Nickel 200 (Ni200) is a commercially pure nickel alloy, and it has equivalents in various international standards and specifications, which are defined by their similar chemical composition (≥99.6% nickel) and mechanical properties. Key equivalents include:
UNS (Unified Numbering System): N02200 (the UNS designation directly corresponding to Ni200).
ASTM (American Society for Testing and Materials): ASTM B160 (for nickel plate, sheet, and strip), ASTM B161 (for nickel rod and bar), ASTM B162 (for nickel forgings), and ASTM B163 (for nickel seamless pipe and tube) - all of which cover Ni200.
EN (European Norms): EN 14460 (Nickel and nickel alloys - Plate, sheet and strip) specifies a grade equivalent to Ni200, often referenced as "Ni 99.6" or "2.4060" (the European material number for high-purity nickel).
DIN (German Institute for Standardization): DIN 17740, which includes a pure nickel grade matching Ni200's composition and properties.
JIS (Japanese Industrial Standards): JIS H4551, which defines a pure nickel grade comparable to Ni200 for general industrial use.
These equivalents ensure consistency in performance across global manufacturing and engineering applications.
Nickel 200 is covered by several ASTM standards, each specifying requirements for different forms of the alloy (e.g., plate, pipe, rod). The most relevant ASTM standards are:
ASTM B160: "Standard Specification for Nickel Plate, Sheet, and Strip" - This standard outlines the chemical composition, mechanical properties (tensile strength, elongation), and dimensional tolerances for Ni200 in plate, sheet, and strip forms. It ensures the material meets purity (≥99.6% Ni) and formability requirements for applications like chemical processing and electrical components.
ASTM B161: "Standard Specification for Nickel Rod and Bar" - Governs Ni200 in rod and bar forms, specifying chemical composition, mechanical properties (including hardness for annealed and cold-worked conditions), and machining tolerances. It is used for parts like fasteners, shafts, and structural components.
ASTM B162: "Standard Specification for Nickel Forgings" - Applies to Ni200 forgings, detailing forging processes, heat treatment, and testing requirements to ensure strength and integrity in forged components such as valves and fittings.
ASTM B163: "Standard Specification for Nickel Seamless Pipe and Tube" - Covers Ni200 seamless pipes and tubes, specifying wall thickness, pressure ratings, and corrosion resistance criteria for use in fluid transport in chemical and petrochemical industries.
These standards are critical for quality control, ensuring Ni200 materials perform reliably in their intended applications.
Yes, Nickel 200 (Ni200) is magnetic. Nickel is a ferromagnetic material, meaning it is attracted to magnets and can be magnetized itself, even in its pure form. Ni200, being a high-purity nickel alloy (≥99.6% Ni) with minimal impurities (e.g., copper, iron), retains this ferromagnetic property.
However, its magnetic behavior is influenced by temperature. Nickel has a Curie temperature (the temperature above which ferromagnetism is lost) of approximately 355°C (671°F). Below this temperature, Ni200 exhibits strong ferromagnetism; above it, it becomes paramagnetic (weakly attracted to magnetic fields).
This magnetic property makes Ni200 useful in applications requiring magnetic responsiveness, such as certain electrical components and sensors, while also being a consideration in designs where magnetic interference must be managed.
