NICKEL 200/Alloy 200, NICKEL 201/Alloy 201

Commercially pure or low-alloy nickel has characteristics that are useful in several fields, notably chemical processing and electronics. Nickel is highly resistant to various reducing chemicals and is unexcelled in resistance to caustic alkalies. Compared with nickel alloys, commercially pure nickel has high electrical and thermal conductivity.

It also has a high Curie temperature and good magnetostrictive properties. Annealed nickel has a low hardness and good ductility and malleability. Those attributes, combined with good weldability, make the metal highly fabricable. Nickel has a relatively low work-hardening rate, but it can be cold worked to moderately high strength levels while maintaining ductility. Nickel 200 and Nickel 201.

Nickel 200 (UNS N02200/W.Nr. 2.4060 & 2.4066) is commercially pure (99.6%) wrought nickel. It has good mechanical properties and excellent resistance to many corrosive environments. Other useful features of the alloy are its magnetic and magnetostrictive properties, high thermal and electrical conductivities, low gas content and low vapor pressure. The chemical composition is shown in the Table below. The corrosion resistance of Nickel 200 makes it particularly useful for maintaining product purity in the handling of foods, synthetic fibers, and caustic alkalis; and also in structural applications where resistance to corrosion is a prime consideration. Other applications include chemical shipping drums, electrical and electronic parts, aerospace and missile components

Available Forms And Specifications

Standard product forms are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon, and wire. The products are available in a wide variety of sizes. Full information can be obtained from any Special Metals office. Nickel 201 is designated as UNS N02201 and Werkstoff Numbers 2.4061 and 2.4068. Specifications for Nickel 200 include the following:
Rod and bar: ASTM B 160/ ASME SB 160, DIN 17752, ISO 9723, VdTÜV 345.
Pipe and Tube: ASTM B 161/ ASME SB161, B 163/ SB 163, B 725/ SB 725, B730/ SB 730, B 751/ SB 751, B775/ SB 775, B 829/ SB 829, DIN 17751, ISO 6207, BS 3074 (NA12), VdTÜV 345.
Plate, Sheet & Strip: ASTM B 162/ ASME SB 162, DIN 17750, ISO 6208, BS 3072-3073 (NA12), SAE AMS 5553, VdTÜV 345.
Fittings: ASTM B 366/ ASME SB 366
Forgings: ISO 9725, DIN 17754
Chemical Composition: DIN 17740
Wire: DIN 17753, ISO 9724

Chemical Composition

Ni Cu Fe Mn Si Co S C
63min 28.0-34.0 2.5 2.0 max 0.50 max 2.0 max 0.024max 0.30max

Mechanical Properties

Density, g/cm³ 8.89
Melting range, °C 1300 – 1350
Tensile strength, min, Mpa 550
Yield strength, 0.2% offset, min, Mpa 240
Elongation, %, min 40
Hardness, Rockwell 60-80


Alloy 200 is used for the manufacture of processing equipment. It is particularly suitable to maintain product purity in handling foods, synthetic fibers, and alkalis, manufacturing, and handling sodium hydroxide, particularly at temperatures above 300°C.

  • Production of viscose rayon.
  • Aniline hydrochloride production and in the chlorination of aliphatic hydrocarbons such as benzene, methane, and ethane.
  • Reactors and vessels in which fluorine is generated and reacted with hydrocarbons.
  • Food Processing, Salt refining equipment.

LKALLOY is a leading supplier of Nickel 200 and other high-quality special metal alloys with decades of experience and extensive specifications. To buy or learn more about Alloy 200, contact us now.

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