instrument and implant grade metal alloys

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Titanium Alloy 6Al-7Nb (9.9367) Medical Alloy

Titanium Alloy 6Al-7Nb is a vacuum-arc-melted and remelted alloy used extensively in the medical, surgical and dental industries for implants, joint replacements and prostheses. It is chemically similar to Titanium Grade 5 ELI, except that the Niobum (Nb) replaces Vanadium as one of the main alloying elements. The use of Vanadium makes 6Al-7Nb totally biocompatible and allergy-free and exhibits better corrosion resistance than that of 6Al-4V ELI.

Like 6Al-4V ELI, the contents of the interstitial elements Carbon, Oxygen, Nitrogen and Hydrogen are closely controlled and kept low. This close control improves the impact resistance, toughness, deformation capability and machinability.


Spinal devices
Screws and wires
Fracture fixtion plates
Total joint replacements

Typical Chemical Composition

C Al Nb Fe Ta O N H Ti
Min 5.50 6.50
Max 0.08 6.50 7.50 0.25 0.50 0.05 0.009 0.50 Balance

Typical Mechanical Properties

Spec Tensile (Rm) MPA (min) Yield (R0.2%) MPA (min) Elongation A4d (%- min) Hardness HRC
ASTM / ISO 900 795 10 36


EN TiAl6Nb7
ISO 5832-11
ASTM F1295
UNS R56760


Titanium Alloy 6Al-7Nb (9.9367) is readily available in precision ground bar and starting from 1.5mm diameter up to 50mm.

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.

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NOTE: Weights calculated are theoretical. Manufacturing tolerances should be allowed for and results adjusted accordingly.