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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 PropertiesOriginal ValueComments
Density 4.43 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 360Estimated from Rockwell C.
Hardness, Knoop 392Estimated from Rockwell C.
Hardness, Rockwell C 39
Hardness, Vickers 376Estimated from Rockwell C.
Tensile Strength, Ultimate 1035 MPa
Tensile Strength, Yield 965 MPa
Elongation at Break 8.0 %
Reduction of Area 50 %
Modulus of Elasticity 114 GPaAverage of tension and compression
Compressive Yield Strength 1070 MPa
Poissons Ratio 0.33
Fatigue Strength 700 MPa
@# of Cycles 1.00e+7
smooth
Shear Modulus 44.0 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.000178 ohm-cm
Magnetic Permeability 1.00005at 1.6 kA/m
Magnetic Susceptibility 0.0000033cgs/g
 
Thermal PropertiesOriginal ValueComments
CTE, linear 8.60 µm/m-°C
@Temperature 20.0 - 100 °C
 9.20 µm/m-°C
@Temperature 20.0 - 315 °C
average
 9.70 µm/m-°C
@Temperature 20.0 - 650 °C
average
Specific Heat Capacity 0.5263 J/g-°C
Thermal Conductivity 6.70 W/m-K
Melting Point 1604 - 1660 °C
Solidus 1604 °C
Liquidus 1660 °C
Beta Transus 980 °C
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al 5.5 - 6.75 %
Carbon, C <= 0.080 %
Hydrogen, H <= 0.015 %
Iron, Fe <= 0.40 %
Nitrogen, N <= 0.030 %
Other, each <= 0.050 %
Other, total <= 0.30 %
Oxygen, O <= 0.20 %
Titanium, Ti 87.725 - 91 %As Balance; Elemental Composition per ASTM B265
Vanadium, V 3.5 - 4.5 %
 
Descriptive Properties
Velocity of Sound4.987 km/sHeat treatment not specified

References for this datasheet.

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MTP645 / 14243

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