Titanium Grades

Commercially Pure Titanium Grade 1 is the softest titanium and has the highest ductility. It has good cold-forming characteristics and provides excellent corrosion resistance. It also has excellent welding properties and high-impact toughness.

Commercially Pure Titanium Grade 2 has moderate strength and excellent cold forming properties. It provides excellent welding properties and has excellent resistance to oxidation and corrosion.

Commercially Pure Titanium Grade 3 is stronger and less formable than Titanium Grades 1 and 2. It is used in Aerospace and industrial applications that require moderate strength. Grade 3 titanium has excellent corrosion resistance.

Commercially Pure Titanium Grade 4 is stronger than CP Grades 2 & 3 – it can be cold formed, but has lower ductility. It has excellent corrosion resistance in a wide variety of environments. Grade 4 titanium is commonly used in Aerospace, Industrial and Medical applications where high strength is needed.

Titanium Grade 7 has physical and mechanical properties equivalent to CP3 titanium or Grade 2. It has excellent welding and fabrication properties and is extremely resistant to corrosion especially from reducing acids.

Titanium Grade 11 is highly resistant to corrosion has similar physical and mechanical properties to Titanium CP Grade 2.

Titanium Grade 5 alloy is the most commercially available of all titanium alloys. It offers an excellent combination of high strength and toughness. Grade 5 titanium has good welding and fabrication characteristics.

Titanium Grade 6 alloy offers good weldability, stability and strength at elevated temperatures.

Titanium Grade 9 has medium strength that falls between Grade 4 and Grade 5. It has excellent corrosion resistance and is used in Aerospace and Industrial applications. Grade 9 Titanium can be used at higher temperatures than Grades 1 through 4. Grade 9 titanium has good cold rolling properties.

This Titanium Grade 12 alloy is similar to Titanium Grades 2 and 3 except that Titanium Grade 12 has 0.3% molybdenum and 0.8% nickel. This offers enhanced corrosion resistance.

Titanium Grade 19 has very high strength and can be heat treated. It offers good resistance to stress and corrosion.

Titanium Grade 23 is similar to Grade 5 but has lower oxygen, nitrogen and iron. It has better ductility and fracture toughness than Titanium Grade 5.

Titanium 6-2-4-2 has excellent strength, stability, and creep resistance to temperatures as high as 550 °C.

Titanium 6Al-6V-2Sn is a two-phase, Alpha Beta Alloy. It is usually used in the annealed or solution treated and aged conditions. It’s a heat treatable, high strength alloy with lower toughness and ductility than Titanium Grade 5 (6Al-4V) and it’s difficult to weld. Cold forming of Titanium 6Al-6V-2Sn is difficult because of its high strength and the large amount of spring-back that results. This grade can be welded by the inert gas shielded, fusion welding process but the heat effected area will have less ductility and toughness than the parent material. The hardness of Titanium 6-6-2 is approximately Rockwell C 36-38. This grade is primarily used for airframe and jet engine parts, rocket engine cases and ordinance components. Please call us to determine our minimum item quantity.

Titanium 6Al-2Sn-4Zr-6Mo is an Alpha-Beta Alloy and it’s generally regarded as the workhorse alloy of the titanium industry. The alloy is fully heat-treatable in section sizes up to one inch and is used up to approximately 400°C (750°F). Since it is one of the most commonly used alloys (over 70% of all alloy grades melted are a sub-grade of Ti-6-4,) its uses span many aerospace engine and airframe components. Titanium 6Al-2Sn-4Zr-6Mo is also used in lots of non-aerospace applications such as marine, offshore and power generation industries. This Alpha-Beta Alloy combines good corrosion resistance and strength with weldability and fabricability. The alloy is generally available in bar form and it’s typically used in deep sour well applications. This alloy can be hot or cold formed. Please call us to determine our minimum item quantity.

Titanium 8Al-1Mo-1V is a near Alpha Alloy that was primarily designed for use at elevated temperatures – up to 455 degrees centigrade. It offers the highest modulus and lowest density of all Titanium alloys. It has good creep strength and it’s weldable by the inert gas fusion and resistance-welding processes. Titanium 8Al-1Mo-1V is used in the annealed condition for such applications as airframe and jet engine parts that demand high strength, superior creep resistance and a good stiffness-to-density ratio. The machinability of this grade is similar to that of Titanium 6Al-4V. Please call us to determine our minimum item quantity.

Titanium 10V-2Fe-3Al is a Titanium Beta Alloy. It is harder and stronger than many titanium alloys. This Titanium is a heat treatable alloy, it’s weldable and it’s easily formed. Titanium 10V-2Fe-3Al is an all Beta Alloy and is more difficult to machine than most titanium alloys. The chief problems include flank wear, spring-back and chip control. Because of these characteristics, positive rake chip grooves in combination with light hones on the cutting edge are advantageous. Please call us to determine our minimum item quantity.

This Metastable-Beta Alloy is used primarily in sheet metal form. It is age-hardenable and highly cold-formable. Titanium 15V-3-3-3 is often used to replace hot-formed Titanium Grade 5 (6Al-4V) sheets. It can also be produced as foil and is an excellent alloy for castings. For aerospace applications, this grade is often specified as AMS 4914. Please call to determine the minimum item quantity.

Commercially pure titanium and alpha alloys of titanium are non-heat treatable and have very good welding characteristics.

Titanium Beta or near Beta Alloys are:

• Fully heat treatable Generally weldable
• Capable of high strengths Possess good creep resistance up to intermediate temperatures
• In the solution-treated condition, excellent formability can be expected from Beta Alloys

Titanium Beta Alloys are ideal for sporing applications. Common Titanium Beta Alloys include:

Ti3Al8V6Cr4Mo4Zr

ASTM Grade 19
Ti-3Al-8V-6Cr-4Mo-4Zr

AMS 4983, 4984, 4987
Ti-10V-2Fe-3Al

ASTM Grade 21
Ti-15Mo-3Nb-3Al-2Si

AMS 4914
Ti-15V-3Cr-3Sn-3Al

The Metastable Titanium Beta Alloys are heat treatable by solution treatment and aging. Fully stable beta alloys can only be annealed.

Titanium Alpha Beta alloys are heat treatable and most of them are also weldable. The typical properties of Titanium Alpha Beta Alloys are:

• Medium to high strength levels;
• High temperature creep strength is not as less than most alpha alloys;
• Limited cold forming but hot forming qualities are normally good;

The most commonly used Titanium Alpha Beta Alloy is Ti 6Al-4V. Titanium 6Al-4V has been developed in many variations of the basic formulation for numerous and widely differing applications.

Other Titanium Alpha Beta Alloys include: 6Al-4V-ELI 6Al-6V-2Sn 6Al-2Sn-4Zr-2Mo 3Al-2.5V 8Mn