Hastelloy B-2 Plates – High-Quality Material for Corrosive Environments

Hastelloy B-2 is a nickel-molybdenum alloy known for its excellent resistance to reducing environments such as hydrochloric acid. Manufactured into plates, this material offers outstanding performance in highly corrosive conditions, making it an ideal choice for industries that require superior durability and chemical resistance.

Material Composition and Properties

Hastelloy B-2 is composed mainly of nickel and molybdenum, which provide the following key advantages:

• Exceptional Corrosion Resistance: Highly resistant to hydrochloric acid and other strong reducing agents.

• Superior Mechanical Strength: Maintains its integrity in high-stress and high-temperature environments.

• Good Weldability: Can be easily welded and fabricated without significant carbide precipitation.

• High Thermal Stability: Suitable for applications that require consistent performance at elevated temperatures.

Applications of Hastelloy B-2 Plates

Due to its high resistance to corrosion, Hastelloy B-2 plates are widely used in various industries, including:

1. Chemical Processing Industry: Used in heat exchangers, reactors, and pressure vessels exposed to aggressive chemical environments.

2. Pharmaceutical and Biotechnology Industry: Essential for equipment handling highly reactive substances in sterile environments.

3. Power Generation and Energy Sector: Applied in systems that require materials capable of withstanding high temperatures and corrosion.

4. Pulp and Paper Industry: Used in processing equipment exposed to acidic and caustic substances.

5. Aerospace and Marine Engineering: Ideal for components exposed to harsh chemical and marine conditions.

Grades and Standards

Hastelloy B-2 plates conform to various international standards to ensure quality and performance:

• UNS Number: N10665

• ASTM Standards: ASTM B333 (Plates, Sheets, and Strips)

• EN/DIN Equivalent: 2.4617

Manufacturing Process

The production of Hastelloy B-2 plates follows a strict process to maintain high standards and precision:

1. Melting and Alloying: The alloy undergoes 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 dimensions.

3. Heat Treatment (Annealing): Enhances ductility and corrosion resistance.

4. Surface Finishing: Pickling and passivation ensure a clean, corrosion-resistant surface.

5. Quality Control: Rigorous testing, including chemical composition analysis and mechanical property evaluation, guarantees compliance with industry requirements.

User Requirements and Customization

Industries that use Hastelloy B-2 plates often require specific customization to meet their operational needs. Common specifications include:

• Varied Thickness and Dimensions: Plates are available in different sizes for various industrial applications.

• Surface Finish Options: Mill finish, polished, or coated for enhanced durability.

• Weldability and Machinability: Ensuring compatibility with different fabrication techniques.

• Compliance with Regulatory Standards: Meeting ASTM, ASME, and other global certifications.

Conclusion

Hastelloy B-2 plates provide unparalleled resistance to highly corrosive environments, making them essential for industries requiring durable and high-performance materials. Their superior mechanical properties, thermal stability, and customization options make them an excellent choice for demanding industrial applications.