Nickel (Ni) is a chemical element with atomic number 28. It is a silvery-white, hard, malleable, and ductile metal known for its strength, corrosion resistance, and ability to alloy with a wide range of materials. Nickel is one of only four elements that are ferromagnetic at or near room temperature, making it valuable in various applications requiring magnetic properties. It is also a fair conductor of heat and electricity.

Economic and Industrial Properties

• Stainless Steel Production: Approximately 68% of global nickel production is used in the manufacture of stainless steel, enhancing its strength, ductility, and resistance to corrosion and heat.
• Nickel Alloys in Aerospace and Defense: Nickel alloys are essential in aerospace and defense industries due to their exceptional strength and resistance to extreme temperatures. Components like nickel alloy fasteners are used extensively in jet engines, turbines, and spacecraft components, ensuring reliability in high-stress environments.
• Rechargeable Batteries: Nickel is a key component in various rechargeable batteries, including nickel-cadmium (NiCd), nickel-metal hydride (NiMH), and lithium-ion batteries, powering devices like smartphones, laptops, and electric vehicles.
• Electroplating: Nickel is widely used in electroplating to provide a corrosion-resistant and aesthetically appealing finish on various products, including coins, jewelry, and industrial components.
• Superalloys: Nickel-based superalloys are used in turbine engines and other high-temperature applications due to their ability to withstand extreme conditions while maintaining structural integrity.