Titanium Ti6Al4V (Grade 5), STA Bar
Subcategory: Alpha/Beta Titanium Alloy; Metal; Nonferrous Metal; Titanium Alloy
Close Analogs: 4 other heat treatments of this alloy are listed in MatWeb.
Key Words: Ti64; UNS R56400; ASTM Grade 5 titanium; UNS R56401 (ELI); Ti6Al4V, biomaterials, biomedical implants, biocompatibility
Component  Wt. %    Al  6   Fe  Max 0.25   O  Max 0.2   Ti  90   V  4  

Material Notes: Information provided by Allvac and the references. Solution Treated 900955ºC, Aged 540ºC. AlphaBeta 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. Ti6Al4V'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.
Physical Properties  Metric  English  Comments 

Density  4.43 g/cc  0.16 lb/in³  
Mechanical Properties 

Hardness, Brinell  360  360  Estimated from Rockwell C. 
Hardness, Knoop  392  392  Estimated from Rockwell C. 
Hardness, Rockwell C  39  39  
Hardness, Vickers  376  376  Estimated from Rockwell C. 
Tensile Strength, Ultimate  1035 MPa  150000 psi  
Tensile Strength, Yield  965 MPa  140000 psi  
Elongation at Break  8 %  8 %  
Reduction of Area  50 %  50 %  
Modulus of Elasticity  114 GPa  16500 ksi  Average of tension and compression 
Compressive Yield Strength  1070 MPa  155000 psi  
Poisson's Ratio  0.33  0.33  
Fatigue Strength  700 MPa  102000 psi  Smooth, 10,000,000 Cycles 
Shear Modulus  44 GPa  6380 ksi  
Electrical Properties 

Electrical Resistivity  0.000178 ohmcm  0.000178 ohmcm  
Magnetic Permeability  1.00005  1.00005  at 1.6 kA/m 
Magnetic Susceptibility  3.3e006  3.3e006  cgs/g 
Thermal Properties 

CTE, linear 20°C  8.6 µm/m°C  4.78 µin/in°F  20100ºC 
CTE, linear 250°C  9.2 µm/m°C  5.11 µin/in°F  Average over the range 20315ºC 
CTE, linear 500°C  9.7 µm/m°C  5.39 µin/in°F  Average over the range 20650ºC 
Specific Heat Capacity  0.5263 J/g°C  0.126 BTU/lb°F  
Thermal Conductivity  6.7 W/mK  46.5 BTUin/hrft²°F  
Melting Point  1604  1660 °C  2920  3020 °F  
Solidus  1604 °C  2920 °F  
Liquidus  1660 °C  3020 °F  
Beta Transus  980 °C  1800 °F  
References for this datasheet.
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