Ti-10V-2Fe-3AI Titanium Alloy

Ti-10V-2Fe-3Al (also known as 10-2-3 Titanium) is a near-beta (β) titanium alloy, in which the combination of high strength and high toughness is superior to any other commercial titanium alloy. A wide range of strengths and corresponding toughness is achievable through appropriate selection of forging parameters and heat treatment. This alloy is used in applications up to 600F where medium to high strength and high toughness are required in bar, plate, or forged sections up to 5 inch thick. Ti 10-2-3 is typically used in many applications including airframe components, compressor blades, discs, wheels, and spacers. Ti-10V-2Fe-3Al is primarily used in forgings. Standard specifications include AMS 4983, AMS 4984 and more.

At Rickard Specialty Metals, we have 25+ years of supplying Ti-10V-2Fe-3Al to your custom measurements and shapes. Our forging process includes open die forgings, ring rolling and more. See below for a list of common titanium 10-2-3 forged shapes, including round/flat bar, and additional product forms we offer.

Ti-10V-2Fe-3AI Additional Information:

Physical Properties

Hardness: Varies from HRC 35 – HRC 42, depending on specification and strength level chosen
Density: 0.168 lbs/cubic inch
Modulus of Elasticity: 15-16 MSI in STA condition
Thermal Expansion: 5.4 x10-6 in/in/F, RT-800F

Machining

Ti-10-2-3 is Somewhat more difficult to machine than Ti-6Al-4V but less difficult than all beta titanium alloys.

Welding

The weldability of this Ti 10-2-3 is judged to be comparable to that for Ti-6Al-4V. It can be electron beam welded using parameters similar to those for Ti-6Al-4V. As expected, variations in heat treatment produce significant differences in mechanical properties, but weld properties are generally comparable to those of the base metal.

Forming

Forming for Ti-10-2-3 is considered moderately good in the solution annealed condition and better than near alpha alloys and alpha + beta alloys.

Corrosion Resistance

Corrosion resistance is generally excellent for Ti-10V-2Fe-3AI, although, the alloy is sometimes susceptible to salt stress corrosion cracking.

Heat Treatment

Ti 10-2-3 can be processed and heat treated to provide a wide range of mechanical and fracture properties. Variations in strength/toughness combinations and fatigue properties result as a function of working history and heat treatment. Increasing the volume fraction of primary alpha phase reduces the ductility at comparable yield strengths for the alpha-aged condition. The beta-solution treated conditions with no primary alpha have lower ductility than alpha + beta solution treated conditions.

For a single aging temperature, increasing the solution temperature from about 1300F to 1500F results in an increase in Fty and Ftu with a decrease in tensile ductility. Solution treating above the beta transus can result in very low tensile ductility for high-strength conditions. The general effect of increasing the aging temperature in the region between 900F and 1100F is to decrease the tensile strengths and increase the tensile ductility with the magnitude of the effects depending on the forging practice and testing direction. Standard heat treat procedures for forgings are specified in the AMS forging specifications below.

Forging

The forging process for Ti-10V-2Fe-3AI consists of initial mechanical working above the beta-transus temperature and finish working below the beta-transus temperature, in the alpha/beta zone. The amount of mechanical working in the finish operation determines the microstructure, which influences the response to subsequent heat treatment.

	0.2% YS	UTS	E%	RA%	K-1C
AMS 4983	160 KSI	180 KSI	4	To Be Reported	40KSI √inch
AMS 4984	160 KSI	173 KSI	4	To Be Reported	40KSI √inch
AMS 4986	145 KSI	160 KSI	6	10	55KSI √inch
AMS 4987	130 KSI	140 KSI	8	20	80KSI √inch