Ti-15V-3Al-3Cr-3Sn Titanium Foil

1. Introduction

Ti-15V-3Al-3Cr-3Sn titanium foil is an ultra-thin near-β titanium alloy strip developed for high-end precision manufacturing.

It is produced via vacuum melting, hot rolling breakdown, multi-pass precision cold rolling and solution & aging heat treatment (Complex forming is performed in the solution-treated state, while final high strength is achieved in the aged state, enabling control over processing and performance).

The key advantage of this material is its formability and end-use strength can be controlled separately as required.

In practical engineering applications, different titanium materials exist some differences:

• Gr1 Titanium Foil: highest ductility, the lowest strength, applyfor extreme forming operations
• Gr2 Titanium Foil: well-balanced overall properties, suitable for general industrial applications
• Gr4 Titanium Foil: the highest strength among pure titanium grades, with improved load-bearing capacity but increased processing difficulty
• Gr5 Titanium Foil: a high-strength structural material, difficult to cold-form
• Ti-15V-3Al-3Cr-3Sn Titanium Foil: Complex forming is performed in the solution-treated state, while final high strength is achieved in the aged state, enabling control over processing and performance.

2. Standard Specifications

• Thickness range: 0.02-1.0 mm
• Width range: 15-680 mm
• Supply form: coil/ strip/Fixed-length sheet(support customization)
• Surface: bright surfact/matter surface
• Customizable thickness: ≧0.005mm, suitable for high‑end precision industrial scenarios such as microelectronics and optics.

3. Production Process and Equipment Capabilities

• Melting → Forging → Hot Rolling Breakdown → Multi‑pass 20‑high Precision Cold Rolling → Ultrasonic Cleaning → Continuous Online Annealing → Skin Pass Treatment → Slitting → Inspection and Packaging.
• Key equipments: Core Equipment: 750 mm 20‑high Precision Rolling Mill, Ultrasonic Cleaning Line, Continuous Annealing Line, High-Precision Leveling Line, Slitting Line, Grinding Line.

4. Key Equipments and Process Capabilities

• 20-high Precision Rolling Mill: Maximum rolling speed 400 m/min, maximum rolling force 3500 kN, enabling stable thickness reduction and flatness control for ultra-thin strips.
• Ultrasonic Cleaning Line: Surface dyne level can reach above 40 after cleaning, maximum line speed of 30 m/min. It balances efficiency and cleanliness, ideal for applications demanding in high surface quality.
• Continuous Annealing Line: Adopting 7‑zone electric heating control, it achieves a maximum temperature of 1100℃ with a temperature control accuracy of ±2℃. Supports non-stop continuous annealing to ensure uniform microstructure and consistent performance.
• High-Precision Leveling Line: Maximum speed 150 m/min, effectively improving strip flatness and reducing residual stress for more stable subsequent processing.
• Slitting Line: Strips thickness from 0.02–1.0 mm, width: tolerance controlled to ±0.1 mm, meeting with high-precision slitting requirements.
• Grinding Line: Used for surface functional treatments to improve surface uniformity and adhesion, enhancing performance in subsequent coating, bonding and general industrial applications.