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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. This alloy is widely used in various industries due to its unique characteristics.

Chemical Composition

The chemical composition of Nickel 200 includes:

• Nickel (Ni): 99.0% minimum
• Iron (Fe): 0.40% maximum
• Manganese (Mn): 0.35% maximum
• Copper (Cu): 0.25% maximum
• Carbon (C): 0.15% maximum
• Silicon (Si): 0.35% maximum
• Sulfur (S): 0.01% maximum

Physical Properties

Nickel 200 exhibits the following physical properties:

• Density: 8.89 g/cm³
• Melting Point: 1435-1446°C (2615-2635°F)
• Electrical Resistivity: 0.095 µΩ·m
• Thermal Conductivity: 70 W/m·K

Mechanical Properties

The mechanical properties of Nickel 200 make it suitable for demanding applications:

• Tensile Strength: 462 MPa (67 ksi)
• Yield Strength: 148 MPa (21.5 ksi)
• Elongation: 47%
• Hardness: 80 HRB

Corrosion Resistance

Nickel 200 offers excellent corrosion resistance in various environments:

• Resistant to reducing chemicals
• Excellent performance in caustic environments
• Good resistance to neutral and alkaline salt solutions
• Performs well in food processing applications

Applications

Due to its unique properties, Nickel 200 finds applications in multiple industries:

• Chemical processing equipment
• Food processing machinery
• Electronics components
• Aerospace applications
• Marine engineering
• Caustic handling systems

Advantages of Nickel 200

The key advantages of using Nickel 200 alloy include:

• High thermal and electrical conductivity
• Excellent ductility and formability
• Good weldability
• Low gas content
• Magnetic permeability below 1.01 at 200 oersteds

When selecting materials for applications requiring high purity nickel with excellent corrosion resistance and mechanical properties, Nickel 200 (UNS N02200) is often the ideal choice.