Ti 6Al 6V 2Sn

ASTM Grade (UNS No.) 6Al 6V 2Sn (R56620)
Chemical Composition (Max. values unless range is shown) (wt. %) 0.08C; 0.04N; 0.20O; 5.0-6.0Al; 5.0-6.0V; 1.5-2.5Sn; 0.35-1.0Fe; 0.35-1.0 Cu; 0.0125H (billet); 0.015H (bar, sheet, plate)
TENSILE PROPERTIES Guar.R.T. Min.* Typical Elevated Temperature Properties
204˚C (400˚F) 315˚C (600˚F) 427°C (800°F)
Ultimate Strength MPa (ksi) 1034 (150) 1070 (155) 1000 (145) 930 (135)
Yield Strength, 0.2% offset MPa (ksi) 965 (140) 930 (135) 827 (120) 793 (115)
Elongation in 51 mm (2″) gage length (%) 10L, 8T
Reduction in Area – Bar, Billet & Forging only (%) 20L, 15T
OTHER MECHANICAL PROPERTIES * For sections ≤ 51mm, Annealed Condition
Stress to Rupture in Time Shown Stress MPa (ksi)
Time-Hrs. at Temp. (˚C)
Stress &Time to Produce Elongation Shown (creep) Stress MPa (ksi) 655 (95) 276 (40) 124 (18)
Time-Hrs. at Temp. (˚C) 100 (315) 100 (370) 100 (427)
Creep (%) 0.2 0.2 0.2
Charpy V-Notch Impact @ R.T. Joules (ft-lbs) 16 – 19 (12 – 14)
Bend Radius Under 1.78 mm (0.070″) thick 4.0 x Thickness
1.78 mm (0.070″) and over 4.5 x Thickness
Welded Bend Radius
Nominal Hardness 38 HRC (Ann. condition)
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) 9.0 (5.0)
0-315˚C (32-600˚F) 9.3 (5.2)
0-538˚C (32-1000˚F) 9.5 (5.3)
0-648˚C (32-1200˚F) 10.7 (6.0)
0-816˚C (32-1500˚F) 10.9 (6.1)
Density g/cm3 (lbs/in3) 4.54 (0.164)
Melting Point, Approx. °C (°F) 1650 (3000) – 1704 (3100)
Electrical Resistivity @ R.T. 10-6 ohm•cm (10-6 ohm•in) 157 (398)
Modulus of Elasticity – Tension GPa (103 ksi) 114 (16.5)
Modulus of Elasticity – Torsion GPa (103 ksi)
Thermal Conductivity W/m•˚C (BTU/hr•ft•˚F) 5.5 (3.2)
Specific Heat J/Kg•˚C (BTU/lb•˚F) 635 (0.155)
Weldability Limited
Industry Specifications AMS 4918, 4936, 4971, 4978 and 4979; MIL-T – 9046 and – 9047