Titanium-Based Alloys

Titanium alloys occupy a unique position in the materials landscape. With densities roughly half that of steel and nickel alloys, yet tensile strengths that rival many structural steels, they enable designs that would be impossible with conventional metals. Add in exceptional resistance to seawater corrosion, biocompatibility with human tissue, and stability across cryogenic to moderately elevated temperatures, and the reason for titanium's premium status becomes clear.

Eata Energy supplies a broad selection of titanium alloys covering alpha, alpha-beta, and beta classifications. Our inventory spans the industry workhorse Ti-6Al-4V (Grade 5), elevated-temperature grades like Ti-6Al-2Sn-4Zr-2Mo, and specialized alloys such as Ti-3Al-2.5V for tubing applications. All materials are sourced from qualified mills and supplied with full certification to ASTM, AMS, or customer-specific standards.

Featured Alloy Grades

The titanium alloys featured below represent our most frequently requested grades, each selected for proven performance in specific operating environments.

Precision-machined titanium alloy round bars in assorted diameters with distinctive warm grey luster

Ti-6Al-4V / Grade 5 (UNS R56400)

No other titanium alloy comes close to Ti-6Al-4V in terms of sheer production volume and breadth of application. Accounting for over half of all titanium alloy consumed worldwide, this alpha-beta grade delivers a tensile strength of 950 MPa minimum alongside a density of just 4.43 g/cm3. The 6% aluminum stabilizes the alpha phase for elevated-temperature strength, while 4% vanadium retains sufficient beta phase to enable heat treatment and modest cold forming.

Aerospace structures, jet engine compressor blades and discs, offshore risers, high-performance automotive components, and orthopedic implants all leverage Grade 5's exceptional strength-to-weight ratio. Maximum continuous service temperature sits at approximately 315 C, with short-term excursions tolerable to 425 C. Specifications include ASTM B265 for sheet and plate, ASTM B348 for bar, and AMS 4928 for aerospace-grade products.

Ti-6Al-2Sn-4Zr-2Mo (UNS R54620)

When service temperatures climb beyond the comfort zone of Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo steps in as the preferred replacement. Often referred to as Ti-6-2-4-2, this near-alpha alloy maintains creep resistance and tensile strength at temperatures up to 540 C, a full 200 C above Grade 5's practical limit. The tin and zirconium additions enhance solid-solution strengthening without significantly increasing density, while the controlled molybdenum content provides modest beta-phase stabilization for improved forgeability.

Jet engine turbine blades and discs, compressor cases, and afterburner components in military and commercial propulsion systems rely on Ti-6-2-4-2 for its creep-fatigue resistance at elevated temperatures. The alloy is typically specified to AMS 4919 for sheet and AMS 4975 for bar and forging stock.

Ti-5Al-2.5Sn / Grade 6 (UNS R54520)

As a true alpha alloy, Ti-5Al-2.5Sn offers weldability and creep stability that alpha-beta grades struggle to match. Without vanadium or other strong beta stabilizers, the microstructure remains predominantly hexagonal close-packed alpha phase, which translates to predictable behavior during welding and minimal embrittlement after elevated-temperature exposure. Tensile strength of 830 MPa and proven performance up to 450 C make this alloy a natural fit for welded pressure vessels, cryogenic storage tanks, and steam turbine components.

Grade 6 also finds favor in medical implant applications where the absence of vanadium addresses biocompatibility concerns. ASTM B348 and AMS 4918 are the most commonly specified standards.

Ti-3Al-2.5V / Grade 9 (UNS R56320)

Sometimes called the workhorse of titanium tubing, Grade 9 sits between commercially pure titanium and Ti-6Al-4V in terms of strength while offering superior cold formability and weldability to both. With 50% higher strength than Grade 2 CP titanium and substantially better ductility than Grade 5, Ti-3Al-2.5V has become the default choice for hydraulic tubing, heat exchanger coils, bicycle frames, and sporting equipment.

