Different Grades Of Titanium And Titanium Based Alloys

In addition to the 4 commercially pure titanium grades, there are other titanium grades and titanium alloys available.

Titanium

Titan Grade 7

Titan Grade 7 has physical and mechanical properties that correspond to those of CP3 titanium or Grade 2. It demonstrates good welding and processing properties and is highly resistant to corrosion, particularly against reducing acids.

Applications

Chemical processing, power generation, desalination

Standards

ASME SB-381, ASME SB-337, ASME SB-265, ASME SB-363, ASME SB-337, ASME SB-348, ASME SB-338, ASME SB-338

Available Forms

Bar, plate, forgings, sheet, welding wire, tube, wire

Titan Grade 11 - CP Ti-0.15Pd

Titan Grade 11 is extremely resistant to corrosion. It possesses mechanical and physical properties that compare with those of Titanium CP Grade 2.

Applications

Chemical processing, industry, desalination, power generation

Standards
ASME SB-338

Available Forms

Tube

Titanium Base Alloys

Titan Grade 5 - Titanium 6Al-4V

Titan Grade 5 is the most commonly available titanium alloy in trade. It provides a combination of toughness and high strength. It exhibits good processing and welding properties.

Applications

Aerospace, marine, chemical processing, medical

Standards

ASME SB-265, ASME SB-348, AMS 4911, AMS 4928, AMS 4967, AMS 4965

Titan Grade 6 - Titanium 5Al-2.5Sn

Titan Grade 6 is an alloy that offers good stability, weldability and strength at elevated temperatures.

Applications

Aerospace

Standards

ASME SB-381, MIL-T-9046, AMS 4966, ASME SB-348, MIL-T-9047, AMS 4956, ASME SB-265, AMS 4976, AMS 4926, AMS 4910

Available Forms

Bar, sheet, forgings, plate, wire

Titan Grade 9 - Titanium 3Al-2.5V

Titan Grade 9 has an intermediate strength between Grades 4 and 5. It shows high corrosion resistance and is used in both industry and aerospace. It operates at higher temperatures than Grades 1, 2, 3 and 4. It exhibits excellent cold-forming properties.

Applications

Aerospace, chemical processing, automotive, medical, consumer applications, shipping, transport

Standards

AMS 4944, AMS 4943, ASME SB-338

Available Forms

Bar, plate, forgings, wire, sheet

Titan Grade 12 - Ti-0.3-Mo-0.8Ni

Titan Grade 12 is an alloy that contains 0.8% nickel and 0.3% molybdenum. This composition results in improved corrosion resistance compared with Titanium Grades 2 and 3.

Applications

Chemical processing, power generation, desalination, industry

Standards

ASME SB-338

Available Forms

Tube

Titan Grade 19 - Titanium Beta C

Titan Grade 19 can be heat treated and exhibits exceptionally high strength. It provides good resistance to corrosion and stress.

Applications

Automotive, aerospace

Standards

MIL-T-9046, ASME SB-348, MIL-T-9047, AMS 4958, AMS 4957, ASME SB-265

Titan Grade 23 - Titanium 6Al-4V ELI

Titan Grade 23 is comparable to Titanium Grade 5. It contains lower amounts of oxygen, iron and nitrogen and exhibits improved fracture toughness and ductility in comparison with Titanium Grade 5.

Applications

Aerospace, marine, chemical processing, medical

Standards

AMS 4911, AMS 4930, AMS 4928, AMS 4931, AMS 4965, AMS 4935, AMS 4967, MIL-T-9046, AMS 4991, AMS 4985, MIL-T-9047, BSTA 10,11 and 12, DIN 3.7165, BSTA 28,56 and 59, AMS 4907 ELI, AMS 4956 ELI, AMS 4930 ELI, UNS R56407, ASTM F136 ELI

Available Forms

Bar, plate, forgings, welding wire, sheet, wire

Titanium 6Al-6V-2Sn - Titanium 6-6-2

Titanium 6-6-2 exhibits stability, strength and creep resistance at temperatures up to 550 °C.

Applications

Gas, engine afterburners, turbine compressors, aerospace

Standards

AMS 4919, AMS 4975, AMS 4952, DIN 3.7164, GE B50TF21, GE B50 TF22, GE B50TF22, MIL F-83142, GE C50TF7, MIL T-9046, MIL T-9047, UNS R54620, PWA 1220

Available Forms

Bar, sheet, plate

Titan 6Al-2Sn-4Zr-2Mo - Titanium 6-2-4-2

Titan 6Al-2Sn-4Zr-2Mo is an alpha-beta alloy. It is used in aged, annealed or solution-treated conditions. It is a high-strength, heat-treatable alloy with lower ductility and toughness than Titanium Grade 5 (6Al-4V) and is difficult to weld. Cold forming poses challenges because of strong springback and high strength. The alloy can be welded under protective gas, although the heat-affected zone shows reduced toughness and ductility compared with the base material. Its hardness is approximately Rockwell C 36–38. Please contact us to determine the minimum order quantity.

Applications

Airframe components, structural components, jet engine parts, rocket engine casings

Standards

MIL-T-9047, AMS 4981

Available Forms

Bar, sheet, wire, plate, fittings, forged components, seamless tubes, flanges, welded tubes

Titanium 6Al-2Sn-4Zr-6Mo - Titanium 6-2-4-6

Titanium 6Al-2Sn-4Zr-6Mo is an alpha-beta alloy. It is fully heat treatable in profiles up to one inch and is used at temperatures up to approximately 400 °C (750 °F). It is employed in many aerospace engine and airframe components, as well as in offshore, maritime and power generation applications. The alloy is typically supplied as a bar and is used for deep-sea drilling. It can be cold- or warm-formed. Please contact us to determine the minimum order quantity.

