Titanium

ATI offers corrosion-resistant titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

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ATI 6-2-4-2™ Alloy (UNS R54620) is a near-alpha high strength titanium alloy that shows a good combination of tensile strength, creep strength, and toughness. It shows long term stability at temperatures up to 800°F; (425°C). Silicon up to 0.1% is frequently added to improve the creep resistance of the alloy.

ATI 6-2-4-2™ Alloy is produced by primary melting under vacuum (VAR), electron beam (EB) melting, or plasma arc cold hearth melting (PAM). Primary melting is followed by single or double vacuum arc remelting (VAR). Product forms include forging billet, forged or rolled bar, flat rolled products, extrusions, and wire. ATI 6-2-4-2™ Alloy is used in gas turbine engines for compressor blades, discs, and impellers. It also has applications in afterburner structures as well as for airframe skin applications.

ATI Ti-6Al-4V-ELI, Grade 23 alloy (Extra Low Interstitials, UNS R56407) is a higher purity grade of ATI Ti-6Al-4V alloy. This grade has lower oxygen, carbon, and iron content. It is used in biomedical applications such as surgical instruments, orthopedic implants, and is the preferred grade for marine and cryogenic applications, and some important aerospace components. This titanium grade is produced by vacuum arc primary melting followed by a second vacuum arc remelting operation.

ATI 64-MIL™ titanium alloy (UNS R56400) is a two phase α+β titanium alloy, with aluminum as the alpha stabilizer and vanadium as the beta stabilizer. This high-strength alloy can be used at cyrogenic temperatures to about 800° F (427° C). ATI 64-MIL™ alloy is used in the annealed condition and in the solution treated and aged condition. Some applications include: armor, compressor blades, discs, and rings for jet engines; airframe and space capsule components; pressure vessels; rocket engine cases; helicopter rotor hubs; fasteners; critical forgings requiring high strength-to-weight ratios; medical and surgical devices. This alloy is produced by primary melting using vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting is achieved by one or two vacuum arc steps.

ATI Ti-6Al-4V, Grade 5 alloy (UNS R56400) is the most widely used titanium grade. It is a two phase α+β titanium 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). ATI Ti-6Al-4V, Grade 5 alloy is used in the annealed condition and in the solution treated and aged condition. Some applications include: compressor blades, discs, and rings for jet engines; airframe and space capsule components; pressure vessels; rocket engine cases; helicopter rotor hubs; fasteners; critical forgings requiring high strength-toweight ratios.

This alloy is produced by primary melting using vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting is achieved by one or two vacuum arc steps.

ATI 6-6-2™ Alloy (UNS R56620) is a highly beta-stabilized, two-phase, alpha-beta titanium alloy which is a modification of the Ti6Al-4V system. Because of the higher Beta stabilizing elements (additional V plus Fe and Cu), this alloy has a higher strength potential than ATI Ti-6Al-4V alloy, but at a sacrifice of weldability and toughness. In most cases, the welding of ATI 6-6-2™ alloy is not recommended. It can be used in the annealed or solution treated and aged conditions. Typical applications are airframe and jet engine parts (see ATI 6Al-4V alloy), rocket engine cases, and ordnance components.

ATI 6-7™ Alloy (UNS R56700) was conceived and developed in 1977 by a team of researchers at Gebruder Sulzer in Winterthur, Switzerland1 . The objective was to create a titanium alloy for medical and surgical device applications with properties nearly identical to ATI Ti-6Al-4V, substituting Niobium for Vanadium as the beta stabilizing element2 . After six years of testing and evaluation, the alloy was introduced by Sulzer-Protek as Protasul® 100 in 1985, and has been used clinically since 19863 . ATI 6-7™ Alloy is widely used in the medical device industry, primarily for orthopaedic applications such as: total hip replacement systems, fracture fixation plates, intermedullary rods and nails, spinal devices, screws, and wires.

ATI 8-1-1™ alloy (UNS R54810) is a near alpha alloy with aluminum being the alpha stabilizer, and the additions of Mo, V and Fe resulting in small amounts of beta. The alloy is intended primarily for use at elevated temperatures, has good creep strength and good weldability, and possesses the lowest density of any titanium-base alloy. ATI 8-1-1™ alloy is used in the annealed condition, and special duplex annealing procedures have been developed for thick sections, such as bars and forgings. Typical applications are airframe and jet engine parts requiring high strength, superior creep strength a good stiffness-to-density ratio, and toughness.