Tensile strength in the annealed condition runs 620-700 MPa, depending on section size, with elongation typically exceeding 15%. The alloy can be cold-worked for additional strength gains without sacrificing toughness. Available to ASTM B338 for tubing and ASTM B348 for bar and rod.

Industries and Applications

Array of precision-engineered titanium alloy fan blades for gas turbine engines

Aerospace and Propulsion

Modern aircraft simply could not achieve current fuel efficiency without titanium. The material's specific strength, stiffness, and fatigue resistance enable lighter airframes and more compact engine designs. Compressor blades, turbine discs, airframe bulkheads, landing gear components, and fasteners throughout military and commercial aircraft rely on Ti-6Al-4V and Ti-6-2-4-2. Every kilogram of titanium substituted for steel or nickel alloy saves roughly half the weight, a figure that directly translates to payload capacity and range.

Marine and Offshore

Saltwater immersion destroys most metals within months. Titanium, by contrast, forms a tenacious passive oxide film that protects against corrosion across the full range of marine environments, from shallow tropical waters to deep ocean pressures. Propeller shafts, seawater intake piping, heat exchangers, desalination plant components, and submersible hull structures all benefit from titanium's immunity to chloride attack. Marine growth rates on titanium surfaces also tend to be lower than on copper alloys, reducing maintenance overhead.

Submersible marine propulsion unit featuring titanium alloy shaft and propeller assembly

Medical and Biomedical

Titanium's biocompatibility, osseointegration capability, and corrosion resistance in physiological environments have made it the dominant structural metal for orthopedic and dental implants. Hip and knee replacements, spinal fixation devices, bone screws, plates, and dental implants overwhelmingly use Ti-6Al-4V ELI (Extra Low Interstitial) for its enhanced fracture toughness and fatigue resistance. The ELI variant restricts oxygen, nitrogen, and iron to lower levels than standard Grade 5, improving ductility without compromising strength.

Titanium alloy orthopedic implants including hip joint replacement and bone fixation screws

Chemical Processing and Industrial

Chloride-containing process streams, wet chlorine gas, hypochlorite solutions, and oxidizing acids attack stainless steels aggressively yet barely trouble titanium. Heat exchangers, reaction vessels, evaporators, and piping systems in chlor-alkali plants, pulp and paper mills, and chemical refineries routinely specify titanium alloys for corrosion-critical wetted surfaces. The initial material cost premium pays back rapidly through extended service life and reduced downtime.

Grade Comparison and Key Properties

The table below summarizes the mechanical and physical properties of our most commonly supplied titanium alloys:

Available Forms

Eata Energy stocks and supplies titanium alloys in a comprehensive range of mill forms and processed conditions:

• Round, square, and hexagonal bars from 3 mm to 350 mm diameter
• Hot-rolled and cold-rolled sheet and plate from 0.3 mm to 75 mm thickness
• Precision strip and foil from 0.025 mm to 3 mm in slit coil or cut lengths
• Seamless and welded tubing in outer diameters from 3 mm to 219 mm
• Wire for welding, fasteners, and spring applications from 0.1 mm to 12 mm
• Billet and forging stock for closed-die and open-die forging operations
• Spherical and irregular powder for additive manufacturing, MIM, and thermal spray
• Custom-cut blanks, machined preforms, and near-net-shape components

Warehouse inventory of titanium alloy seamless tubes in assorted diameters and wall thicknesses

Custom and Development Alloys

Beyond standard grades, Eata Energy supports custom alloy development and specialized processing. Beta titanium alloys such as Ti-10V-2Fe-3Al and Ti-15V-3Cr-3Al-3Sn can be sourced for applications requiring deep hardenability or exceptional formability in the solution-treated condition. Thermomechanical processing routes including beta forging, alpha-beta forging, and thermohydrogen processing can be specified to optimize microstructure for fatigue-critical or fracture-critical applications.

Our engineering team works directly with your designers to select the right alloy, condition, and specification for your specific application. Whether you need a small prototype batch or a production supply agreement, contact us to discuss your titanium alloy requirements.

For Research or Industrial Raw Materials, Not For Personal Medical Use!