UNS Number R56400

Titanium Grade 5 alloy is the most widely used titanium grade. It is a two phase α+βtitanium alloy, with aluminum as the alpha stabilizer and vanadium as the beta stabilizer. This high-strength alloy can be used at cryogenic temperatures to about 800°F (427°C). Ti-6Al-4V, Grade 5 alloy is used in the annealed condition and in the solution treated and aged condition. This alloy is produced by primarymelting using vacuum arc (VAR), electron beam (EB), or plasma arc hearthmelting (PAM). Remelting is achieved by one or two vacuum arc steps.

Available Forms of Titanium Grade 5 at Rooplaxmi Steels:

•           Bar
•           Sheet
•           Plate
•           Pipe & Tube (welded and seamless)
•           Wire

 

Characteristics of Titanium Grade 5:

•           High Strength
•           High Ductility

Titanium Grade 5 Chemical Composition, %:

Al	Fe	O	Ti	V
6	0.25 Max	0.2 Max	90	4

Application of Titanium Grade 5:

•           Airframe components
•           Cryogenic vessels
•           Heat exchangers
•           CPI equipment
•           Condensor tubing
•           Surgical hardware
•           Pickling baskets

 

Machining and Fabrication with Titanium Grade 5:

Although tough, Titanium Grade 5 can be machined using the right quantity of coolant flow, slow speeds and high feed rates. High speed tools should be used for tooling this alloy and the recommended tool types are tungsten carbide designations C1-C4 or cobalt based. It can be hot or cold formed. The forming techniques include hydropress, stretch or drop-hammer.Weldability of Titanium grade 5 is rated as fair.
Annealing can be performed by holding at 732°C (1350°F) between 1/4 and 4 h, then furnace cooled to 566°C (1050°F) followed by air cooling. In case of forgings and bars, furnace cooling is not required.
Solution treatment of the material is done at 904-954°C (1660-1750° F) for 2 h, which is followed by water quench process.
Rough forging of Titanium Grade 5 should be performed at 982°C(1800°F), and finished at 968°C (1750°F).
Hot working enhances the overall ductility of the material.
Cold working features of this material is same as that of a moderately tempered austenitic stainless steel. Post-work annealing is recommended to re- attain favorable performance properties.
Aging of Titanium Grade 5 can be performed at 538°C (1000°F) for 4 h, and then air cooled.

 

Titanium Grade 5 ASTM Specification:

Sheet / Plate	Rod and Bar
B265	B348

 

Mechanical Properties of Titanium Grade 5:

Ultimate Tensile Strength	1170 MPa or 177000 psi
Yield	(0.2 % offset) 1100 MPa Or 160000 psi
Elongation	10 %