Nickel 200 / 201

UNS N02200 / N02201

Supplier of Nickel Alloys and Specialist METALS

Nickel 200 / 201

Trade Names

Nickel 200 / 201

UNS Ref:

N02200 N02201

Applications

Chemical processing and electronics, containers and piping, processing equipment, particularly to maintain product purity in handling foods, synthetic fibers and alkalies

Standards

ASTM B-162 ASME SB-162

Available Forms & Sizes

Range From

Range To

bar

Round Bar

9.53mm

267mm

sheet

Sheet & Coil

0.25mm

101.6mm

sheet

Pipe

0.5 in

6 in

sheet

Welding Wire

1.6 mm

3.25 mm

sheet

Pipe Fittings

0.5 in

6 in

Nickel 200 and Nickel 201 are both commercially pure wrought nickel grades, and they share many similarities in terms of their chemical composition and properties. However, there is a slight difference between the two in terms of carbon content, which has an impact on their performance in certain environments. Here are the characteristics of Nickel 200 and 201:
Characteristics
Key characteristics of Nickel 200/201 include:
  1. Chemical Composition:
    • Nickel 200: It has a minimum nickel content of 99.0% and can contain small amounts of other elements, such as iron, manganese, copper, silicon, and carbon.
    • Nickel 201: It is very similar to Nickel 200 but has a lower carbon content (maximum 0.02%). The reduced carbon content makes Nickel 201 more resistant to graphitization and therefore more suitable for applications where carbon pickup could be detrimental.
  2. Carbon Content:
    • Nickel 200: Has a higher carbon content compared to Nickel 201.
    • Nickel 201: Has a lower carbon content, which makes it more suitable for service in elevated temperature applications.
  3. Magnetic Properties:
    • Both Nickel 200 and Nickel 201 are ferromagnetic at room temperature.
  4. Thermal Conductivity:
    • Both grades have good thermal conductivity.
  5. Mechanical Properties:
    • Both grades exhibit excellent mechanical properties, including high tensile strength and good ductility.
  6. Corrosion Resistance:
    • Nickel 200 and Nickel 201 have exceptional corrosion resistance in various environments, including acids and alkalis. They are particularly resistant to corrosion by caustic alkalis.
  7. Application Areas:
    • Both grades are commonly used in chemical processing, electronics, aerospace, and marine engineering.
    • Nickel 201 is often preferred in high-temperature applications where the lower carbon content is advantageous.
  8. Weldability:
    • Both grades have good weldability and can be welded using various techniques.
Applications

In summary, while Nickel 200 and Nickel 201 share many similarities, the main distinction lies in the carbon content, with Nickel 201 having a lower carbon content. This difference makes Nickel 201 more suitable for certain high-temperature applications where resistance to graphitization is critical. Users should carefully select the grade based on the specific requirements of their application.

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