TITANIUM ALLOY
Ti - 6AI - 2Sn - 4Zr - 6Mo
ASTM GRADE (UNS NO.)
(R56260)
Chemical Composition (wt. %)
(Max. values unless range is shown) 		0.04C; 0.04N; 0.15Fe; 0.5O; 5.5-6.5Al; 1.75-2.25Sn; 3.5-4.5Zr; 5.5-6.5Mo; 0.0125H
TENSILE PROPERTIES
Guar.R.T.
Min.(Dplx)
Typical Elevated Temp. Prop.
(Duplex Ann.)
315°C(600°F)
427°C(800°F)
538°C(1000°F)
Ultimate Strength
MPa (ksi)
1172 (170)
1103 (160)
1069 (155)
931 (135)
Yield Strength,
0.2% offset
MPa (ksi)
1103 (160)
896 (130)
862 (125)
724 (105)
Elongation in 51 mm
(2") gage length
(%)
10L, 8T
10
10
15
Reduction in Area -
Bar, Billet & Forging only
(%)
20L, 15T
30
30
30
OTHER MECHANICAL PROPERTIES
 

Stress to Rupture
in Time Shown

Stress
MPa (ksi)
 
758 (110)
Time-Hrs. at Temp. (°C)  
100 (482)
Stress & Time to
Produce Elongation
Shown (creep)
Stress
MPa (ksi)
 
690 (100)
483 (70)
276 (40)
Time-Hrs. at Temp. (°C)  
70 (315)
100 (427)
100 (482)
Creep
(%)
 
0.1
0.2
0.2
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
39 HRC
PHYSICAL PROPERTIES
  
Nominal Beta
Transus
°C (°F)
946 (1735)
Coefficient of
Thermal Expansion
10-6/°C
(10-6/°F) 		0-100°C (32 -212°F)

9.4 (5.2)
0-315°C (32-600°F)
10.3 (5.7)
0-538°C (32-1000°F)
10.4 (5.8)
0-648°C (32-1200°F)
10.4 (5.8)
0-816°C (32-1500°F)
10.6 (5.9)
Density
g/cm3 (lbs/in3)
4.65 (0.168)
Melting
Point,
Approx.
°C (°F)
1593 (2900) - 1677 (3050)
Electrical
Resistivity
@ R.T.
10-6 ohm·cm
(10-6 ohm·in)
200 (508)
Modulus of
Elasticity ­
Tension
GPa (103 ksi)
114 (16.5) Duplex Ann.
Modulus of
Elasticity ­
Torsion
GPa (103 ksi)
—
Thermal
Conductivity
W/m·°C (BTU/hr·ft·°F)
7.7 (4.4)
Specific
Heat
J/Kg·°C (BTU/lb·°F)
500 (0.12)
Weldability
Limited
Industry Specifications
AMS 4981B, MIL F - 83142A Comp 11 Frg Amin, MIL F - 8314 Comp 11 Frg ht, MIL T - 9047G