How to choose between Nickel 200 and Nickel 201?

Nickel 200/201 chemical composition

Detailed Analysis for Optimal Material Selection

Nickel 200 and Nickel 201 are used in a wide range of applications in the chemical industry, food processing, electroplating, aerospace, etc. Understanding the chemical composition of these two nickel alloys is particularly important to make the right choice when selecting materials.

Chemical Composition of Nickel 200

Nickel 200 is a commercially pure form of nickel, typically containing at least 99.6% nickel. Its chemical composition also includes small amounts of other elements, the exact chemical composition is usually as follows:

- Nickel (Ni): ≥ 99.6 per cent

- Nickel (Ni): ≥ 99.6% Iron (Fe): ≤ 0.4% Manganese (Mn): ≤ 0.4

- Manganese (Mn): ≤ 0.35%.

- Silicon (Si): ≤ 0.35

- Copper (Cu): ≤ 0.25

- Carbon (C): ≤ 0.15

- Sulphur (S): ≤ 0.01

The chemical composition shows that Nickel 200 has excellent corrosion resistance, especially in reducing environments. At the same time, its high electrical and thermal conductivity makes it ideal for electrical and electronic applications.

Chemical Composition of Nickel 201：

Nickel 201 is similar to Nickel 200, but the main difference is the carbon content, which is typically not more than 0.02% in Nickel 201. For this reason, Nickel 201 is more stable at high temperatures, has better ductility and corrosion resistance, and avoids the risk of carbide precipitation.

- Nickel (Ni): ≥ 99.6

- Nickel (Ni): ≥ 99.6% Iron (Fe): ≤ 0.4% Manganese (Mn): ≤ 0.4

- Manganese (Mn): ≤ 0.35

- Silicon (Si): ≤ 0.35

- Copper (Cu): ≤ 0.25

- Carbon (C): ≤ 0.02

- Sulphur (S): ≤ 0.01

How to choose between Nickel 200 and Nickel 201

When choosing between Nickel 200 and Nickel 201, the best material is determined by the specific requirements of the application. Below are some of the main applications and their corresponding properties:

1. Chemical Industry

- Nickel 200: Excellent corrosion resistance, high purity, and stability ensure long equipment life and reliability. It is particularly suitable for handling and transporting alkaline chemicals such as sodium hydroxide and potassium hydroxide. Used, for example, in the manufacture of tanks and pipes.

- Nickel 201: Maintains good ductility and corrosion resistance at elevated temperatures above 600°C. Suitable for equipment requiring chemical treatment at high temperatures. For example, high-temperature reactors and heat exchangers.

2. Electroplating Industry

- Nickel 200: High purity contributes to high-quality plating in plating scenes such as plating baths and electrodes. High electrical conductivity is also an important property that makes the plating process more efficient and stable, so Nickel 200 is widely used in the plating industry.

- Nickel 201: High-temperature stability is an advantage for some special plating processes that require high-temperature treatment. For example, high-temperature plating equipment.

3. Food processing industry

- Nickel 200: Nickel 200 has good mechanical properties, high purity, and corrosion resistance, which can prevent food contamination and ensure food safety. Therefore, it has become the first choice for various food processing equipment. For example, it is used in food processing pipes and tanks.

- Nickel 201: Similarly, the high-temperature stability and low carbon content of Nickel 201 are also advantageous in certain high-temperature food processing equipment, such as high-temperature cookers and baking equipment.

4. Aerospace

- Nickel 200: High strength and corrosion resistance make it suitable for certain non-high temperature applications such as structural and airframe components.

- Nickel 201: Suitable for components that need to withstand high temperatures, such as jet engines and high-temperature alloy components. Its stability and ductility at elevated temperatures ensure aircraft safety and performance.

5. Nuclear industry

- Nickel 200: Used in some low and medium-temperature applications and not commonly used in high-temperature conditions due to its relatively high carbon content.

- Nickel 201: With a very low carbon content and excellent corrosion resistance at high temperatures, Nickel 201 is widely used in nuclear reactors and other high-temperature nuclear equipment to ensure long life and safety.

Summary and Recommendations

The temperature of the application environment and corrosion resistance are two important factors to consider when choosing between Nickel 200 and Nickel 201. MTSCO has extensive experience in the field of Nickel alloys. Please contact us for further advice on this subject.

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