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The titanium industry's workhorse alloy is this alpha-beta composition. Titanium grade 5 has excellent tensile properties at room temperature and excellent creep resistance up to 300 oC. The material exhibits exceptional resistance to fatigue and crack propagation.
Titanium Grade 2 is an alpha-titanium that is completely pure. Grade 2 titanium is the most widely used form of titanium due to its moderate strength, excellent corrosion resistance, and formability.
Grade 2 titanium is slightly weaker than Grade 3, but stronger than Grade 1, and equally resistant to corrosion. Titanium grade 2 is magnetically inert. These properties contribute to the versatility of Grade 2 titanium in terms of application.
As is the case with the majority of titanium alloys, Grade 5 exhibits exceptional corrosion resistance in the majority of natural and industrial process environments. Due to this alloy's ability to be aged and hardened, it is an excellent choice for springs and fasteners.
| Weight % | C | Fe | O | N | H | Ti |
|---|---|---|---|---|---|---|
| Min. | ||||||
| Max. | 0,080 | 0,30 | 0,25 | 0,03 | 0,015 | Bal. |
| Yield strength Rp0.2,MPa | Tensile strength Rm,MPa | Elongation[%] | Hardness[HRB] | Impact, Charpy-V[J] | |
|---|---|---|---|---|---|
| Min | 276 | 345 | 20 | 160 | |
| Max. | 448 |
This alloy is primarily use for corrosion resistance and is the most widely used specification in all product forms. Grade 2 titanium proves useful in chemical processes, since it is highly resistant to chemical environments including oxidizing media, alkaline media, organic acids and compounds, aqueous salt solutions and hot gases. Its corrosion resistance holds up in liquid metals, nitric acid, mildly reducing acids and wet chlorine or bromine gas. Grade 2 titanium is also used to manufacture heat exchangers and cryogenic vessels. In seawater, Grade 2 is fully resistant to corrosion at temperatures up to 300°C