Titanium is a lustrous transition metal with a silver color, low density, and high strength. It is a strong and lightweight refractory metal. Titanium is resistant to corrosion in sea water, aqua regia and chlorine. Alloys of titanium are critical to the aerospace industry but, due to their numerous unique properties, are also used in medical, chemical and military applications, as well as in sporting goods.
Shah International supplies the below Titanium Grades : Titanium Grade 2, Titanium Grade 5, Titanium Grade 7
Titanium Grade 2 is unalloyed Titanium with standard Oxygen. It is called the “workhorse” of the commercially pure titanium industry, thanks to its varied usability and wide availability. It possesses good weldability, strength, ductility and formability.
Titanium Grade 2 Chemical Composition, %:
C |
Fe |
H |
N |
O |
Ti |
0.1 Max |
0.3 Max |
0.015 Max |
0.03 Max |
0.25 Max |
99.2 |
Titanium Grade 2 ASTM Specification:
Pipe Smls |
Pipe |
Tube Smls |
Tube |
Sheet / Plate |
Rod and Bar |
B861 |
B862 |
B338 |
B338 |
B265 |
B348 |
Mechanical Properties of Titanium Grade 2:
Ultimate Tensile Strength |
344 MPa or 49900 psi |
Yield |
(0.2 % offset) |
Elongation |
20 % |
Titanium Grade 5 alloy is the most widely used titanium grade. It is a two phase α+βtitanium 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). Ti-6Al-4V, Grade 5 alloy is used in the annealed condition and in the solution treated and aged condition. This alloy is produced by primarymelting using vacuum arc (VAR), electron beam (EB), or plasma arc hearthmelting (PAM). Remelting is achieved by one or two vacuum arc steps.
Titanium Grade 5 Chemical Composition, %:
Al |
Fe |
O |
Ti |
V |
6 |
0.25 Max |
0.2 Max |
90 |
4 |
Titanium Grade 5 ASTM Specification:
Specification Minima
Sheet / Plate |
Rod and Bar |
B265 |
B348 |
Mechanical Properties of Titanium Grade 5:
Ultimate Tensile Strength |
1170 MPa or 177000 psi |
Yield |
(0.2 % offset) |
Elongation |
10 % |
Titanium Grade 7 is an unalloyed titanium grade with standard oxygen content and addition of palladium. It is used mildly reducing or fluctuating conditions. At room temperature it is an alpha alloy. It transforms to beta phase at 913°C, and the alpha phase returns on cooling 890°C.
Titanium Grade 7 Chemical Composition, %:
C |
N |
Ti |
Fe |
O |
H |
Pd |
0.08 max |
0.03 max |
Balance |
0.30 max |
0.25 max |
0.015 max |
0.12-0.25 |
Titanium Grade 7 ASTM Specification:
Pipe Smls |
Pipe |
Tube Smls |
Tube |
Sheet / Plate |
Rod and Bar |
Forgings |
B337 |
B337 |
B338 |
B338 |
B265 |
B348 |
B381 |
Mechanical Properties of Titanium Grade 7:
Typical Mechanical Properties, Annealed:
Tensile Strength |
345 MPa or 50 Ksi min |
Yield |
(0.2 % offset) |
Elongation in 2” |
20 % |