Gr5 titanium rods (Ti-6Al-4V) perform best in the following corrosive environments:

1. ‌ chloride environment (e.g. seawater, salt spray) ‌

In chlorine containing media (such as seawater or salt spray), Gr5 titanium rods can effectively resist pitting and crevices corrosion due to the formation of a dense oxide film (TiO₂) on the surface, and can withstand a concentration of up to ‌10% NaCl solution ‌‌.

Long-term exposure to the Marine environment, anti-microbial adhesion and electrochemical corrosion ability is outstanding, widely used in Marine components and submarine pipelines ‌.

2. ‌ acidic environment (dilute sulfuric acid, hydrochloric acid, organic acid) ‌

In dilute sulfuric acid (≤10%), dilute hydrochloric acid (≤5%) and organic acids (such as acetic acid), the corrosion rate is significantly lower than that of stainless steel (such as 304/316L), which is suitable for chemical equipment and reaction vessels ‌.

‌ exceptions ‌ : at high temperatures (>190 ° C) or high concentrations (e.g. 40% nitric acid) in acidic environments, inhibitors such as silicone oil may be added to reduce the risk of corrosion ‌.

3. ‌ neutral and oxidizing medium ‌

In neutral solution (such as pure water, buffer solution) and oxidizing medium (such as oxygen-containing environment), titanium has a strong passivation ability, and the corrosion rate is usually lower than ‌ 0.0025mm/year ‌, suitable for the manufacture of heat exchangers and nuclear power plant components ‌.

4. ‌ High temperature environment (≤400 ° C) ‌

Below 400℃, the oxide film remains stable, long-term use without significant corrosion weight gain, suitable for high temperature parts of aircraft engines and thermal pipelines ‌.

Short-term tolerance temperature up to 550℃, but need to avoid severe oxidation conditions (such as molten salt environment) ‌.

5. ‌ Biomedical environment (human body fluids) ‌

Due to its excellent biocompatibility and non-toxic ion precipitation, Gr5 titanium rods have excellent corrosion resistance in human body fluids (such as blood and tissue fluids), and are widely used in orthopedic implants and dental instruments ‌.