AMS 4983 Ti-15V-3Al-3Cr-3Sn Titanium Foil

1. Introduction

AMS 4983 Ti-15V-3Al-3Cr-3Sn Titanium Foil is a high-strength near-beta titanium alloy foil designed for advanced aerospace structural applications, manufactured under AMS 4983 aerospace material standards. It is produced through vacuum melting, multi-stage thermo-mechanical processing, precision rolling, and controlled heat treatment to achieve ultra-high strength, excellent hardenability, and stable microstructure. Compared with conventional titanium alloys such as Ti-6Al-4V (Gr5), this material provides significantly higher strength after aging, making it suitable for critical aerospace components requiring maximum load-bearing capability and structural reliability.

Benefits in Aerospace Use

• Ultra-high strength after aging treatment, suitable for extreme load-bearing aerospace structures.
• Excellent hardenability enables precise strength control through heat treatment.
• High strength-to-weight ratio supports advanced lightweight structural design.
• Good fatigue resistance ensures stable performance under long-term cyclic stress and vibration.
• Good fracture toughness improves structural safety and damage tolerance.

Comparison with Aerospace Titanium Foil Grades

AMS 4902 Gr2 Titanium Foil:
• Balanced strength and ductility;
• Most widely used commercially pure titanium grade in aerospace applications.

AMS 4901 Gr4 Titanium Foil:
• Highest strength among commercially pure titanium grades;
• Better load-bearing capability than Gr2, but lower formability.

AMS 4911 Gr5 Titanium Foil (Ti-6Al-4V):
• High strength with good fatigue resistance and corrosion resistance;
• Widely used for high-performance aerospace structural applications.

AMS 4983 Ti-15V-3Al-3Cr-3Sn Titanium Foil:
• Highest strength among common aerospace titanium alloys after aging;
• Exceptional hardenability enables precise mechanical property tuning;
• Designed for extreme load-bearing and primary structural aerospace components;
• Best choice for maximum strength, stiffness, and structural reliability requirements.

2. Standard Specifications

Thickness range: 0.02-1.0mm

Width range: 15-680 mm

Supply form: coil/strip/fixed-length sheet(support customization)

Surface: bright surfact /matter surface

Customizable thickness: ≧0.005 mm

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: 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.