| Customization: | Available |
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| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Hastelloy is a family of corrosion-resistant nickel-based alloys known for their exceptional resistance to a wide range of aggressive chemicals, high temperatures, and various environments. Hastelloy alloy wire is typically made from one of several specific compositions within the Hastelloy family, each tailored for specific applications. Here's a general description:
Composition: Hastelloy alloy wire is primarily composed of nickel, chromium, molybdenum, and other elements such as cobalt, iron, tungsten, and copper. The specific composition varies depending on the grade of Hastelloy alloy, with variations like Hastelloy C-276, Hastelloy C-22, Hastelloy B-2, and others.
Corrosion Resistance: One of the defining characteristics of Hastelloy alloy wire is its exceptional corrosion resistance. It offers resistance to a wide range of corrosive environments, including oxidizing and reducing media, acids, alkalis, salts, chlorides, sulfides, and seawater. This corrosion resistance makes it suitable for use in harsh chemical processing, petrochemical, and marine environments.
High Temperature Performance: Hastelloy alloy wire retains its mechanical properties at high temperatures, making it suitable for applications where exposure to elevated temperatures is expected. It maintains strength and integrity even in environments with temperatures exceeding 1000°C (1832°F).
Mechanical Properties: Hastelloy alloy wire typically exhibits high tensile strength, excellent toughness, and good ductility, allowing it to be formed, welded, and machined for various applications.
Versatility: Hastelloy alloy wire finds applications across a wide range of industries, including chemical processing, aerospace, oil and gas, pharmaceuticals, pollution control, and power generation. It is used for manufacturing components such as wire mesh, springs, fasteners, heating elements, and corrosion-resistant coatings.
Specialized Grades: Different grades of Hastelloy alloy wire are available to suit specific application requirements. For example, Hastelloy C-276 is known for its resistance to oxidizing and reducing environments, while Hastelloy C-22 offers improved resistance to crevice corrosion and pitting.
Certifications and Standards: Hastelloy alloy wire may be manufactured to various industry standards and specifications, including ASTM (American Society for Testing and Materials), ASME (American Society of Mechanical Engineers), and others, ensuring quality and reliability in demanding applications.
In summary, Hastelloy alloy wire is a versatile and corrosion-resistant material suitable for use in challenging environments where resistance to corrosion, high temperatures, and mechanical stresses is essential.
| Hastelloy C-276 | % | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | S | P | V | Ti |
| Min | Bal | 14.5 | 4 | 2.5 | 0.1 | - | - | - | - | - | - | 0.1 | - | |
| Max | 7 | 16.5 | 4.5 | 15 | 3 | 1 | 0.8 | 1 | 0.001 | 0.015 |
Hastelloy C276, a popular grade within the Hastelloy family, finds numerous applications across various industries due to its exceptional corrosion resistance and mechanical properties. Here are some common applications:
Chemical Processing: Hastelloy C276 is widely used in chemical processing industries for manufacturing reactors, heat exchangers, distillation columns, and piping systems. It offers excellent resistance to a wide range of corrosive chemicals, including sulfuric acid, hydrochloric acid, phosphoric acid, chlorine, and organic acids.
Oil and Gas: In the oil and gas industry, Hastelloy C276 is employed in downhole equipment, tubing, valves, and pipelines for handling corrosive fluids such as sour gas containing hydrogen sulfide (H2S) and chloride ions. Its resistance to stress corrosion cracking (SCC) and pitting makes it ideal for such applications.
Overall, Hastelloy C276 is valued for its versatility, offering excellent resistance to corrosion in aggressive environments, high temperatures, and mechanical stresses, making it a preferred choice for critical applications across various industries.
Pulp and Paper: Hastelloy C276 is used in pulp and paper processing equipment, including bleach plants, digesters, and evaporators, where it provides resistance to corrosive chemicals, high temperatures, and abrasive slurries encountered in the production process.
Power Generation: In power generation facilities, Hastelloy C276 is utilized for fabricating components in boilers, heat exchangers, condensers, and scrubbers, where it withstands the corrosive effects of high-temperature steam, boiler feedwater, and flue gases containing sulfur compounds.
Aerospace and Defense: Hastelloy C276 is employed in aerospace and defense applications for manufacturing components subjected to corrosive environments, such as aircraft fuel systems, missile components, and marine fittings.
Pharmaceutical Industry: Hastelloy C276 is used in pharmaceutical manufacturing equipment, including reactors, vessels, and piping systems, where it provides resistance to corrosion from various chemicals and cleaning solutions used in the production process.
Waste Treatment: Hastelloy C276 finds applications in waste treatment facilities for fabricating equipment used in the handling and treatment of hazardous and corrosive waste streams, such as scrubbers, tanks, and piping systems.
Pollution Control: In pollution control systems, Hastelloy C276 is employed for manufacturing scrubbers, stack liners, and exhaust ducts exposed to corrosive gases and liquids emitted during industrial processes.
The production process for Hastelloy wire typically involves several steps:
Raw Material Preparation: The process begins with selecting high-quality raw materials, typically consisting of nickel, molybdenum, chromium, and other alloying elements required to achieve the desired properties of Hastelloy C276. These materials are carefully measured and mixed to precise compositions.
Melting and Alloying: The blended raw materials are then melted in a vacuum induction furnace or an electric arc furnace at high temperatures. During melting, the alloying elements are thoroughly mixed to ensure uniform composition and desired properties. The molten alloy is then refined to remove impurities and gases.
Casting: Once the alloy is properly refined, it is poured into molds to form ingots or billets. These solidified forms are then processed further through hot working techniques such as hot rolling or extrusion to form intermediate shapes like bars or rods.
Hot Working: The intermediate shapes are then hot worked at elevated temperatures to reduce their cross-sectional area and achieve the desired wire diameter. This process typically involves hot rolling, hot drawing, or hot extrusion to gradually reduce the diameter of the material while maintaining its mechanical properties.
Annealing: After hot working, the wire is subjected to an annealing process to relieve internal stresses, improve ductility, and refine the microstructure. Annealing is typically carried out in controlled atmospheres or vacuum furnaces at specific temperatures and durations tailored to the alloy composition and wire size.
Cold Drawing: The annealed wire is then cold drawn through a series of dies to further reduce its diameter to the final desired size. Cold drawing imparts additional strength, hardness, and surface finish to the wire while also improving dimensional accuracy and concentricity.
Surface Treatment: Depending on the application requirements, the Hastelloy wire may undergo surface treatments such as pickling, passivation, or electroplating to remove surface contaminants, enhance corrosion resistance, or improve adhesion for subsequent coatings.
Testing and Quality Control: Throughout the production process, various quality control measures are implemented to ensure the dimensional accuracy, mechanical properties, and chemical composition of the Hastelloy wire meet the specified standards. Non-destructive testing techniques such as ultrasonic testing and visual inspections are commonly employed to detect any defects or inconsistencies.
Packaging and Shipping: Once the Hastelloy wire passes all quality control checks, it is packaged according to customer specifications and prepared for shipping to end-users or distributors.
By following these steps, manufacturers can produce high-quality Hastelloy wire tailored to meet the demanding requirements of various industrial applications.
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