Gr5 Titanium Foil Description
1) Introduction
Gr5 titanium foil is a high-performance ultra-thin titanium strip/foil based on Ti‑6Al‑4V (an α+β two-phase titanium alloy), manufactured through multi-pass precision cold rolling and vacuum annealing.Compared with commercially pure titanium (Gr1/Gr2/Gr4), Gr5 not only has significant higher strength, but also maintains excellent stability under moderate to high temperatures, making it a typical representative of lightweight high-strength structural materials.
Gr5 titanium foil overcomes the application bottleneck of “limited strength” associated with pure titanium.
While retaining excellent corrosion resistance and non-magnetic properties, it significantly enhances load-bearing capacity and structural reliability.
It is particularly suitable for high-demand applications in aerospace, electronics, new energy, and high-end equipment manufacturing, where stringent requirements are placed on strength, weight, and stability.
2) The properties and application of titanium foil material are as follows:
- Gr1 Titanium Foil: Due to its extremlyhigh ductility, it is suitable for highly complex formed parts and deep drawing applications.
- Gr2 Titanium Foil: Balanced strength and ductility, ideal for general industrial applications
- Gr4 Titanium Foil: Highest strength among commercially pure titanium grades, used for structural components with certain load-bearing requirements
- Gr5 Titanium Foil: A certain of titanium alloy with strength exceeding pure titanium, combining lightweight design and high reliability, dedicated to high-end load-bearing structures and extreme working environments
3) Standard Specification
- Thickness Range ：03– 0.8mm
- Width Range: 350– 670 mm
- Supply form: coil, sheet, strip, fixed-length sheet (Support customization)
- Surface status: Pickled surface / Bright surface / Matte surface
- Customizable thickness: 0.001–0.008 mm, suitable for general industrial applications as well as high-end precision use such as microelectronics and optics.
4) Production Line Process & Equipment Capabilities
Titanium ingot → Hot rolling breakdown → Multi-pass 20-high precision cold rolling → Ultrasonic cleaning → Continuous vacuum annealing (stress relief /ductility restoration) → Temper rolling → Slitting → Surface sanding → Inspection & packaging
Key equipment: 750mm 20-high precision rolling mill, ultrasonic cleaning line, continuous vacuum annealing furnace with argon gas, precision temper mill, slitting line, foil cutting machine, and surface sanding line.
5) 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.750mm 20-high precision rolling mill: enable precision rolling of ultra-thin, wide-width strips.
B.Continuous cleaning and annealing line: ensure surface cleanliness and uniform microstructure
C.Vacuum furnace: improve stability of material properties
D.Leveler: enhance strip shape and flatness
E.Slitting line: high-precision slitting suitable for ultra-thin materials
F.Sanding line: optimize surface consistency and texture.
Technical Specifications
Basic Data
| Item | Details |
| Materails Brand | Gr5 / TC4 |
| Materials type | α+βtitanium alloy |
| Standard name | Ti-6Al-4V |
| Product Shape | Titanium foil / titanium strip / coil |
| Foil size | ≤0.3 mm |
Specification
| Item | Specification Range |
| Thickness | 0.03 – 0.8mm |
| Width | 350 – 670 mm |
| Length | Coil（Customize according to the custom requirements） |
| Surface | Pickled surface / Bright surface / Matte surface |
| Deliery Status | Annealed state(M)/Cold rolled state(Y) |
Chemical Compostion
| Element | Al | V | Fe | O | C | N | H | Ti |
| Percentage | 5.50–6.75% | 3.50–4.50% | ≤0.30% | ≤0.20% | ≤0.08% | ≤0.05% | ≤0.015% | balance |
Physical Properties
| Properties | Value |
| Density | 4.43 g/cm³ |
| Melting points | 1668℃ |
| Operating tempreture | ≤300℃（long-term） |
| Electrical resistivity | 165–175 μΩ·cm |
| Magnetism | Non-magnetism |
Machanical Property（Annealing M）
| Performance Indicators | Value |
| Tensile Strength | ≥895 MPa（Common 930–1100 MPa） |
| Yield Strength | ≥825 MPa |
| Elongation | ≥10% |
| Hardness | HB 270–330 |
Standard
| Country | Brand | Stanard |
| China | TC4 | GB/T 3622-2023 |
| USA | Gr5 / R56400 | ASTM B265 |
| Europe | Ti-6Al-4V | EN Standard |
| Japan | Ti-6Al-4V | JIS H4600 |
Compared with Gr2 / Gr4 Titanium Foil
| Item | Gr2 | Gr4 | Gr5 |
| Materials Type | Pure Titanium | Pure Titanium | Titanium Alloy |
| Strength Grade | Midium | High | Super High |
| Plasticity | Good | Midium | Low |
| Processing Difficulty | Easy | Midium | Higher |
| High Temperature Resistance | General | General | Excellent |
| Application | Common | Load-bearing structure | High-end structural parts / Lightweight structural parts |
0.03–0.8mm×350–670mm Gr5 Titanium Foil Features
- Ultra-high Strength Advantage Stronger than pure titanium, providing higher load-bearing capacity at the same weight.