Applications

Aerospace engine components, maritime applications, aircraft components, power generation, offshore applications

Standards

AMS 4981

Available Forms

Bar, sheet, plate

Titan 8Al-1Mo-1V - Titanium 8-1-1

Titan 8Al-1Mo-1V is a near-alpha alloy developed for use at elevated temperatures up to 455 °C. It has the lowest density and the highest modulus among all titanium alloys. It exhibits excellent creep resistance and is weldable by resistance welding and shielded gas melting. It is used in the annealed condition for engine components and aircraft cells that require excellent creep resistance, high strength and a high stiffness-to-density ratio. Its workability is similar to that of Titanium 6Al-4V. Please contact us to confirm the minimum order quantity.

Applications

Jet engine components, aircraft cell components

Standards

MIL-T-9046, AMS 4972, MIL-T-9047, AMS 4973, AMS 4915, AMS 4916, AMS 4955

Available Forms

Forged components, sheets, bars, strips, plates, wires, extruded profiles

Titan 10V-2Fe-3Al

Titan 10V-2Fe-3Al is a titanium beta alloy. It is harder and stronger than many other titanium alloys. It is heat treatable and weldable and can be easily formed. As a fully beta alloy, it is more difficult to machine than most titanium alloys. The main machining challenges are springback, flank wear and chip control. Consequently, chipholding stages with lightweight stones at the cutting edge are advantageous. Please contact us to determine the minimum order quantity.

Applications

Airframe components, discs, wheels and spacers, compressor blades

Standards

AMS 4983, AMS 4986, AMS 4987, AMS 4984

Available Forms

Bar, plate, forgings, sheet, seamless tubes, wire, welded tubes

Titan 15V-3Cr-3Sn-3Al

This metastable beta alloy is predominantly available in sheet form. It exhibits excellent cold formability and age hardening properties. It is often used as a substitute for warm-formed sheets of Titanium Grade 5 (6Al-4V) and can also be supplied as foil for cast components. For aerospace applications, this grade is frequently specified as AMS 4914. Please contact us to determine the minimum order quantity.

Applications

Tank applications in aerospace, cast components, airframe applications, high-strength hydraulic tubes, fasteners

Standards

ASTM B265, AMS 4914

Available Forms

Foil, sheet

Titanium Alpha Alloys

Commercially pure titanium and alpha alloys are not heat treatable and demonstrate excellent weldability.

Applications

Cryogenic applications, chemical processing equipment, aircraft components

Standards

AMS 4973, AMS 4924, AMS 4976, MIL-T-9047, AMS 4972, GR-6 MIL-T9046, AMS 4910, AMS 4909, ASTM B265, AMS 4966, AMS 4915/4916, AMS 4966, AMS 4924, MIL-T-81556A A-1, AMS 4933, MIL-T-81556A A-4, MIL-T-81556A A-2

Available Forms

Bar, plate, forgings, sheet, extrusions

Titanium Beta Alloys

Titanium beta and near-beta alloys are fully heat treatable and are generally weldable. They provide high strength and good creep resistance at intermediate temperatures. Under solution-treated conditions, beta alloys can be easily formed. Frequently encountered titanium beta alloys include: Ti3Al8V6Cr4Mo4Zr, Ti-3Al-8V-6Cr-4Mo-4Zr, ASTM Grade 19, ASTM Grade 21, AMS 4983, AMS 4984 and AMS 4987, Ti-15Mo-3Nb-3Al-2Si, Ti-15Mo-3Nb-3Al-2Si, Ti-10V-2Fe-3Al, AMS 4914.

The metastable titanium beta alloys are heat treatable by ageing and solution annealing. Fully stable beta alloys can only be annealed.

Applications

Aerospace

Standards

ASTM Grade 19, AMS 4914, ASTM Grade 21, AMS 4984, AMS 4983, AMS 4987

Available Forms

Forgings

Titanium Alpha-Beta Alloys

Titanium alpha-beta alloys are heat treatable. Most of these alloys are weldable. They exhibit moderate to high strength and high-temperature creep resistance that is not inferior to that of other alpha alloys. Their cold forming quality is limited, whereas warm forming quality is generally very good. The most widely used titanium alpha-beta alloy is Ti 6Al-4V; other alloys in this category include 6Al-4V-ELI, 6Al-2Sn-4Zr-2Mo, 6Al-6V-2Sn and 3Al-2.5V 8Mn.

Applications

Airplane and turbine components, prosthetic devices, ship equipment, chemical processing equipment

Standards

ASME SB-265, ASME SB-348, AMS 4911, AMS 4965, AMS 4928, MIL-T-9047, AMS 4967, AMS 4930, AMS 4981, AMS 4930, MIL-T-9046, AMS 4971, AMS 4918, ASTM F 136, AMS 4908, DMS1879/2237, ASTM B348, AMS 4943, MIL-T-9047 G, BMS 7-348, AMS 4975, AMS 4928, AMS 4976, DMS 1570, AMS 4934, AMS 4920

Available Forms

Bar, flanges, fittings, forgings, sheet, plate, wire, tube

Conclusion

We thank you for reading this article. We hope it has provided detailed information on the various titanium grades and titanium alloys. If you require further information on titanium products, please visit Stanford Advanced Materials (SAM) for further details.

Stanford Advanced Materials (SAM) is a global supplier of titanium products and has over two decades of experience in the production and distribution of commercially pure titanium and titanium alloys. We trust that SAM will serve as your chosen titanium supplier and business partner.