinogenic, Mutagenic and Reprotoxin) element.

Key applications include implantable orthopaedic components, such as; bone plates, bone screws, and hip and knee components. These components are typically fabricated by forging and machining.