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Hastelloy C276, a nickel-molybdenum-chromium alloy renowned for its exceptional corrosion resistance and high-temperature stability, is prominent among industrial materials. Hastelloy C276 plates, a common form of this alloy, have found widespread usage across various sectors due to their remarkable properties and versatility.

Hastelloy C276 belongs to the Hastelloy family of alloys, engineered to withstand corrosive environments, extreme temperatures, and challenging conditions. Developed by Haynes International Inc., Hastelloy C276 plates offers superior resistance to oxidizing and reducing acids, making it suitable for use in highly corrosive settings. Its chemical composition comprises nickel, molybdenum, chromium, iron, and smaller quantities of other elements, contributing to its unique properties.

Chemical Composition of Hastelloy C276 Plates

Discover the Chemical Composition of Hastelloy C276 Plates through this informative table analysis.

Hastelloy C2760.010 max1.00 max0.08 max0.03 max2.50 max50.99 min*14.50 – 16.504 – 715 – 170.04 max

Hastelloy C276 plates exhibit a balanced chemical composition, enhancing performance and versatility across applications.

Mechanical Properties of Hastelloy C276 Plates

The table provides a detailed breakdown of key elements in the Mechanical Properties of Hastelloy C276 plates.

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
8.89 g/cm31370 °C (2500 °F)Psi – 1,15,000 , MPa – 790Psi – 52,000 , MPa – 35540 %

This table outlines important Mechanical Properties and performance features of Hastelloy C276 plates.

Key Characteristics of Hastelloy C276 Plates:

  1. Corrosion Resistance: Hastelloy C276 plates exhibit exceptional corrosion resistance in various aggressive environments, including sulfuric acid, hydrochloric acid, phosphoric acid, and chlorine dioxide solutions. This resistance extends to uniform and localized corrosion, making it highly desirable for industries dealing with corrosive substances.
  2. Chemical Stability: The alloy maintains its integrity even in harsh chemical environments, where other materials may corrode or degrade rapidly. This stability ensures the longevity and reliability of equipment fabricated from Hastelloy C276 plates, reducing maintenance costs and downtime.
  3. High-Temperature Performance: Hastelloy C276 plates retains its mechanical properties at elevated temperatures, withstanding temperatures up to 1900°F (1038°C) without significant degradation. This attribute makes it suitable for applications involving high temperatures, such as combustion chambers, exhaust systems, and process heaters.
  4. Mechanical Strength: Hastelloy C276 plates possess excellent mechanical strength and toughness, allowing them to withstand mechanical stress and load-bearing requirements in various industrial applications.
  5. Weldability: The alloy exhibits good weldability, enabling complex structures and assemblies to be fabricated. Proper welding techniques and compatible filler materials ensure strong and durable weld joints, maintaining the corrosion resistance of the final product.

Applications of Hastelloy C276 Plates:

  • Chemical Processing Industry: Hastelloy C276 plates find extensive use in chemical processing plants for equipment such as reactors, vessels, columns, and piping systems. Their corrosion resistance and chemical stability make them ideal for handling corrosive acids, alkalis, and organic solvents.
  • Petrochemical Industry: In the petrochemical sector, Hastelloy C276 plates are employed in critical applications, including distillation columns, heat exchangers, and piping systems. They withstand the corrosive effects of hydrocarbons, acids, and chlorides in oil refining and petrochemical processes.
  • Oil and Gas Sector: Hastelloy C276 plates play a vital role in the oil and gas industry, particularly upstream and downstream operations. They are used in equipment such as valves, pumps, tubing, and downhole components, where exposure to corrosive fluids, high pressures, and elevated temperatures is common.
  • Pharmaceutical Manufacturing: Pharmaceutical companies rely on Hastelloy C276 plates to produce chemical processing equipment for drug manufacturing and synthesis. These plates ensure the purity of pharmaceutical products by resisting corrosion and contamination in aggressive chemical environments.
  • Pollution Control Systems: Hastelloy C276 plates are integral to pollution control equipment, including scrubbers, absorbers, and stack liners, where they mitigate the effects of corrosive gases, acids, and particulate matter emitted from industrial processes.

Manufacturing Process of Hastelloy C276 Plates:

  1. Raw Material Preparation: The manufacturing process begins with selecting high-quality raw materials, including nickel, molybdenum, chromium, and other alloying elements, ensuring precise control over the alloy composition.
  2. Melting and Alloying: The raw materials are melted in a controlled environment, typically using electric arc or induction melting techniques. Alloying elements are added to achieve the desired composition and properties of Hastelloy C276 plates.
  3. Casting or Forming: The molten alloy is cast into ingots, billets, or slabs through casting or forming processes. These semi-finished products serve as the starting material for subsequent processing steps.
  4. Hot Rolling: The cast ingots or slabs are reheated and hot-rolled into plates of various thicknesses. Hot rolling helps refine the alloy's microstructure, improve mechanical properties, and achieve the desired plate dimensions.
  5. Cold Rolling and Annealing: Cold rolling further reduces the thickness of the plates while enhancing their surface finish and dimensional accuracy. Subsequent annealing processes relieve internal stresses, refine the grain structure, and optimize the Material's properties for specific applications.
  6. Surface Treatment and Finishing: Hastelloy C276 plates may undergo surface treatments such as pickling, passivation, or mechanical polishing to remove surface contaminants, oxide layers, and impurities. These treatments improve the plates' corrosion resistance, aesthetics, and surface quality.
  7. Quality Control and Inspection: Stringent quality control measures are implemented throughout the manufacturing process to ensure compliance with industry standards and customer specifications. Non-destructive testing, dimensional inspections, and material analysis are conducted to verify the quality and integrity of the Hastelloy C276 plates.

Advantages of Hastelloy C276 Plates:

  • Superior Corrosion Resistance: Hastelloy C276 plates offer unparalleled resistance to various corrosive media, including acids, alkalis, chlorides, and oxidizing agents, ensuring long-term performance and reliability in corrosive environments.
  • Extended Service Life: Equipment fabricated from Hastelloy C276 plates benefits from extended service life and reduced maintenance requirements due to their robust construction, corrosion resistance, and high-temperature stability.
  • Versatility and Adaptability: The versatility of Hastelloy C276 plates allows them to be used in diverse industrial applications, spanning multiple sectors such as chemical processing, petrochemicals, oil and gas, pharmaceuticals, and pollution control.
  • High-Temperature Performance: Hastelloy C276 plates maintains its mechanical strength and corrosion resistance at elevated temperatures, making it suitable for applications involving thermal cycling, high-temperature exposure, and rapid temperature changes.
  • Cost-Effective Solutions: Despite being a premium alloy, Hastelloy C276 plates offer cost-effective solutions for industries facing corrosion-related challenges, as their durability, reliability, and performance outweigh the initial investment.
  • Environmental Compatibility: Hastelloy C276 plates is environmentally friendly and compliant with regulations governing hazardous materials, making it a sustainable choice for industries prioritizing environmental stewardship and compliance.

Hastelloy C276 plates represent engineering excellence, combining superior corrosion resistance, high-temperature stability, mechanical strength, and weldability.

FAQ's for Hastelloy C276 Plates

The price of Hastelloy C276 Plates starts from Rs. 200/Kilogram To Rs. 500/Kilogram

Hastelloy C276 is a corrosion-resistant alloy, and it is highly resistant to rust. However, any material can rust if the conditions are severe enough and if the alloy is not properly maintained or protected.

No, Hastelloy C276 Plates are non-magnetic alloy made of nickel, molybdenum, and chromium.

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