Technical Data Overview
Ti 3Al/2.5V alloy, also known as "half-6-4," is a near alpha, alpha-beta titanium alloy. It offers 20 to 50% higher tensile strength than commercially pure titanium at both room and elevated temperatures. The alloy is more amenable to cold working compared to Ti 6Al/4V, allowing for 75 to 85% cold work, resulting in moderately high strength and good ductility. It is weldable and exhibits excellent resistance to torsion and corrosion.

Applications
This alloy is primarily used in aircraft hydraulic systems and as foil in aircraft honeycomb panels. Other applications include aerospace parts, sports equipment, medical and dental implants.

Industries Using This Grade
- Chemical Processes
- Medical
- Aerospace
- Automotive

Typical Applications
- Architecture
- Medical
- Marine
- Processing & Chlorate Manufacturing
- Dimensional Stable Anodes
- Desalination Plants

Physical Properties (Room Temperature)
- Specific Heat: 427 J.kg^-1.°K^-1
- Thermal Conductivity: 7.6 W.m^-1.°K^-1
- Thermal Expansion: 7.9 mm/m/°C
- Modulus of Elasticity: 107 GPa
- Electrical Resistivity: 12.6 µohm/cm
- Density: 4.48 g/cm³

Chemical Composition (% by weight)
- Al: 2.5 - 3.5
- C: max 0.05
- Fe: max 0.3
- H: max 0.013
- N: max 0.020
- O: max 0.120
- Ti: Balance
- V: 2 - 3
- Y: max 0.005

Available Tube Product Forms
- Straight
- Seamless

Typical Manufacturing Specifications
- AMS 4943
- AMS 4944
- AMS 4945
- AMS 4946
- ASTM B338
Also includes individual customer specifications.

Mechanical Properties
Annealed
- Tensile Rm: 90 ksi (min) / 620 MPa (min)
- Yield R.p. 0.2%: 70 ksi (min) / 485 MPa (min)
- Elongation (2” or 4D gl): 15% (min)
CWSR
- Tensile Rm: 125 ksi (min) / 860 MPa (min)
- Yield R.p. 0.2%: 105 ksi (min) / 725 MPa (min)
- Elongation (2” or 4D gl): 10% (min)