Nickel 200 / 201

Nickel 200 / 201 / UNS N / W.Nr. 2./2. & 2./2.

Description

Nickel 200 and Nickel 201 are solid solution strengthened, commercially pure wrought alloys. The elemental restrictions of both alloys are combined into one, dual-certified chemistry, resulting in a single alloy with the desired characteristics of both alloys. When operating temperatures are expected to exceed 600°F, carbon content becomes critical. The lower carbon content of Nickel 201 makes the material resistant to graphitization and therefore less subject to embrittlement. Pressure vessels and components can be constructed from Nickel 201 according to the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 for use up to °F.

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Industries and Applications

Nickel 200 / 201 is used heavily in the chemical and electronics industries. It is also used in the aerospace, petrochemical, power generation and marine/offshore engineering industries. Typical applications where Nickel 200/201 is used include electronic and electroplating components, caustic evaporators, food processing equipment, caustic handling and storage equipment, synthetic fiber production, salt production and other processes where sodium hydroxide and fluorine are used.

Resistance to Corrosion

Nickel 200/201 offers excellent corrosion resistance in reducing and neutral media as well as in oxidizing atmospheres, provided the oxidizing media allows the formation of a passive oxide film. This oxide film accounts for the alloy&#;s excellent resistance to corrosion in caustic environments. Nickel 200/201 is often used in environments containing alkalies, and it has varying use in sulfuric, hydrochloric, anhydrous hydrofluoric and non-aerated organic acids. Nickel 200/201 is resistant to stress corrosion cracking in chloride salts and to attack from non-oxidizing halides. Concentration and temperature can affect this alloys resistance in certain environments.

Fabrication and Heat Treatment

All hot working and cold working practices can be utilized when shaping Nickel 200/201. Hot working temperatures should be between °F and °F with heavy forming to be performed at temperatures above °F. Annealing should be performed at a temperature between °F and °F. Care should be taken when choosing the anneal temperature as time-at-temperature for this can greatly influence the mechanical properties and structure of the material.

Common Trade Names

Nickel 200, Nickel 201

Nickel is a versatile metal that finds application in various industries. Its unique properties such as high resistance to corrosion and oxidation, good ductility, and excellent electrical conductivity make it a preferred choice for manufacturing several products. In this article, we will take an in-depth look at two important grades of pure nickel - Ni201 and Ni200 - and their characteristics, applications, and equivalents.

Anton Metal - a leading supplier of nickel alloys - provides high-quality Ni201 and Ni200 plates, round bars, pipes, strips, and wire rods with a focus on meeting customer requirements for chemical composition, mechanical properties, and process standards. Let's explore these materials further.

Chemical Composition

Both Ni201 and Ni200 are commercially pure nickel alloys, meaning they contain over 99% nickel with minimal amounts of other elements. However, there are slight differences in their composition. Ni201 has lower carbon content (0.02% max) than Ni200 (0.15% max), which makes it less susceptible to embrittlement by intergranular precipitates at elevated temperatures. Additionally, Ni201 has a lower iron content, which imparts improved resistance to corrosion in reducing environments.

Mechanical Properties

The mechanical properties of Ni201 and Ni200 are similar due to their near-identical chemical compositions. Both exhibit excellent thermal and electrical conductivity and low coefficient of expansion, making them ideal for electrical and electronic applications. They also display good ductility and toughness, enabling them to be formed and fabricated easily.

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Application

Due to their superior corrosion resistance, Ni201 and Ni200 are widely used in the chemical processing industry for manufacturing equipment, such as heat exchangers, pressure vessels, and piping systems. They are also used in the oil and gas industry for downhole tubing, pump shafts, and valves, where their resistance to sulfide stress cracking is critical. Ni201 and Ni200 are also used in the aerospace industry for manufacturing jet engine components that require high temperature and corrosion-resistant materials.

Equivalent Material

Ni201 and Ni200 are equivalent to ASTM B162 and UNS N/N, respectively. They are also equivalent to DIN and EN -1 2./2. material standards.

Process Standard

At Anton Metal, we manufacture our Ni201 and Ni200 products as per international standards such as ASTM, DIN, and EN. We also offer custom sizes and specifications based on customer requirements. Our focus is on delivering high-quality products that meet or exceed customer expectations.

Heat Treatment

Both Ni201 and Ni200 can be annealed at temperatures ranging from °C to °C for several hours. Annealing improves the alloys' ductility and workability, making them easier to form and machine. However, they should not be exposed to temperatures above 600°C for prolonged periods as it can cause embrittlement due to intergranular precipitation.

Conclusion

In conclusion, Ni201 and Ni200 are two important grades of pure nickel with excellent properties that make them ideal for various applications. Anton Metal provides high-quality Ni201 and Ni200 plates, round bars, pipes, strips, and wire rods that meet international standards and customer requirements. For more information on our products and services, visit our website or contact us today.

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