ATI 15Mo™ Alloys (UNS R58150) is a beta titanium alloy capable of a wide variety of properties depending on the metallurgical condition. The achievable properties include low modulus of elasticity, high strength, excellent fatigue strength, good ductility/formability, exceptional corrosion resistance, and well-documented biocompatibility1 . ATI 15Mo™ Alloys are manufactured as bar, rod, and wire product forms primarily for orthopedic, trauma, spinal, dental, orthodontic, and cardiovascular applications. Other product forms can be made available by request.

ATI Ti-5Al-2Sn-2Zr-4Cr-4Mo Alloy (UNS R58650), also known as Ti-17, was developed by General Electric as a high strength, deep hardening alloy for fan and compressor discs and for other large components. It has been classified as a “beta-rich” alpha-beta alloy. The alloy may be processed in the beta region, or in the alpha plus beta region. This Ti-17 alloy has higher tensile and creep strengths than Ti-6Al-4V. While its hardenability is similar to other beta alloys, ATI 17™ Alloy has a lower density and a higher modulus than most other beta titanium alloys.

ATI 17™ Alloy is normally produced by plasma cold hearth melting (PAM), and is followed by vacuum arc remelting (VAR). The alloy is normally supplied as forging billet, but it may also be supplied as forged or rolled bar.

ATI 38-644™ beta titanium Alloy (UNS R58640) is equivalent to Beta C™* (Ti-3Al-8V-6Cr-4Mo-4Zr). This grade is a metastable beta titanium alloy known for its exceptional ductility in the solution treated (annealed) condition, and for its high strength and ductility in the solution treated and aged condition (STA) condition. Improved tensile properties can be achieved, while maintaining good ductility and a low modulus of elasticity. Fatigue strength is also good in the STA condition.

This alloy is produced by one of two basic primary melting methods: vacuum arc (VAR) or plasma arc cold-hearth melting (PAM). Primary melting is followed by a vacuum arc remelt. Typical product forms are forged billet, rolled bar, rolled and/ or drawn rod and wire. These products find applications in high strength aerospace and commercial applications, structural parts, gas and petroleum down-hole piping systems and tooling, and high strength coil springs and fasteners. ATI 38-644™ alloy can be used for extended periods in elevated temperature environments below 660°F (349°C).

Originally developed for application as an aerospace alloy because of its relative ease of formability, high strength and ductility at temperatures up to 427°C (801°F), ATI 45Nb™ Alloy is an ideal candidate for rivets that secure aluminum aircraft panels, particularly in areas exposed to high engine exhaust temperatures.

This alloy has been used as welded flange components that secure high energy physics RF linear accelerator cavities (made from high purity niobium), and has been drawn into superconductivity wire. It is used as a medical device material for cochlear hearing implants and its low elastic modulus makes the material a consideration for a variety of medical and dental devices.

ATI 45Nb™ Alloy is easily fabricated into structures and components. Although it is considered a refractory metal, processing techniques are the same as those for other titanium alloys. Parts are typically welded using the GTAW process but require the addition of trailing and backing shields and due to its simple metallurgical structure there is no requirement for post weld heat treatment. Machining requires the use of solid fixture setups, high torque at low RPM ridge machine tools with sharp high rake cutters.

With an exceptionally small bend radius capability (down to a bend radius of 1t where t=sheet thickness) and low modulus of elasticity, ATI 45Nb™ Alloy is highly formable and yet still retains excellent tensile and elongation properties. It can also be cast into shapes with the same processes used to cast CP titanium.

ATI 45Nb™ Alloy readily accepts surface oxidation treatment to enhance its hardness and wear resistance. “Nobelizing” is a common commercially available process to apply this type of surface treatment.

ATI 45Nb™ Alloy provides improved corrosion resistance along with higher strength compared to that of Ti-7, 12, 16, and 26 in many chemical environments. ATI 45Nb™ Alloy has also proven to be a great success in the autoclave processing of gold ore. For many years gas vents, oxygen lances, steam spargers, valves and other pressure oxidation reactor components have been produced, put into service, and survived hot, concentrated sulfuric or hydrochloric acid. In addition the metal has been shown to have higher ignition resistance when compared to CP Ti, thereby allowing further process optimization.

