Heat-Resistant Hastelloy C-4 Plates – Ideal for High-Temperature Applications

Hastelloy C-4 is a nickel-based superalloy renowned for its excellent resistance to high temperatures and aggressive chemical environments. Processed into plates, this material provides superior durability and stability, making it an ideal choice for industries that operate under extreme conditions.

Material Composition and Properties

Hastelloy C-4 consists of a high percentage of nickel, combined with molybdenum and chromium, to enhance its performance in high-temperature applications. Key attributes include:

• Exceptional Heat Resistance: Maintains mechanical strength and corrosion resistance at elevated temperatures.

• Superior Corrosion Resistance: Withstands oxidation, carburization, and stress corrosion cracking.

• High Structural Integrity: Offers excellent weldability and formability for complex fabrication needs.

• Chemical Stability: Performs well in highly acidic and oxidizing environments.

Applications of Hastelloy C-4 Plates

Due to its outstanding thermal and corrosion resistance, Hastelloy C-4 plates are widely used in various industries, including:

1. Chemical Processing Industry: Utilized in reactors, heat exchangers, and pressure vessels that handle extreme temperatures and corrosive substances.

2. Aerospace and Power Generation: Applied in turbine components, exhaust systems, and high-temperature structural elements.

3. Nuclear and Energy Sector: Used in nuclear fuel processing and heat shielding due to its radiation and heat resistance.

4. Pharmaceutical and Food Industry: Ideal for equipment exposed to sterilization and aggressive cleaning agents.

5. Flue Gas Desulfurization Systems: Essential for pollution control applications in power plants and industrial facilities.

Grades and Standards

Hastelloy C-4 is recognized under multiple international standards, ensuring its applicability in various industries:

• UNS Number: N06455

• ASTM Standards: ASTM B575 (Plates and Sheets), ASTM B619/B622 (Pipes & Tubes)

• EN/DIN Equivalent: 2.4610

Manufacturing Process

The production of Hastelloy C-4 plates follows a stringent process to ensure high quality and reliability:

1. Melting and Alloying: The raw materials undergo vacuum induction melting (VIM) or electric arc furnace (EAF) processing.

2. Rolling and Forming: Hot and cold rolling techniques refine the material into precise plate thicknesses.

3. Heat Treatment (Annealing): Enhances ductility and corrosion resistance while stabilizing the structure.

4. Surface Finishing: Includes pickling and passivation to achieve a clean, oxidation-resistant surface.

5. Quality Assurance: Mechanical, chemical, and thermal tests verify compliance with industry standards.

User Requirements and Customization

Industries utilizing Hastelloy C-4 plates often require customized solutions. Common specifications include:

• Custom Dimensions: Plates are available in various thicknesses and widths to fit specific applications.

• Surface Finish Options: Mill finish, polished, or coated to enhance performance.

• Fabrication and Machining: Ensuring compatibility with welding, cutting, and forming processes.

• Compliance with Industry Standards: Materials must meet ASTM, ASME, and other regulatory requirements.