Gr4 Titanium Foil Description
1. Introduction
Gr4 Titanium Foil is an ultra-thin titanium strip manufactured by precision rolling from Grade 4 industrial pure titanium with a titanium purity of no less than 99%.
Among all pure titanium foils, Grade 4 titanium foil offers the highest strength and stability, along with the lowest ductility, making it suitable for high-strength applications.
Among commercially purte titianium foils:
- Grade 1 Titanium Foil: high ductility, low strengh
- Grade 2 Titanium Foil: moderate ductility and strength
- Grade 4 Titanium Foil: lowset ductility and hignest strength
2. Standard Specifications
- Thickness range: 0.02-1.0mm
- Width range: 15-680mm
- Delivery form: coil/strip/cut-to-length plate(customizable)
Custom thickness available: ≧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 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 & 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: 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 functional surface treatment. Improve surface consistency and adhesion, enhancing performance for subsequent coating, lamination and general industrial applications.
Technical Specifications
Basic Product Information
| Items | Details |
| Materials brand | Gr4 |
| Materials type | Industrial pure titanium (α-type) |
| Ti purity | ≥99.0% |
| Product modality | Titanium foil/titanium trip/titanium coil |
Specifications
| Items | Parameter scopes |
| Thickness | 0.02-1.0 mm (0.005 mm customization available) |
| Width | 15-680 mm (slitting available) |
| Length | Customization on demand |
| Surface | Bright/matte |
| Delivery status | Annealed condition (M)/cold-worked condition (Y) |
Chemical composition
| Elements | Ti | O | Fe | C | N | H |
| Percetage | ≥99.0% | ≤0.40% | ≤0.50% | ≤0.08% | ≤0.05% | ≤0.015% |
Physical Properties
| Density | 4.51 g/cm³ (approximately 60% the density of steel) |
| Melting point | 1668 °C |
| Opertaing temperature | ≤350 °C (long-term) |
| Resistance | 0.50 μΩ·cm |
| Magnetism | Non-magnetic |
Machanical Properties
| Performance indicators | Gr1 | Gr2 | Gr4 |
| Tensile strength | ≥240 MPa | ≥345 MPa | ≧550 MPa |
| Yield strength | 140-310MPa | 275–450 MPa | 480–665 MPa |
| Elongation | ≥24% | ≥20% | ≥15% |
Standards
| Country | Brand | Standard |
| USA | Gr4/R50700 | ASTM B265 |
| Japanse | Class 4 | JIS H4600 |
| Europe | Ti4 | EN 10263-4 |
| Russia | BT1-00 | GOST 19807 |
Compared with Gr1,Gr2 Foil
| Items | Gr1 | Gr2 | Gr4 |
| Materials | Industrial pure titanium | Industrial pure titanium | Industrial pure titanium |
| Strength grade | Low | Medium | High |
| Ductility | Extremely high | Good | Medium |
| Processing difficulty | Easy to form excellent formability | Relatively easy | Medium |
| Deformation resistance | Relatively weak | Medium | High/strong |
| Application | Ultimate forming | General | Structural load-bearing type |
0.02–1.0 mm×15–680 mm Gr4 Titanium Foil Features
- Highest strength pure titanium foil: Highest grade of commercially pure titanium, tensile strength ≥ 550 MPa, with excellent load-bearing capacity.
- Excellent corrosion resistance: Keep the stable chemical properties of pure titanium, resisting seawater and various acidic & alkaline media. Highly corrosion-resistant in long-term service.
- Excellent lightweight performance: With a density of approximately 4.51, it offers over 40% weight reduction compared to steel, it features high strength and low weight.
- Excellent processing adaptablility: With suitable ductility, it can be stamped, bent and welded, it features stable and well-processing performance.
- Excellent non-magnetic properties and stability: Non-magnetic, stable at low temperatures and reliable at high temperatures, making it suitable for precision and demanding applications.
- Excellent overall cost advantage: Its strength is close to some titanium alloys, but its cost is significantly lower, with superior cost-effectiveness.
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 & Solutions
- Chemical industry: Suitable for large-size electrolytic cell anode foils, corrosion‑resistant structural linings and membrane components. It can be in stable operation under highly corrosive conditions.
- Electronics and New Energy: Used in wide-width flexible shielding materials, battery current collectors and tab systems, ultra-thin heat dissipation structures, and sensor packaging to improve conductive consistency.
- Aerospace: Used for large-area honeycomb core materials, thin-wall sealing gaskets and lightweight structural components, with excellent strength and stability.
- Ocean Engineering: Suitable for wide-width seawater desalination module and marine sensing electrodes, with stable operation in high-salt spray and seawater environments.
- Precision Manufacturing & Welding Applications: Used as matching welding strips and connecting materials for large-size Grade 4 structural parts, improving welding consistency and reliability.
Custom Processing Capabilities
1. Production Line Strength
Baoji Titanium Valley Ti-Ni-Zr Material Processing Co., Ltd. has invested a total of $36.2 million in high-end strip and foil production, establishing an advanced production line for titanium, nickel, zirconium and their alloy strips and foils in the world.
The production line specializes in the stable rolling of ultra-thin, wide-width strips, overcoming critical industry challenges such as springback, difficult shape control and inconsistent material properties. We achieved stable mass production of high-end titanium foil.
With an annual capacity of 3,000 tons, the production line is expected to realize an annual output value of $116 million, supporting large-volume supply demands from high-end customers in aerospace, electronics, new energy, chemical engineering and other industries.
2. Advanced Equipment Capabilities
The production line is equipped with advanced equipment in the world which can ensure high precision and stability for every coil of strip and foil:
A. 750 mm 20‑High Precision Rolling Mill: Enables precision rolling of ultra‑thin wide‑width strips.
B. Ultrasonic Cleaning Line: Ensures surface cleanliness and uniform microstructure.
C. Continuous Annealing Line: Improves stability of material properties.
D. High-Precision Leveling Line: Optimizes strip shape and flatness.
E. Slitting Line: High‑precision slitting suitable for ultra‑thin materials.
F. Grinding Line: Enhances surface consistency and finish.
Through precision equipment and optimized processes, the production line has successfully broken through seven core technical barriers for strip and Gr4 Titanium Foil, including surface color difference control, thickness tolerance control, uniform annealing structure, high-precision slitting, and high-performance cleaning processes.
3. Comprehensive Processing Service
We provide one-stop custom processing from raw materials to finished products, ensuring stable supply of high-precision, high performance products to our customers.
A. Materials: titanium, nickel, zirconium and their alloys
Specifications: thickness 0.02–1.0 mm, width 15–680 mm, customize according to requirement
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