TC4 Round Titanium Alloy Rod with High Corrosion Resistance for Aerospace and Medical Grade TC4ELI Applications

TC4 (Ti-6Al-4V) titanium alloy rods are high-performance materials available in various forms including solid round bars, square bars, and hexagonal bars. These rods feature excellent mechanical properties and corrosion resistance suitable for demanding industrial applications.

• Material Type: α+β two-phase titanium alloy
• Product Form: Solid round bar (most common), square bar, hexagonal bar
• Surface Condition: Black surface bar (as hot-worked), turned bar, polished bar (bright polished surface)
• Functional Grade: Industrial grade TC4, medical grade TC4 (TC4ELI, extra-low interstitial elements)

• Smelting Process: Vacuum arc remelting (VAR) ≥ 2 times; high-end/medical grade adopts double or triple melting via vacuum induction melting + vacuum arc remelting (VIM+VAR)
• Forming Process: Hot forging → hot rolling → (cold drawing / cold rolling) → heat treatment → turning / polishing
• Heat Treatment Conditions:
  • Annealed condition (M): Most commonly used, balanced comprehensive properties
  • Hot-worked condition (R): Without heat treatment, high strength, slightly low ductility
  • Cold-worked condition (Y): Strengthened by cold drawing / cold rolling, high dimensional accuracy
  • Solution and aged condition (ST): Custom high-strength condition (section ≤ 25mm)

• Chinese Standard Grade: TC4, TC4ELI (medical grade)
• ASTM Standard Grade: Grade 5 (Gr.5), Grade 23 (Gr.23, equivalent to TC4ELI)
• Quality Grade: Standard grade, high-precision grade (tolerance h6‑h9), medical implant grade (ASTM F136)
• Standards Compliance: GB/T 2965-2010, GB/T 3620.1, GB/T 13810, ASTM B348, ASTM F136 (medical), AMS 4928 (aerospace), ISO 5832-3 (medical implants)

• Regular Size: Φ7mm ~ Φ300mm
• Small Size: Φ3mm ~ Φ20mm (precision / medical)
• Large Size: Φ200mm ~ Φ400mm (aerospace forging billet)
• Tolerance Precision: Standard grade (±0.5~1mm), high-precision grade (h8/h9, ±0.02~0.1mm)
• Note: TC4 bar is solid with no wall thickness parameter. For titanium tubes (hollow), wall thickness is generally 0.5~20mm.

• Extremely high specific strength: Density only 4.43 g/cm³ (60% that of steel), with tensile strength ≥ 900 MPa
• Excellent corrosion resistance: Forms dense oxide film in seawater, atmosphere and most acid-base environments
• Good thermal stability: Long-term service temperature up to 350-400℃, with strength retention rate > 80% at 400℃
• Balanced comprehensive properties: Well-matched strength, plasticity, toughness, weldability and machinability
• Excellent biocompatibility: Non-toxic, non-magnetic and compatible with human tissues
• Non-magnetic: Does not interfere with medical equipment such as MRI

• Raw Material Preparation: Titanium sponge + Al-V master alloy → mixing → electrode compaction
• Vacuum Melting: 2-3 times remelting in VAR furnace → high-purity ingot obtained
• Hot Working: Ingot heating (1100-1150℃) → billet forging → hot rolling into bars
• Heat Treatment: Annealing (700-800℃, air cooling) or solution aging
• Finishing: Turning / polishing → straightening → non-destructive testing (ultrasonic / eddy current)
• Inspection & Packaging: Composition / property / dimension inspection → rust-proof packaging → warehousing

• Aerospace: Engine components, fuselage structures, fasteners, landing gear parts
• Medical: Artificial joints, bone plates, screws, dental implants, surgical instruments
• Marine engineering: Seawater pipelines, deep-sea equipment, propeller parts
• Petrochemical industry: Corrosion-resistant valves, pumps, pressure vessels
• Automotive & sports: High-performance parts, bicycle frames, golf heads
• Precision electronics: Instrument housings, non-magnetic components