Overview
Pure nickel alloy plates, bars, and tubes are essential materials in industries requiring high corrosion resistance and thermal stability. Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) are the most common commercial grades, differing primarily in carbon content. These materials are valued for their durability in aggressive environments, including chemical processing and marine applications. Nickel's face-centered cubic (FCC) structure ensures excellent formability and weldability, making it suitable for fabricating complex components. The alloy is often used where maintaining material purity is critical, such as in food processing or semiconductor manufacturing.
Physical and Chemical Properties
Pure nickel exhibits exceptional resistance to caustic alkalis and various organic acids, maintaining stability up to 600°F (316°C). Its thermal conductivity (90.9 W/m·K at 25°C) surpasses many stainless steels, while its electrical resistivity (6.84 μΩ·cm) makes it valuable in electronic applications. The material maintains good mechanical properties across a wide temperature range, with tensile strength of 55-80 ksi (379-552 MPa) and elongation of 40-50% in annealed conditions. Nickel 201, with lower carbon content (<0.02%), is preferred for high-temperature applications above 600°F to prevent embrittlement.
Main Applications
In chemical processing, nickel plates line reactors handling caustic soda or fatty acid production. Bars serve as electrodes in chlor-alkali cells, while tubes transport corrosive media in heat exchangers. The aerospace industry utilizes nickel components in turbine engines and fuel systems. The electronics sector employs nickel for lead frames, battery components, and RF shielding due to its electromagnetic properties. Marine engineers specify nickel alloys for seawater piping systems and offshore platform components exposed to saline environments.
Safety and Storage
While solid nickel presents minimal health risks, grinding or welding operations require dust control measures. NIOSH recommends a REL of 0.015 mg/m³ for nickel metal fumes. Storage areas should be separate from acids and oxidizers to prevent chemical reactions. Proper handling includes using gloves to prevent skin irritation from prolonged contact and eye protection during machining. Nickel materials should be clearly labeled and stored on pallets to prevent floor contact contamination in industrial settings.
B2B Procurement Guide
Industrial buyers should specify material certification to relevant ASTM standards: B160 for bars, B161 for tubes, and B162 for plates. Critical parameters include mill test reports for chemical composition and mechanical properties verification. Lead times vary by product form, with plates commonly available from stock, while custom-sized bars/tubes may require 4-8 weeks production. Consider ordering from mills with NADCAP accreditation for aerospace applications or ASME certification for pressure vessel components.
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