Nickel 201 Foil Description
1) Introduction
Nickel 201 Foil (Ni201 / UNS N02201) is a low-carbon, high-purity nickel ultra-thin strip material designed for high-end electronic and chemical applications. It is produced through vacuum-melted high-purity nickel ingots, multi-pass precision cold rolling, and strict annealing processes.
Compared with Nickel 200, Nickel 201 significantly reduces carbon content (C ≤ 0.02%), which greatly improves its structural stability and resistance to graphitization at elevated temperatures. This makes Ni201 more reliable in long-term high-temperature service environments.
The core value of this material lies in maintaining excellent conductivity and corrosion resistance of pure nickel while delivering enhanced thermal stability and improved operational safety in demanding conditions.
2) In engineering applications, different materials are positioned as follows:
- Nickel 200 Foil (Ni200): High-purity nickel with excellent conductivity, suitable for room-temperature electronics and battery applications
- Nickel 201 Foil (Ni201): Improved high-temperature stability while maintaining conductivity, suitable for long-term and elevated temperature environments
- Gr1 / Gr2 Titanium Foil: Excellent corrosion resistance but low conductivity, suitable for structural anti-corrosion applications
- Gr5 Titanium Foil: High-strength structural material without conductivity advantages
The positioning of Ni201: Based on conductivity and corrosion resistance, it further solves the high-temperature stability limitations of pure nickel.
3) Standard specification
- Thickness 0.03–0.8 mm, width 350–670 mm, suitable for industrial applications requiring conductivity, mechanical strength, and long-term stability
- Custom thickness: 0.005–0.01 mm, suitable for high-end precision and miniaturized applications
- Custom thickness: 0.01–0.03 mm, suitable for industrial conductive structural applications
4) Production Process & Equipment
- Our company focuses on making high-end titanium, nickel, zirconium and alloy With advanced 20-high precision rolling mills, we can roll ultra-thin, wide strips with very high precision.
- Major equipment: 750 mm 20 high precision rolling mill
- Thickness tolerance: ±0.001 mm
- Multi-pass rolling delivers consistent, uniform strip shape.
- We have achieved mass production of ultra-thin wide-width foil and can provide stable bulk supply.
5) Surface Treatment & Quality Control
- l Cleaned via ultrasonic and alkaline solution, with a stable surface dyne level of 44 for excellent formability.
- l Continuous argon annealing with a temperature tolerance of ±2℃. Solution heat treatment improves plasticity and strength, resulting in uniform surface color.
- l Production line automation rate reaches 90%. Full-process inspection ensures superior dimension, perfect surface quality and mechanical properties.
Technical Specifications
Product Basic Information
| Item | Description |
| Material Grade | Nickel 201 / Ni201 |
| UNS Number | N02201 |
| Material Type | Low-carbon industrial pure nickel |
| Product Form | Nickel foil / nickel strip / coil |
Size Specification
| Item | Range |
| Thickness | 0.03–0.8 mm |
| Width | 350–670 mm |
| Length | Coil (customized) |
| Surface Finish | Bright / Matte / Cleaned surface |
| Supply Condition | Annealed (M) / Cold worked (Y) |
Chemical Composition (Typical)
| Element | Ni | C | Fe | Mn | Si | S |
| Content | ≥99.6% | ≤0.02% | ≤0.40% | ≤0.35% | ≤0.35% | ≤0.01% |
Physical Properties
| Property | Value |
| Density | 8.9 g/cm³ |
| Melting Point | 1455°C |
| Service Temperature | ≤600°C |
| Conductivity | Excellent |
| Magnetism | Weak magnetic |
Mechanical Properties
| Condition | Tensile Strength | Elongation |
| Annealed (M) | 350–420 MPa | ≥25% |
| Cold Worked (Y) | 500–600 MPa | ≥8% |
Standards
| Region | Standard |
| USA | ASTM B162 |
| International | UNS N02201 |
Comparison with Ni200 / Titanium Foil
| Item | Ni200 | Ni201 | Titanium Foil (Gr2) |
| Material Type | Pure nickel | Low-carbon pure nickel | Industrial pure titanium |
| Conductivity | Excellent | Excellent | Poor |
| High-temperature Stability | Medium | Excellent (more stable) | Medium |
| Graphitization Resistance | Weak | Strong | Not applicable |
| Cold Workability | Good | Good | Excellent |
| Application Focus | Standard conductivity | High-temperature conductivity | Corrosion-resistant structure |
Nickel 201 Foil Features
- Improved high-temperature stability: The low-carbon design prevents embrittlement and microstructural degradation at elevated temperatures and ensures long-term service reliability.
- Excellent electrical conductivity: The material provides strong electrical conductivity and suits batteries, electrodes, and various conductive connection structures.
- Strong corrosion resistance: The material resists alkaline environments, seawater, and a wide range of industrial media and extends service life.
- Good formability and workability: The material supports stamping, bending, and welding and adapts to various manufacturing and processing methods.
- High purity and consistent quality: The material maintains high purity and stable batch-to-batch consistency and supports large-scale industrial production.
- Compatible with automated production: The material maintains high dimensional accuracy and stability and suits high-speed stamping and automated welding lines.
Technological Advantages
During the mass production of ultra-thin Ni201 nickel foil, the industry commonly faces several challenges:
- Low-carbon materials make microstructure control difficult during high-temperature annealing
- Ultra-thin specifications cause thickness fluctuations and poor flatness stability
- Surface cleanliness often fails to meet electronic-grade requirements
- Slitting processes easily create burrs and deformation
To address these issues, we optimize the process to achieve stable mass production:
- We use multi-pass cold rolling and precise tension control to achieve stable ultra-thin thickness control
- We optimize protective atmosphere annealing to prevent carbon migration and microstructural abnormalities
- We build a high-precision thickness control system to ensure batch consistency
- We apply full-process cleaning and strict cleanliness control to improve surface quality
- We optimize the slitting process to reduce burrs and edge defects
Applications & Solutions
- New Energy Battery Industry: Used for battery tabs, connector strips, and conductive structures to improve current stability and reduce resistance
- Electronics & Communication Industry: Used for EMI shielding, precision electrodes, and connectors to ensure stable signal transmission
- Chemical & Electrolysis Industry: Used for electrolysis electrodes and corrosion-resistant components for alkaline and harsh chemical environments
- Heating & High-Temperature Equipment: Used in heating elements and vacuum systems requiring stable high-temperature performance
- Precision Manufacturing Industry: Used for ultra-thin stamping parts and functional precision components requiring high dimensional accuracy
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) 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) 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: Pure titanium, titanium alloys, zirconium, nickel
Specifications: Thickness 0.02–1.0mm, width 350–670mm, customize according to requirement.
B.Surface treatment: Cleaning, sanding, degreasing, 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
Contact Us
Telephone: +86-13530170059
Email: sales@titaniumvalleys.com
Address: Technology Innovation Industrial Park, Titanium Valley Building, High tech Development Zone, Baoji, Shaanxi, China