Description

Ti6Al7Nb Round Bar This Ti-6Al-7Nb (UNS designation R56700) is an alpha-beta titanium alloy first synthesized in 1977. It features high strength and has similar properties as the cytotoxic vanadium containing alloy Ti-6Al-4V. Ti-6Al-7Nb is used as a material for hip protheses.[1] Ti―6Al―7Nb is one of the titanium alloys that built of hexagonal α phase (stabilised with aluminium) and regular body-centred phase β (stabilised with niobium). The alloy is characterized by added advantageous mechanical properties, it has higher corrosion resistance and biotolerance in relation to Ti-6Al-V alloys Mechanical properties of the alloy are mostly dependent on the morphology and the fractions volume of the phases presence from the parameters obtained from the manufacturing process. Property Minimum Value Maximum Value Unit Density 4.51 4.53 g/cm3 Hardness 2700 2900 Mpa Melting point 1800 1860 K Specific heat 540 560 J/kg*K Elastic limit 895 905 MPa Energy content 750 1250 MJ/kg Latent heat of fusion 360 370 kJ/kg The composition of Ti6Al7Nb. Content Al 5.5-6.5% Nb 6.5-7.5% Ta <0.50% Fe <0.25% N2 <0.05% O2 <0.20% C <0.08% H2 <0.009% Ti Balance