Another chemical processing applications for ATI 45Nb™ Alloy is the oxygen-based, low-pressure, wet oxidation process (LoProx*) for the treatment of waste water and sludge. Because of its corrosion and higher ignition resistance this material is an ideal candidate for the 200°C (392°F), 20 bar pressure with oxygen environment. The superior corrosion resistance of ATI 45Nb™ Alloy makes it well suited for service in a variety of environments including most organic and mineral acids below 150°C (302°F). Because of its stable oxide film, ATI 45Nb™ Alloy has excellent resistance to oxidizing acids including mixtures of HNO3 and HCL; however it is susceptible to attack from HF and other fluoride ions.

ATI 425® alloy is a high strength, high ductility, titanium alloy available in a variety of product forms, including cold-rolled coil or sheet. Originally developed by ATI for ballistic armor applications, it has recently been characterized for aerospace and industrial applications, including publication of design allowables in the MMPDS handbook.

ATI 425® alloy is an alpha-beta titanium alloy that uses iron and vanadium as beta stabilizers as well as aluminum as an alpha stabilizer. The lower aluminum and vanadium contents and higher oxygen and iron contents give ATI 425® alloy a unique combination of ductility and tensile strength.

The combination of strength and ductility found in ATI 425® alloy makes it useful for titanium applications that require cold forming, such as roll-forming and bending, while still providing superior strength compared to low alloy grades of titanium.

ATI 425® alloy in the cold-rolled titanium coil or sheet product forms provide advantages that come from continuous processing that are not available in pack-rolled sheet. For example, ATI 425® alloy cold-rolled product has better gauge tolerance and surface finish than pack-rolled sheet and is available in lengths ranging from cut sheet to coil. Coil length products are generally not available in other titanium alloys with tensile strengths exceeding 130 ksi (896 MPa) and ductility exceeding 10% elongation.

ATI 425® alloy is a high strength, high ductility, titanium alloy available in a variety of product forms, including cold-rolled coil or sheet. Originally developed by ATI for ballistic armor applications, it has recently been characterized for aerospace and industrial applications, including publication of design allowables in the MMPDS handbook.

ATI 425® alloy is an alpha-beta titanium alloy that uses iron and vanadium as beta stabilizers as well as aluminum as an alpha stabilizer. The lower aluminum and vanadium contents and higher oxygen and iron contents give ATI 425® alloy a unique combination of ductility and tensile strength.

The combination of strength and ductility found in ATI 425® alloy makes it useful for titanium applications that require cold forming, such as roll-forming and bending, while still providing superior strength compared to low alloy grades of titanium.

ATI 425® alloy in the cold-rolled titanium coil or sheet product forms provide advantages that come from continuous processing that are not available in pack-rolled sheet. For example, ATI 425® alloy cold-rolled product has better gauge tolerance and surface finish than pack-rolled sheet and is available in lengths ranging from cut sheet to coil. Coil length products are generally not available in other titanium alloys with tensile strengths exceeding 130 ksi (896 MPa) and ductility exceeding 10% elongation.

ATI Tiadyne™ 3510 Titanium Alloy is a unique titanium base alloy that offers attractive properties for a wide range of applications. It exhibits a martensitic microstructure at room temperature after being quenched from 850°C (1562°F) (beta transus approximately 635°C(1175°F)).

After aging at 425°C–550°C (797°F–1022°F), the tensile and yield strengths are increased significantly. It also exhibits a low modulus of elasticity, excellent castability, and superplasticity at elevated temperatures. It is readily weldable and machinable before and after hardening.

