AMS 4902 Gr2 Titanium Foil Description
1. Introduction
AMS 4902 Gr2 Titanium Foil is an ultra-thin foil made from Grade 2 commercially pure titanium (Ti≥99.2%), produced according to the AMS 4902 aerospace material specification. It is designed for aerospace and other high-reliability industrial applications. The material offers an excellent balance of strength, ductility, and corrosion resistance, making it a key lightweight solution for non–high-strength titanium alloy applications.
Compared with standard ASTM B265 products, AMS 4902 has stricter requirements for chemical composition control, mechanical property consistency, surface quality, and batch-to-batch uniformity. This makes it suitable for aerospace structures and system components where reliability and full traceability are critical.
Typical applications include thin-wall aircraft structural parts, piping systems, thermal shielding components, and engine auxiliary parts.
2. Standard Specifications
Thickness: 0.02–1.0 mm;
Width: 15-680 mm;
Customizable thickness: ≧0.005mm, suitable for high‑end precision industrial scenarios such as microelectronics and optics.
3. Production Line Process & Equipment Capabilities
Process flow: Melting → Forging → Hot Rolling Breakdown → Multi‑pass 20‑high Precision Cold Rolling → Ultrasonic Cleaning → Continuous Online Annealing → Skin Pass Treatment → Slitting → Inspection and Packaging.
Major 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
- 20-high Precision Rolling Mill
- Maximum rolling speed: 400 m/min, maximum rolling force: 3500 KN. Enables stable thickness reduction and precise flatness control for ultra-thin strip.
- Ultrasonic Cleaning Line: Surface dyne value reaches above 40 after cleaning, with a maximum line speed of 30 m/min, ideal for high-standard surface requirements.
- Continuous Annealing Line
1). Adopting 7‑zone electric heating control.
2). Maximum operating temperature: 1100℃.
3). Temperature control accuracy: ±2℃.
4). Non-stop continuous annealing to ensure uniform microstructure and stable material properties.
- High-Precision Leveling Line: Maximum speed: 150 m/min. Effectively improve strip flatness, reduce residual stress, and enhance stability of subsequent processing.
- Slitting Line: Precision slitting for strip range from 0.02–1.0 mm in thickness, with width tolerance control within ±0.1 mm to meet high-precision slitting requirements.
- Grinding Line: Used for functional surface treatment. Improve surface consistency and adhesion, enhancing performance for subsequent coating, lamination and general industrial applications.
Technical Specifications
Basic Data
| Item | Content |
| Product name | AMS 4902 Gr2 Titanium Foil |
| Material | Grade 2 commercially pure titanium |
| Standard | AMS 4902/ASTM B265 |
| Ti purity | ≥99.2% |
| Product form | Ultra-thin foil/strip/coil |
Dimension Specifications
| Item | Specification range |
| Thickness | 0.02-1.0 mm (custom to 0.005-0.02 mm) |
| Width | 15-680 mm |
| Length | Customizable |
Chemical Composition
| Element | Ti | O | Fe | C | N | H |
| Percentage | Balance (≥99.2%) | ≤0.25% | ≤0.30% | ≤0.10% | ≤0.05% | ≤0.015% |
Physical Properties
| Properties | Value |
| Density | 4.51 g/cm³ |
| Melting point | 1668 ℃ |
| Temperature resistance | ≤350 ℃(Long-term)/≤540 ℃(Short-term) |
| Resistivity | 0.56 μΩ·cm |
Mechanical Properties（Annealed）
| Properties | Value |
| Tensile Strength | ≥345 MPa |
| Yield Strength | 275–410 MPa |
| Elongation | ≥20% |
Features of AMS 4902 Gr2 Titanium Foil
- Aerospace-grade quality: Meets AMS standards with stable batch quality.
- Lightweight: Low density, helps reduce structural weight.
- Balanced strength and ductility: Suitable for complex thin parts.
- Corrosion resistant: Performs well in harsh environments.
- Good weldability: Suitable for TIG, laser, and electron beam welding.
- Clean surface: Free of pinholes and cracks, suitable for high-end use.
Core Technical 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
Aerospace Structures
- Aircraft fuselage skin
- Door and interior structural components
- Lightweight support parts
Power & Engine Systems
- Engine accessories
- Piping systems
- Thermal insulation and shielding materials
Avionics & Equipment
- Radomes (antenna covers)
- Electromagnetic shielding components
- Instrument brackets
Space Applications
- Rocket structural components
- Fuel tanks
- Spacecraft lightweight structures
Custom Processing Capabilities
1. Production Line Strength
Baoji Titanium Valley Ti-Ni-Zr Material Processing Co., Ltd. has invested $36.2 million in high-end strip and foil production, building advanced production lines for titanium and alloy materials.
Annual capacity: 3,000 tons;
Supports large-scale aerospace-grade supply;
2. Advanced Equipment
A. 750 mm 20-high precision rolling mill
B. Ultrasonic Cleaning Line
C. Continuous Annealing Line
D. High-Precision Leveling Line
E. Slitting line
F. Grinding Line
3. One-stop Customization
Thickness: 0.02–1.0 mm(ultra-thin available)
Width: 15-680 mm
Surface: bright/functional surface
Processing: slitting, leveling, cut-to-length
Delivery: stable bulk supply