Overview
TC4 titanium rod, also known as Grade 5 titanium or Ti-6Al-4V, is the most widely used titanium alloy globally. Comprising 6% aluminum and 4% vanadium, it offers an optimal balance of strength, corrosion resistance, and workability. As an alpha-beta alloy, TC4 maintains excellent mechanical properties across a wide temperature range (-250°C to 400°C). Its biocompatibility makes it indispensable for medical applications, while its aerospace-grade performance justifies its higher cost compared to commercial pure titanium grades.
Physical and Chemical Properties
TC4 rods exhibit a density of 4.43 g/cm³, about 60% of steel's density, with tensile strength reaching 895-930 MPa. The alloy's corrosion resistance stems from its stable oxide layer, protecting against seawater, chlorides, and acidic environments. Notably, TC4 maintains strength at elevated temperatures and demonstrates good fatigue resistance. Its thermal conductivity (6.7 W/m·K) and electrical resistivity (1.78 μΩ·m) are relatively low, requiring special consideration during machining and welding processes.
Main Applications
In aerospace, TC4 rods manufacture landing gear components, engine mounts, and airframe structures. The medical industry uses them for orthopedic implants and surgical instruments due to their osseointegration capabilities. Industrial applications include marine hardware, chemical processing equipment, and high-performance automotive parts. The oil/gas sector employs TC4 rods for downhole tools and riser systems where corrosion resistance is critical.
Safety and Storage
While non-toxic, TC4 rods require standard metalworking precautions: use proper ventilation when grinding, and wear PPE to prevent metal dust inhalation. Store rods in dry conditions to prevent surface contamination. Titanium is non-magnetic and non-sparking but combustible in powder form. Firefighting requires Class D extinguishers for titanium fires. For medical-grade rods, maintain cleanroom packaging until use.
B2B Procurement Guide
Specify required standards (ASTM B348 for rods, AMS 4928 for aerospace) and testing certifications. Critical dimensions include diameter tolerance (typically ±0.1mm) and straightness (≤1mm/m). Surface finishes range from mill finish (Ra 3.2μm) to polished (Ra 0.4μm). Lead times vary: standard sizes may ship in 2-4 weeks, while custom alloys/extrusions require 8-12 weeks. Bulk orders (500kg+) often secure 5-15% discounts.
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