TB6 (Ti-10V-2Fe-3Al / Ti-10-2-3) Near-Beta Titanium Alloy

TB6 is a Chinese near-β titanium alloy of nominal composition Ti-10V-2Fe-3Al, identical to the well-known international alloy Ti-10-2-3 (Ti-1023). It offers high specific strength, excellent fracture toughness, good stress-corrosion resistance and low forging temperature, and is a standard structural titanium for aircraft landing gear and wing spars.

Overview

• Material: TB6 — Ti-10V-2Fe-3Al near-β titanium alloy
• International equivalent: Ti-10-2-3 / Ti-1023
• Available forms: Bar, plate, forgings and custom profiles

Chemical Composition (wt%)

Other elements: each ≤ 0.10 %, total ≤ 0.30 %.

Physical Properties

Mechanical Properties (solution-treated & aged)

Key Features

• High specific strength — strength with reduced structural weight;
• Good fracture toughness, resisting brittle failure under high stress;
• Lower forging temperature, reducing processing cost and energy;
• Good stress-corrosion cracking resistance in complex environments;
• Tunable strength / ductility / toughness balance via heat treatment.

Fabrication & Heat Treatment

• Melting: vacuum arc remelting (VAR) for uniform composition.
• Hot working: forged at 850–950 °C with controlled heating to avoid overheating / burning.
• Cold working: limited cold ductility; preheat before cold forming.
• Welding: reasonably good weldability by TIG and electron-beam welding with strictly controlled parameters.
• Solution treatment: 760–815 °C (typically 800 ±10 °C) for 3–30 min, air cool or faster.
• Ageing: 450–550 °C (typically 500 ±10 °C) for 8–24 h, air or furnace cool.
• Stress-relief annealing: 650–700 °C for 30–60 min, air or furnace cool.

Typical Applications

• Aerospace: aircraft landing gear, wing spars and engine components — used on Boeing 757 / 777, Airbus A320, B-1B, Mirage 2000 and Lynx helicopters;
• Automotive: engine components and chassis suspension systems for lightweighting and fuel efficiency;
• Sports: high-end bicycle frames and golf-club components.

For detailed datasheets, mill certificates (EN 10204 3.1) or inquiries on specific sizes and tolerances, please contact our sales & engineering team.