An extraordinary characteristic of ATI Tiadyne™ 3510 titanium is the capability of being surface hardened to depths that produce very high wear resistance. The hardened layer is highly adherent rendering it excellent for wear applications. The primary elements in the alloy, titanium, zirconium, and niobium, are all non-toxic and non-carcinogenic. The alloy is produced by traditional metallurgical processing, requiring no special costly treatment.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

• Typically used in superelastic nickel titanium alloy medical devices
• Applicable industry standards: ASTM F2063, ASTM F2005, ASTM F2004, ASTM F2082
• Transformation temperature: Austenite finish (Af) temperature range -30°C to 0°C
• (Determined in the fully solution annealed condition by DSC testing)

• Typically used in shape memory Nickel Titanium alloy medical devices
• Applicable industry standards: ASTM F2063, ASTM F2005, ASTM F2004, ASTM F2082
• Transformation temperature: Austenite finish (Af) temperature range 0°C to 30°C
• (Determined in the fully solution annealed condition by DSC testing)

• Typically used in shape memory nickel titanium alloy devices and actuators
• Applicable industry standards: ASTM F2005, ASTM F2004, ASTM F2082
• Transformation temperature: Austenite finish (Af) temperature range 30°C to 75°C
• (Determined in the fully solution annealed condition by DSC testing)

• Typically used in shape memory nickel titanium alloy devices and actuators
• Applicable industry standards: ASTM F2005, ASTM F2004, ASTM F2082
• Transformation temperature: Austenite finish (Af) temperature range 75°C to 120°C
• (Determined in the fully solution annealed condition by DSC testing)

• Typically used in shape memory nickel titanium alloy coupling devices
• Transformation temperature: Martensite start (Ms) temperature range <-100°C
• (Determined in the fully solution annealed condition by CLD testing at 40ksi load)

• Typically used in shape memory nickel titanium alloy coupling devices that need the cryogenic martensite
transformations temperatures but also need room temperature storage capability
• Transformation temperature: Austenite start (As) temperature range >30°C (dependent on composition)
• (Determined in the fully solution annealed condition by CLD testing at 40ksi load)

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

ATI 30, CP Grade 1, ATI 40, CP Grade 2, ATI 55, CP Grade 3, ATI 70, CP Grade 4 or Commercially Pure, titanium grades (UNS R50250, R50400, R50550, R50700) are used where high ductility combined with excellent corrosion resistance, moderate strength, and good weldability are desired. The four grade numbers (ATI 30, 40, 55, 70) refer to the approximate minimum yield strengths for each grade. The different grades are characterized by differences in oxygen levels. These three titanium grades may be produced by single melt EB (electron beam) processing, or in a multiple melting practice with a final VAR (vacuum arc remelt). Typical product forms are billet, rolled bar, rod, and drawn wire products for applications such as airframe skin and structural components, cryogenic vessels, heat exchangers, chemical processing equipment, and medical and surgical device applications.

ATI 30, CP Grade 1, ATI 40, CP Grade 2, ATI 55, CP Grade 3, ATI 70, CP Grade 4 or Commercially Pure, titanium grades (UNS R50250, R50400, R50550, R50700) are used where high ductility combined with excellent corrosion resistance, moderate strength, and good weldability are desired. The four grade numbers (ATI 30, 40, 55, 70) refer to the approximate minimum yield strengths for each grade. The different grades are characterized by differences in oxygen levels. These three titanium grades may be produced by single melt EB (electron beam) processing, or in a multiple melting practice with a final VAR (vacuum arc remelt). Typical product forms are billet, rolled bar, rod, and drawn wire products for applications such as airframe skin and structural components, cryogenic vessels, heat exchangers, chemical processing equipment, and medical and surgical device applications.

ATI 30, CP Grade 1, ATI 40, CP Grade 2, ATI 55, CP Grade 3, ATI 70, CP Grade 4 or Commercially Pure, titanium grades (UNS R50250, R50400, R50550, R50700) are used where high ductility combined with excellent corrosion resistance, moderate strength, and good weldability are desired. The four grade numbers (ATI 30, 40, 55, 70) refer to the approximate minimum yield strengths for each grade. The different grades are characterized by differences in oxygen levels. These three titanium grades may be produced by single melt EB (electron beam) processing, or in a multiple melting practice with a final VAR (vacuum arc remelt). Typical product forms are billet, rolled bar, rod, and drawn wire products for applications such as airframe skin and structural components, cryogenic vessels, heat exchangers, chemical processing equipment, and medical and surgical device applications.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.

ATI offers corrosion-resistant commercially pure titanium produced as plate, sheet, and strip products. Titanium’s low density and high strength-to-weight ratio make it the material of choice for many corrosive chemical environments, including oxidizing chloride solutions (including seawater) and chlorine-based bleaches.