titanium sheet metal for sale

titanium sheet metal for sale

Applications of explosive bonding clad plate

>Petrochemical,

>Pharmaceutical,

>Light industry,

>Automobile,

>Anti-corrosion usage,

>Pressure vessels manufacturing,

>Electrical construction,

>Exchangers and finned tubes,

>Equipments for waste water treatment and flue-gas desulfurization

China’s petrochemical, aerospace, power, marine engineering and other industries continue to have strong demand for high-end titanium alloy products, and the market demand for titanium alloys is shifting from the low-end to the high-end. However, the number of high-end titanium alloy production enterprises in China is small, and the market supply is insufficient.

At this stage, only 10% of China’s titanium alloy products are used in high-end fields, while 50% of U.S. titanium alloy products are used in high-end fields. The gap between China’s titanium alloy industry and developed countries is relatively large. With the gradual increase of China’s large aircraft manufacturing and the continuous upgrade of military aircraft, the aviation industry’s demand for titanium alloys will continue to increase. From the perspective of the import unit price of China’s titanium alloy products in 2018, the import unit price is much higher than the export unit price, indicating that China’s high-end titanium alloy products are in short supply and the market depends on imports. The industry needs to continue to improve R & D and innovation capabilities, improve product performance, develop new functional products, and accelerate the pace of import substitution in the high-end titanium alloy market.

Titanium alloys are alloys composed of titanium based on the addition of other elements. Titanium has two kinds of heterogeneous crystals: below 882 ° C is a close-packed hexagonal structure α titanium, and above 882 ° C is a body-centered cubic β titanium. Alloying elements can be divided into three categories according to their influence on the phase transition temperature
①The elements that stabilize the α phase and enhance the phase to change the temperature are α stable elements, including aluminum, carbon, oxygen and nitrogen. Its aluminum is the primary alloying element of titanium alloy, which has obvious effects on increasing the strength of the alloy at normal temperature and high temperature, reducing the specific gravity and enhancing the elastic modulus.
②The element that stabilizes the β phase and lowers the phase transition temperature is the β stable element, and can be divided into two types: isomorphic and eutectoid. The former has molybdenum, niobium, vanadium, etc .; the latter has chromium, manganese, copper, iron, silicon, etc.
③The elements that have little effect on the phase transition temperature are neutral elements, such as zirconium and tin.

Nitrogen, carbon and hydrogen are the primary impurities of titanium alloys. Oxygen and nitrogen have greater solubility in the α phase, which has obvious effect on strengthening titanium alloy, but weakens the plasticity. It is generally stipulated that the content of oxygen and nitrogen in titanium is divided between 0.15 to 0.2% and 0.04 to 0.05%. The solubility of hydrogen in the α phase is very small, and too much hydrogen dissolved in the titanium alloy will have hydride, making the alloy brittle. Generally, the hydrogen content in titanium alloy is controlled below 0.015%. Hydrogen is reversible in titanium and can be removed by vacuum annealing.