Nickel 201 should not be used in highly oxidising media because the material's superior corrosion resistance is dependent on its performance in neutral to moderately reducing environments. It should also not be used with other anodic metals.
ASTM B161 Nickel 201 Seamless Pipe Manufacturer
We at XTD (Zhejiang Xintongda Special) manufacture high-purity nickel 201 seamless pipe. As a multiple international certified manufacturer in China, we offer these pipes with complete structural integrity. Nickel 201 is a low-carbon variant of Nickel 200 made from a 99.6% nickel wrought alloy with 0.02% carbon. To meet strict ASTM B161 standards and maintain accurate dimensional tolerances, we use a precision hot-extrusion and cold-working technique for the manufacturing of our seamless pipes. Due to its low carbon content, the alloy reduces graphitisation at high temperatures while possessing ferromagnetic properties at room temperature and strong resistance to acids, alkalis, and gases. Its stable ferromagnetic behaviour and high purity make it suitable for selected electrical and sensor-related applications. Nickel 201 offers outstanding performance in high-temperature and hot caustic service at temperatures higher than 600°F (315°C). We offer extensive inspection reports to ensure complete compliance and traceability in industries such as chemical processing, power generation, aerospace, and medical technology.
Product specifications:
Standard ASTM B161
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OD Range 6–457 mm -
Thickness 1-65 mm -
Length ≤ 18 m
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Technical Data
Technical Data
Alloy 201 Seamless Pipe Manufacturing Process
Our nickel 201 seamless pipes are manufactured through a hot extrusion process, followed by precise piercing to form a hollow shell. The shell is then cold-worked, heat-treated, shaped and tested to comply with the specified mechanical and dimensional specifications. You can learn the whole manufacturing process by visiting this page.
Key Features of Nickel 201 Pipe
The outstanding performance of our seamless nickel pipe derives from its unique metal properties, which provide a strong combination of chemical resistance, strength, and thermal stability. The following are the 5 features that make this pipe suitable for challenging industrial environments.
- Low Carbon Content: Nickel 201 has a maximum carbon content of 0.02%, which prevents carbon from precipitating within the alloy's grain boundaries and reduces the risk of graphitisation at elevated temperatures. This diminished carbon content also decreases hardness, making the alloy suitable for cold forming and shaping.
- Corrosion Resistance: Nickel 201 (UNS N02201 / 2.4068) contains 99.6% pure nickel, providing it with excellent corrosion resistance. It functions efficiently under neutral and reductive environmental conditions and operates safely in high-temperature, concentrated corrosive alkalis. It also endures gases such as chlorine and hydrogen chloride at high temperatures.
- High Temperature Performance: The low-carbon design ensures its stability and inhibits graphitisation at temperatures over 600°F (315°C). Nickel 201 performs better than Nickel 200 in high-temperature applications, preserving strength and corrosion resistance.
- Good magnetostrictive properties: Nickel 201 is a ferromagnetic alloy that exhibits minor dimensional changes when subjected to a magnetic field. This property makes it suitable for electrical, and electronic devices such as transducers, which convert electrical signals into precise dimensional changes.
- Outstanding Alkali Resistance: Nickel 201 provides outstanding resistance to neutral salt solutions and sodium hydroxide, even in high concentrations and elevated temperatures. This is essential for the production and management of caustic alkali in the chemical industry.
ASTM B161 Ni 201 SMLS Pipe Equivalent Material
The primary designation for this material is Nickel 201, which is internationally classified under the Unified Numbering System as UNS N02201 and in the European Standard as 2.4068. This globally recognised high-purity alloy has several equivalent designations in international trade and engineering standards.
| GRADE | UNS | GB | JIS | ISO | BS | GOST | |
| WERKSTOFF NR. | EN | ||||||
| Nickel 201 | N02201 | 2.4068 | LC-Ni 99 | NW 2201 | – | NA 12 | НП-2 |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
Nickel Alloy 201 Seamless Pipe Applications
Nickel 201 seamless pipes are used in 10 rigorous industrial and electrical applications. The material provides excellent corrosion resistance and maintains stability at elevated temperatures.
Lead Wire
The pipe’s magnetostrictive features make it appropriate for electrical leads that require reliable conductivity. It is also used in heating elements and sensors.
Battery Components
The high purity of nickel 201 makes it suitable for long-lasting cells, rechargeable, and implantable battery systems. It supports consistent charging and discharging cycles.
Transducers
Nickel 201 is used in the manufacturing of precise transducer components primarily due to its magnetic properties.
Sparking Electrodes
Its corrosion stability and magnetic response allow it to be used safely in ignition electrodes, as it resists chemical wear during repeated spark cycles.
Heat Exchangers
Strong alkali resistance supports process heat transfer units containing caustic liquors. Nickel 201 prevents material breakdown in high-temperature and corrosive environments.
Implantable battery anode/connector tabs for CRM, and neurostimulation devices
Its purity and ductility enable its application in the power connections of implantable medical devices. It is also used in current collector tabs, wiring and composite anodes. The metal performs reliably within the structure and allows the electrical system to work for a long time.
Stamped, or etched fabrications
The cold-forming performance helps to manufacture battery parts, electrical connectors, heat exchanger fins, or custom fittings. It bends cleanly without cracking, making it ideal for tight-tolerance parts.
Chemical Processing
Nickel 201 resists strong alkalis used in production towers, evaporators, and storage systems. It provides long equipment life in aggressive chemical media.
Power Generation
The thermal stability supports high temperature processing equipment in caustic units and high-temperature power generation systems. Nickel 201 maintains its strength and conductivity under extreme operational pressure.
Aerospace and Electronics
Reliable magnetic expansion and purity support sensors, controls, hydraulic systems, missile & rocket components, and aerospace electrical components. It provides consistent performance in systems where accuracy is essential.
Frequently asked Questions
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Where should Nickel 201 not be used?
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What are the key mechanical properties of nickel 201 seamless pipes?The key mechanical properties of nickel 201 pipe include strong ductility, moderate tensile strength and steady hardness in the annealed condition (approximately 62 HRB max), with higher values achievable through cold working.
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Is Nickel 201 Pipe suitable for extremely high temperatures?Yes. Due to its low carbon content, nickel 201 pipe performs well in extremely high-temperatures (above 315°C). It avoids graphitisation.
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What is the delivery lead time for bulk orders of Nickel 201 Pipes?The usual lead time for bulk orders of nickel 201 pipes generally ranges from 15 to 60 days. We deliver in-stock products within a week.