Titanium Ti-8Al-1Mo-1V (Ti-8-1-1) Annealed 8 hr at 790C (1450F)

Subcategory: Alpha/Near Alpha Titanium Alloy; Metal; Nonferrous Metal; Titanium Alloy

Close Analogs: 5 other heat treatments of this alloy are in MatWeb.

Key Words: Ti8Al1Mo1V, UNS R54810; Ti-811

Component   Wt. %

Material Notes:
Information provided by Allvac and the references.

Applications: Fan & compressor blades, discs, spacers, seals, rings. Excellent creep resistance.

Physical PropertiesMetricEnglishComments
Density4.37 g/cc0.158 lb/in 

Mechanical Properties
Hardness, Brinell334334 Estimated from Rockwell C.
Hardness, Knoop363363 Estimated from Rockwell C.
Hardness, Rockwell C3636 
Hardness, Vickers349349 Estimated from Rockwell C.
Tensile Strength, Ultimate1000 MPa145000 psi 
Tensile Strength, Yield930 MPa135000 psi 
Elongation at Break12 %12 % 
Modulus of Elasticity121 GPa17500 ksi in tension.
Compressive Yield Strength980 MPa142000 psi 
Notched Tensile Strength1100 MPa160000 psi Kt (stress concentration factor) = 6.0
Ultimate Bearing Strength2000 MPa290000 psi e/D = 2
Bearing Yield Strength1480 MPa215000 psi e/D = 2
Poisson's Ratio0.320.32 
Charpy Impact20 - 30 J14.8 - 22.1 ft-lb V-notch
Fatigue Strength170 MPa24700 psi at 1E+7 cycles. Kt (stress concentration factor) = 2.6
Fatigue Strength340 MPa49300 psi 1E+7 cycles, Unnotched
Fatigue Strength725 MPa105000 psi 50,000 cycles, Unnotched
Shear Modulus46 GPa6670 ksi 
Shear Strength620 MPa89900 psi Ultimate shear strength

Thermal Properties
CTE, linear 20C8.5 m/m-C4.72 in/in-F Annealed
CTE, linear 250C9.2 m/m-C5.11 in/in-F 
Specific Heat Capacity0.502 J/g-C0.12 BTU/lb-F 
Thermal Conductivity6 W/m-K41.6 BTU-in/hr-ft-F 
Melting PointMax 1540 CMax 2800 F Liquidus
Liquidus1540 C2800 F 
Beta Transus1038 C1900 F 

References for this datasheet.

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