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Nickel 200 Alloy: Properties and Applications
Nickel 200 alloy, also known as UNS N02200, is a commercially pure wrought nickel with excellent mechanical properties and corrosion resistance. It is widely used in various industries due to its versatility and reliability.
Properties of Nickel 200 Alloy
Nickel 200 alloy exhibits several key properties that make it suitable for demanding applications:
- High Corrosion Resistance: Excellent resistance to reducing chemicals and caustic alkalis
- Good Thermal Conductivity: Approximately 70 W/m·K at room temperature
- Magnetic Permeability: Low magnetic permeability, especially in annealed condition
- Mechanical Properties: Tensile strength of 55 ksi (380 MPa) minimum in annealed condition
- Temperature Range: Can be used from cryogenic temperatures up to 600°F (315°C)
Chemical Composition
The typical chemical composition of Nickel 200 alloy includes:
| Element | Percentage |
|---|---|
| Nickel (Ni) | ≥ 99.0% |
| Carbon (C) | ≤ 0.15% |
| Iron (Fe) | ≤ 0.40% |
| Manganese (Mn) | ≤ 0.35% |
| Sulfur (S) | ≤ 0.01% |
Applications of Nickel 200 Alloy
Due to its unique combination of properties, Nickel 200 finds applications in various industries:
Chemical Processing
Used in equipment handling caustic alkalis, fluorine, and hydrogen fluoride at high temperatures.
Food Processing
Ideal for food handling equipment due to its corrosion resistance and non-contaminating properties.
Electronics
Used in electronic components requiring high purity and consistent electrical characteristics.
Aerospace
Components exposed to extreme environments benefit from Nickel 200’s reliability.
Marine Applications
Resistant to saltwater corrosion, making it suitable for marine hardware and components.
Advantages Over Other Materials
Nickel 200 offers several advantages compared to other materials:
- Superior corrosion resistance compared to stainless steels in many environments
- Better thermal conductivity than most corrosion-resistant alloys
- Maintains strength at both high and low temperatures
- Excellent fabrication characteristics including weldability and formability
When selecting materials for corrosive environments or applications requiring high purity, Nickel 200 alloy (UNS N02200) often proves to be an excellent choice due to its combination of properties and performance characteristics.