- Excellent Corrosion Resistance Stable performance in seawater and various chemical media.
- Outstanding High Temperature Resistance Suitable for long-term service at 300°C, and short-term use up to 400°C.
- Advantage of Lightweight Design Only 60% the density of steel, significantly reducing structural weight.
- Good Weldability and Processability Compatible with TIG welding, laser welding and other processes.
- Non-magnetic and High Safety Suitable for electronics, vacuum and explosion-proof environments.
Technological Advantages
During mass production of wide-size Grade 5 titanium alloy foil with specifications of 0.03–0.8 mm thick × 350–670 mm wide, exsiting some problems such as poor rolling stability, difficult contral in forming plates, and insufficient batch consistency are common in the industry due to the high strength and low ductility of the material.
Regarding these techincal challenges, we have achieved stable mass productioin through collaborative optimization of the process and equipment.
- Through multi-pass precision cold rolling and tension control, we resolve cracking and strip breakage issues during ultra-thin processing of high-strength materials, achieving stable control of titanium foil thickness.
- Using 20-high rolling mills and precision flattening processes, we effectively control the flatness of wide thin strip, improving surface flatness and process ability.
- Set up a high-precision thickness control system to ensure dimension consistency and stable tolerances for ultra-thin products.
- Adopt vacuum or inert gases annealing to achieve a uniform α + β phase microstructure and ensure stable and reliable mechanical properties.
- Full-process cleanliness control and surface treatment technologies effectively inhibits oxygen pollution and improves surface quality
- Slitting processes and tension matching are optimized to reduce burrs and deformation, improving final product quality.
Applications & Solutions
- Aerospace：For honeycomb core materials, engine thermal insulation foils and lightweight structural components.
- Chemical & Marine Engineering：Used for electrolyzer electrode foils, corrosion-resistant linings and seawater equipment.
- Electronics & New Energy：Applied to electromagnetic shielding foils, battery conductive connection foils and heat dissipation structures.
- Automotive & New Energy：Used in battery pack heat dissipation foils, sensor protection and lightweight components.
- Vacuum & Semiconductor：For vacuum equipment inner lining foils and clean environment protective materials.
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.750mm 20-high precision rolling mill: enable precision rolling of ultra-thin, wide-width strips
B.Continuous cleaning and annealing line: ensure surface cleanliness and uniform microstructure
C.Vacuum furnace: improve stability of material properties
D.Leveler: enhance strip shape and flatness
E.Slitting line: high-precision slitting suitable for ultra-thin materials
F.Sanding line: optimize surface consistency and texture.
Through precision equipment and optimized processes, the production line has successfully broken through seven core technical barriers for strip and foil products, 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,hign performance products to our customers.
A.Materials: Pure titanium, titnaium alloys, zironium,nickel.
Specificatios:Thickness 0.02-1.0mm, width: 350-670mm, customize according to requirements.
B.Surface treatment: Cleaning, sanding,degreaing,annealing,available in bright,matte and other function surface.
C.Dimentional & Flatness control: Precise control of thinckness, tolerances and surface flatness
D.Slitting & Cutting to length: Suitable for ultra-thin wide strips with hign yield and stable quality.
E.Mass Delivery: Annual capacity of 3,000Tons to meet large and high-standard orders.
Contact Us
Telephone: +86-13530170059
Email: sales@titaniumvalleys.com
Address: Technology Innovation Industrial Park, Titanium Valley Building, High tech Development Zone, Baoji, Shaanxi, China