TC12 Alpha-Beta Titanium Alloy

TC12 is a Chinese high-zirconium α+β titanium alloy. After solution treatment and ageing it reaches high strength (≥ 1100 MPa) with good ductility and heat resistance up to about 450 °C, used for high-load aerospace structures, engine components and corrosion-resistant equipment.

Overview

• Material: TC12 — high-Zr α+β titanium alloy
• Nominal composition: Ti-(5.5–7.0)Al-(0.8–2.0)Mn-(0.8–2.0)Cr-(4.0–6.0)Zr-B (trace)
• Available forms: Bar, plate, forgings and custom profiles

Chemical Composition (wt%)

Fe / C / N / H / O limits are not stated on the source page — to be confirmed from the mill certificate.

Physical Properties

Mechanical Properties (heat treated)

Key Features

• High specific strength and hardness with lightweight design;
• Good heat resistance, stable service at 450 °C;
• Good corrosion resistance, especially in aerospace environments;
• Can be formed into required shapes by various processes.

Fabrication & Heat Treatment

• Machining: due to high hardness and wear resistance, use carbide or PCD tools at low speed with heavy cooling.
• Welding: moderate weldability; inert-gas-shielded welding recommended.
• Annealing: 750–800 °C, air or furnace cool, to relieve stress and refine structure.
• Solution treatment & ageing: solution treat at 950–980 °C, then age at 480–550 °C for 4–8 h to raise strength and hardness.

Typical Applications

• Aerospace: airframe structures, engine parts and turbine blades;
• Chemical equipment: corrosion-resistant piping and vessels;
• Other: high-performance sports equipment and automotive components.

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