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Elmet Technologies

Titanium Ti-6Al-4V (Grade 5), STA Bar
Categories: Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy

Material Notes: Information provided by Allvac and the references. Solution Treated 900-955ºC, Aged 540ºC. Alpha-Beta Alloy

Applications: Blades, discs, rings, airframe, fasteners, components. Vessels, cases, hubs, forgings.. Biomedical implants.

Biocompatibility: Excellent, especially when direct contact with tissue or bone is required. Ti-6Al-4V's poor shear strength makes it undesirable for bone screws or plates. It also has poor surface wear properties and tends to seize when in sliding contact with itself and other metals. Surface treatments such as nitriding and oxidizing can improve the surface wear properties.

4 other heat treatments of this alloy are listed in MatWeb.

Key Words: Ti-6-4; UNS R56400; ASTM Grade 5 titanium; Ti6Al4V, Ti64, biomaterials, biomedical implants, biocompatibility
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesMetricEnglishComments
Density 4.43 g/cc0.160 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 360360Estimated from Rockwell C.
Hardness, Knoop 392392Estimated from Rockwell C.
Hardness, Rockwell C 3939
Hardness, Vickers 376376Estimated from Rockwell C.
Tensile Strength, Ultimate 1035 MPa150100 psi
Tensile Strength, Yield 965 MPa140000 psi
Elongation at Break 8.0 %8.0 %
Reduction of Area 50 %50 %
Modulus of Elasticity 114 GPa16500 ksiAverage of tension and compression
Compressive Yield Strength 1070 MPa155000 psi
Poissons Ratio 0.330.33
Fatigue Strength 700 MPa
@# of Cycles 1.00e+7
102000 psi
@# of Cycles 1.00e+7
smooth
Shear Modulus 44.0 GPa6380 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000178 ohm-cm0.000178 ohm-cm
Magnetic Permeability 1.000051.00005at 1.6 kA/m
Magnetic Susceptibility 0.00000330.0000033cgs/g
 
Thermal PropertiesMetricEnglishComments
CTE, linear  8.60 µm/m-°C
@Temperature 20.0 - 100 °C
4.78 µin/in-°F
@Temperature 68.0 - 212 °F
 9.20 µm/m-°C
@Temperature 20.0 - 315 °C
5.11 µin/in-°F
@Temperature 68.0 - 599 °F
average
 9.70 µm/m-°C
@Temperature 20.0 - 650 °C
5.39 µin/in-°F
@Temperature 68.0 - 1200 °F
average
Specific Heat Capacity 0.5263 J/g-°C0.1258 BTU/lb-°F
Thermal Conductivity 6.70 W/m-K46.5 BTU-in/hr-ft²-°F
Melting Point 1604 - 1660 °C2919 - 3020 °F
Solidus 1604 °C2919 °F
Liquidus 1660 °C3020 °F
Beta Transus 980 °C1800 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 5.5 - 6.75 %5.5 - 6.75 %
Carbon, C <= 0.080 %<= 0.080 %
Hydrogen, H <= 0.015 %<= 0.015 %
Iron, Fe <= 0.40 %<= 0.40 %
Nitrogen, N <= 0.030 %<= 0.030 %
Other, each <= 0.050 %<= 0.050 %
Other, total <= 0.30 %<= 0.30 %
Oxygen, O <= 0.20 %<= 0.20 %
Titanium, Ti 87.725 - 91 %87.725 - 91 %As Balance; Elemental Composition per ASTM B265
Vanadium, V 3.5 - 4.5 %3.5 - 4.5 %
 
Descriptive Properties
Velocity of Sound4.987 km/sHeat treatment not specified

References for this datasheet.

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