Titanium bar is a relatively new material developed over the past 30 years, which is originally used in aerospace industry. This titanium rod has been widely used in aircraft structures, rocket pressure vessels, gas turbines and jet engines. The application of titanium rod in shipbuilding industry is late, it is mainly limited by the variable material and the expensive price. Even so, titanium bar still has been successfully applied to the complex shell of high performance and light hydrofoil Soviet military submarine and small submarine. In addition, it can also be used in special valves, heat exchangers, pumps and pipelines of shipbuilding industry

.
In the shipbuilding industry, titanium bar is the ideal structural material, it has high strength, in instruct water, it has the ability of local corrosion resistance and uniform corrosion resistance, it also has high fatigue limit and corrosion waste limit and sufficient fracture toughness. If properly controlled chemical composition, the titanium rod also has the performance of corrosion resistance to seawater.