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Titanium (or Ti on the periodic table) is a lightweight metal with a wide range of useful properties from corrosion resistance to strength retention at extreme temperatures. You can purchase it both in pure and alloyed form. Note that even pure titanium has some (less than 1%) iron and oxygen content. More advanced alloys significantly improve the overall strength of titanium.
Titanium is an advanced material with excellent corrosion resistance, biocompatibility, and strength-to-weight characteristics. This unique range of properties makes it an ideal choice for many of the engineering challenges faced by the medical, energy, chemical processing, and aerospace industries. Select Titanium CNC machining in the FlagShip Instant Quoting Engine℠.
This grade is essentially a pure (99%) form of unalloyed titanium. It has excellent corrosion resistance characteristics and is easier to machine than other titanium alloys. Grade 2 is typically the best option when aqueous corrosion resistance is desired. Desalination components and medical implants are some of its applications.
Titanium (Grade 2) Properties
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm^3) |
|---|---|---|---|---|
| 341 | 242 | 26 | 200 | 4.52 |
Titanium Grade 5 or Ti 6Al-4V is the most popular alloy of titanium. Its primary alloying elements are aluminum and vanadium. It also contains a small amount of nickel, palladium, and ruthenium that improve its corrosion resistance far above that of standard titanium. This alloy is significantly stronger than Grade 2 and retains its corrosion-resistant properties at a wide temperature range. Grade 5 is a common choice for engine components and aircraft airframes.
Titanium (Grade 5) Properties
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm^3) |
|---|---|---|---|---|
| 880 | 239 | 15 | 332 | 4.52 |
As machined (standard): This standard finish leaves the part in its original state after machining. FlagShip can achieve 125 Ra or better. Finishing passes can be performed to further refine the surface roughness. This is the most common surface finish for Titanium.
Powder coating: Powder coating creates an excellent and robust surface finish. Titanium is corrosion resistant to a wide array of chemicals, but some, like chlorides, still pose a challenge. Powder coating can be used to improve its anti-corrosion properties in these situations.
Bead blasting: This process creates a smooth and uniform matte finish by lightly blasting the surface. This surface finish is generally applied for cosmetic purposes.
