AMS 4911 Gr5 Titanium Foil Description
1. Introduction
AMS 4911 Gr5 Titanium Foil is a high-strength titanium alloy foil (Ti-6Al-4V) designed for aerospace use, manufactured under AMS 4911/AMS aerospace standards. It is produced through vacuum melting, precision rolling, and controlled heat treatment to ensure high strength, stable microstructure, and reliable performance in demanding aerospace environments. Compared with commercially pure titanium, Gr5 offers significantly higher mechanical strength while maintaining good corrosion resistance and lightweight characteristics.
Benefits in Aerospace Use
- Much higher strength than commercially pure titanium, suitable for high-load aerospace parts.
- Excellent strength-to-weight ratio supports advanced lightweight structural design.
- Good fatigue resistance improves durability under long-term vibration and cyclic stress.
- Strong corrosion resistance ensures stable performance in harsh aerospace environments.
- Good formability for an alloy grade, suitable for complex aerospace components.
Comparison with Other Grades (AMS Titanium System)
Gr1 Titanium Foil:
• Highest ductility, lowest strength;
• Best for simple forming and flexible components.
Gr2 Titanium Foil:
• Balanced strength and formability;
• Most common commercially pure titanium for general aerospace use.
Gr4 Titanium Foil:
• Highest strength among commercially pure titanium grades;
• Preferred for load-bearing structural parts.
Gr5 Titanium Foil (Ti-6Al-4V):
• Highest overall strength among these grades;
• Best for high-performance, high-load, and critical aerospace structural applications.
2. Standard Specifications
Thickness range: 0.02-1.0 mm;
Width range: 15-680 mm;
Delivery form: coil/strip/cut-to-length plate (customizable);
Custom thickness available: ≧0.005mm;
3. Production Line Process & 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 equipment:
- 750 mm 20-high precision rolling mill
- Ultrasonic cleaning line
- Continuous Annealing Line
- High-Precision Leveling Line
- Slitting Line
- Grinding Line
4. Key Equipment & Process Capabilities
A. 750mm 20-high precision rolling mill: Enable precision rolling of ultra-thin, wide-width strips.
B. Ultrasonic Cleaning Line: Ensure surface cleanliness and uniform microstructure.
C. Continuous Annealing Line: Improve stability of material properties.
D. High-Precision Leveling Line: Enhance strip shape and flatness.
E. Slitting Line: High-precision slitting suitable for ultra-thin material.
F. Grinding Line: Optimize surface consistency and texture.
Technical Specifications
Basic Product Information
|
Item |
Detail |
|
Material brand |
Gr5 (Ti-6Al-4V) |
|
Material type |
α+β Titanium Alloy |
|
Standard |
AMS 4911 |
|
Product forms |
Foil/Strip/Coil |
|
Max thickness |
≤1.0 mm |
Specification
|
Item |
Range |
|
Thickness |
0.02-1.0 mm |
|
Width |
15-680 mm |
|
Length |
Customizable |
|
Surface |
Bright/Matte |
|
Condition |
Annealed (M)/cold-worked (Y) |
Chemical Composition
|
Element |
Al |
V |
Fe |
O |
C |
N |
H |
Ti |
|
Content |
5.50–6.75% |
3.50–4.50% |
≤0.40% |
≤0.20% |
≤0.08% |
≤0.05% |
≤0.015% |
Balance |
Physical Properties
|
Property |
Value |
|
Density |
4.51 g/cm³ |
|
Melting point |
1668 °C |
|
Elastic modulus |
110 GPa |
|
Thermal conductivity |
6.7 W/m·K |
|
Magnetism |
Non-magnetic |
Features
- High strength Ti-6Al-4V alloy, suitable for demanding aerospace structural applications.
- Excellent strength-to-weight ratio, supporting advanced lightweight design.
- Superior fatigue resistance for long-term cyclic loading and vibration conditions.
- Good corrosion resistance in aerospace and marine environments.
- Stable microstructure with reliable mechanical performance after controlled heat treatment.
- Good formability for an alloy grade, suitable for complex and precision aerospace components.
Technological Advantages
- Strict control over surface color difference to ensure uniform appearance and color consistency.
- Precise dimension control to meet tolerance specification requirement.
- Self-developed defatting formula can improve surface cleanliness.
- Optimized leveling tension to ensure excellent material flatness.
- Sanding process to enhance surface uniformity and texture.
- Stable annealing process to guarantee the overall material properties.
- High-precision slitting technology can increase product yield and quality.
Applications
- Aircraft structural components and load-bearing parts.
- Engine components and auxiliary engine systems.
- Aerospace fasteners, brackets, and support structures.
- Aircraft hydraulic and piping system components.
- High-stress thin-wall structural parts.
- Spacecraft structural and functional components.
- Landing gear-related auxiliary components.
- High-performance aerospace equipment and precision assemblies.
Custom Processing Capabilities
1. Production Line Strength
Annual capacity: 3,000 tons for high-end strip and foil materials.
2. Advanced Equipment Capabilities
750 mm 20-high precision rolling mill
Ultrasonic Cleaning Line
Continuous Annealing Line
High-Precision Leveling Line
Slitting line
Grinding Line
3. Comprehensive Processing Service
A. Materials: titanium, nickel, zirconium and their alloys
Specifications: thickness 0.02–1.0 mm, width 15-680 mm
B. Surface treatment: cleaning, sanding, annealing; available in bright, matte and other function surface
C. Dimensional & flatness control: precise control of thickness, tolerances and surface flatness
D. Slitting & cutting to length: suitable for ultra-thin wide strips with high yield and stable quality
E. Mass delivery: annual capacity of 3,000 tons to meet large-volume, high-standard custom orders