TITANIUM ALLOY
Ti - 6Al - 7Nb
ASTM GRADE (UNS NO.)
Chemical Composition (wt. %)
(Max. values unless range is shown) 		0.08C; 0.05N; 0.20O; 0.25Fe; 5.5-6.5Al; 6.5-7.5Nb; 0.50Ta; 0.009H
TENSILE PROPERTIES
Guar. R.T. Min.* (Ann.)
Typical R.T. Annealed Properties*
6.3-19mm dia.
19-71mm dia.
Ultimate Strength
MPa (ksi)
900 (130.5)
1021 (148)
979 (142)
Yield Strength,
0.2% offset
MPa (ksi)
800 (116)
910 (132)
883 (128)
Elongation in 51 mm
(2") gage length
(%)
10
15
14
Reduction in Area -
Bar, Billet & Forging only
(%)
25
42
41
OTHER MECHANICAL PROPERTIES
* Bar Product Only

Stress to Rupture
in Time Shown

Stress
MPa (ksi)
—
Time-Hrs. at Temp. (°C)
—
Stress & Time to
Produce Elongation
Shown (creep)
Stress
MPa (ksi)
—
Time-Hrs. at Temp. (°C)
—
Creep
(%)
—
Charpy V-Notch
Impact @ R.T.
Joules
(ft-lbs)
—
Bend Radius Under 1.78 mm (0.070") thick
—
1.78 mm (0.070") and over
—
Welded Bend Radius
—
Nominal Hardness
—
PHYSICAL PROPERTIES
  
Nominal Beta
Transus
°C (°F)
1010 (1850)
Coefficient of
Thermal Expansion
10-6/°C
(10-6/°F) 		0-100°C (32 -212°F)

N/A
0-315°C (32-600°F)
—
0-538°C (32-1000°F)
—
0-648°C (32-1200°F)
—
0-816°C (32-1500°F)
—
Density
g/cm3 (lbs/in3)
4.52 (0.163)
Melting
Point,
Approx.
°C (°F)
N/A
Electrical
Resistivity
@ R.T.
10-6 ohm·cm
(10-6 ohm·in)
—
Modulus of
Elasticity ­
Tension
GPa (103 ksi)
105 (15.2)
Modulus of
Elasticity ­
Torsion
GPa (103 ksi)
N/A
Thermal
Conductivity
W/m·°C (BTU/hr·ft·°F)
—
Specific
Heat
J/Kg·°C (BTU/lb·°F)
—
Weldability
Good
Industry Specifications

Medical Implant Alloy
ASTM - F1295