TC4ELI Titanium

Update : 2026-02-25

TC4ELI Titanium
TC4ELI (Ti-6Al-4V ELI) is an extra-low interstitial alpha-beta titanium alloy, a high-purity upgrade of standard TC4. It features ultra-low oxygen, iron, and impurity levels, delivering superior fracture toughness, fatigue resistance, and cryogenic stability. It retains low density, high strength-to-weight ratio, excellent corrosion resistance, and good weldability. With outstanding biocompatibility, it is widely used in medical implants, aerospace critical components, cryogenic equipment, and high-performance structural parts requiring high purity and reliability.
Equivalent Grade

Chinese Standard: TC4ELI / Ti-6Al-4V ELI

UNS R56401

W.Nr.: 3.7164

Standard

● Sheet/Plate: GB/T 3621

Seamless Pipe: GB/T 3624

Bar: GB/T 2965

ASTM B265 (Sheet), ASTM B348 (Bar), ASTM F136 (Medical Grade)

Alloy TypeAlpha-Beta Titanium Alloy (Ti-Al-V Alloy, Ultra-Low Interstitial, High Purity, High Strength & Toughness Type)
StandardSheet, Bar, Pipe, Tube, Forgings, Flange, Welding Materials, Precision Castings, Medical Implants, Aerospace Precision Components
Key Properties

● Optimized based on TC4, ultra-low interstitial element (oxygen, nitrogen, carbon) content, higher purity, and better toughness than TC4

Ultra-high specific strength, strength close to TC4, better plasticity and impact toughness, not easy to brittle fracture

Excellent corrosion resistance, resistant to seawater, chloride ions and various corrosive media, equivalent to TC4

Extremely good weldability, no obvious performance degradation after welding, biocompatibility far superior to ordinary TC4, meeting medical standards

Applicable EnvironmentMedical Implants, Aerospace Precision Components, Deep-Sea Detection, High-End Equipment, Low-Temperature Working Conditions, High Toughness Requirement Scenarios
Typical ApplicationsOrthopedic Implants (Artificial Joints, Bone Plates), Aerospace Engine Precision Components, Aircraft Hydraulic Pipes, Deep-Sea Detector Components, High-End Medical Devices, Low-Temperature Vessels, etc.


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