Uses of Gr2 Polished Titanium Wire
Gr2 (TA2) polished titanium wire is a specialty metal material made from industrially pure titanium through precision machining and surface polishing. Its core component contains ≥99.5% titanium, while impurity elements (such as iron, carbon, nitrogen, hydrogen, and oxygen) are strictly controlled to less than 0.4%. This gives it excellent corrosion resistance, high specific strength, and biocompatibility. After polishing, its surface finish can reach Ra ≤ 0.8μm, free of oxide films, cracks, and impurity defects, making it an indispensable key material in high-end manufacturing.
Medical Devices
Gr2 polished titanium wire is widely used in the manufacture of implantable medical devices due to its outstanding biocompatibility. Its surface polishing process significantly reduces tissue friction, minimizes postoperative inflammation, and improves the material's fatigue resistance. Typical applications include:
Orthopedic Fixation Systems
Used in the manufacture of cranial repair meshes, spinal fixation screws, and bone plates. For example, in skull defect repair, Gr2 titanium wire with a diameter of 0.3mm-0.5mm is woven into a three-dimensional mesh structure. Its polished surface promotes bone cell adhesion and growth, shortening the repair cycle by 30% compared to traditional materials.
Dental Implants
As the core material for implant connecting rods, its corrosion resistance protects against long-term erosion by oral saliva and food debris. Clinical data shows that Gr2 titanium wire implants have a service life exceeding 20 years, with a success rate of 98.7%.
Cardiovascular Stents
In drug-eluting stents, Gr2 titanium wire serves as the base material. Its polished surface allows for uniform loading of anti-proliferative drugs while preventing restenosis caused by metal ion release.
Aerospace
Gr2 titanium wire has a density of only 60% that of steel, yet boasts a tensile strength of 539 MPa, making it a key material for weight reduction and efficiency improvement in the aerospace industry. Its polishing treatment reduces surface roughness, minimizing aerodynamic drag during high-speed flight.
Fastener Manufacturing
It is used in the production of aircraft skin rivets and engine blade locks. For example, the C919 passenger aircraft uses over 100,000 Gr2 titanium wire rivets, reducing weight by 200kg per flight and improving fuel efficiency by 5%.
Fluid Control Systems
In rocket propellant pipelines, sealing gaskets braided with Gr2 titanium wire can withstand extreme temperature fluctuations from -196°C to 350°C, and the polished surface prevents media residue, ensuring zero system leakage.
Electromagnetic Shielding Components
The non-magnetic properties make it an ideal material for satellite antenna brackets. After polishing, the surface conductivity increases by 20%, effectively shielding against cosmic ray interference.
Industrial Filtration and Chemical Equipment
Gr2 titanium wire exhibits excellent stability in strong acid, strong alkali, and high-temperature environments. Its polished surface further improves filtration efficiency and equipment life:
Seawater Desalination Filters
In multi-stage flash evaporation (MSF) units, Gr2 titanium wire with a diameter of 0.1mm-0.5mm is woven into a gradient pore size filter, which intercepts 99.9% of suspended particles while resisting corrosion from seawater chloride ions and extending its service life five times that of stainless steel filters.
Chemical Reactor Internals
Used in the manufacture of heat exchanger tube bundles used in sulfuric acid and nitric acid production. For example, in a 300,000-ton annual sulfuric acid plant, Gr2 titanium wire heat exchanger tubes can operate continuously for eight years without perforation, reducing maintenance costs by 70% compared to ordinary carbon steel pipes.
Food-Grade Filtration Systems
The surface polishing process meets FDA standards and is widely used for microfiltration in beer brewing and dairy processing. The 0.02mm pore size titanium wire filter achieves sterile filtration while preventing metal ion leaching and product contamination.
Gr2 polished titanium wire, with its multi-dimensional performance advantages, has become a "versatile material" in high-end manufacturing. With the rapid development of the aerospace, marine engineering, and biomedical industries, market demand is growing at an average annual rate of 8%. In the future, with continued breakthroughs in surface modification technology, Gr2 titanium wire will demonstrate greater potential in emerging fields such as nuclear power equipment and hydrogen storage and transportation, driving the global materials industry towards high performance and long life.
