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Titanium Grade 9 • Ti 3Al/2.5V

Ti Grade 9 is a near alpha, alpha-beta alloy, sometimes referred to as “half-6-4.” It offers 20 to 50% higher tensile strength than the commercially pure titanium at room and elevated temperatures. It is much more amenable to cold working than Ti 6AI/4V alloy and can be cold worked 75 to 85% to result in moderately high strength and good ductility

The alloy can be formed from the annealed temper. Severe forming may be aided by an intermediate stress relief. Stress relieving may be appropriate after severe cold forming to remove residual stresses. Weldability and corrosion resistance is very similar to commercially pure titanium. Welding should be performed with inert gas shielded arc or spot welding.Welding with active gases, coatings, or fluxes must be avoided to prevent embrittlement.

Available product forms
  • Strip
  • Foil
Typical manufacturing specifications
  • ASTM B265
  • AMS 4989
  • Also individual customer specifications.
Typical Applications
  • Implantable medical devices
  • Aeropace
  • Industrial
  • Chemical

Mechanical Properties
Titanium Grade 9 MECHANICAL PROPERTIES
Temper Annealed
Tensile strength Rm
620 MPa (min)
Yield strength Rp 0.2
483 MPa (min)
Elongation A50
15 % (min)


Physical Properties
Titanium Grade 9 PHYSICAL PROPERTIES (At 20°C)
Specific Heat (0-100°C) 427 J/(kg*K)
Thermal Conductivity 7.6 W/(m*K)
Coef. of Thermal Expansion 7.9 mm/m/°C
Modulus of Elasticity 107 GPa
Electrical Resistivity 12.6 µohm/cm
Density 4.48 g/cm3


Available Dimensions
AVAILABLE DIMENSIONS (Millimeters)
Thickness (mm) 100mm Wide 200mm Wide 300mm Wide
0.0015 to 0.012 ±5% - -
0.012 to 0.025 ±5% ±0.0010 ±0.0013
0.025 to 0.10 ±0.0013 ±0.0015 ±0.0019
0.10 to 0.25 ±0.0025 ±0.0025 ±0.0030
0.25 to 0.50 ±0.0038 ±0.0051 ±0.0064
0.50 to 1.0 ±0.0051 ±0.0089 ±0.0127

Tolerances in percent or mm. Tolerances may vary depending on alloy being rolled..
The table above outline typical thickness tolerances available from HPM, which are tighter than industry standards.


Chemical Composion
CHEMICAL COMPOSION (% by weight)
Element Min Max
Ti Balance
Al 2.5 3.5
V 2.0 3.0
C - 0.08
O - 0.15
N - 0.03
H - 0.015
H - 0.015
Fe - 0.25
Others each 0.1
Others total 0.4