NACE & HIC Boiler Plates are specialized steel plates designed to resist the harsh effects of hydrogen-induced cracking (HIC) and other forms of corrosion in environments containing hydrogen sulfide (H₂S). These plates are commonly used in industries like oil and gas, petrochemical, and chemical processing, where exposure to sour gas conditions is common. The combination of NACE (National Association of Corrosion Engineers) standards and HIC resistance ensures that these plates provide enhanced durability and safety in highly corrosive environments.

Key Features of NACE & HIC Boiler Plates:

1. Hydrogen-Induced Cracking (HIC) Resistance: These plates are designed to prevent cracking caused by hydrogen diffusion into steel. HIC resistance is crucial in applications exposed to H₂S, where hydrogen-induced damage can occur in pressure vessels and pipelines.

2. NACE MR0175/ISO 15156 Compliance: NACE-compliant plates meet the stringent standards set by NACE MR0175/ISO 15156 for materials used in sour gas service, ensuring they perform well in environments with a high presence of hydrogen sulfide.

3. High Corrosion Resistance: These plates are treated and processed to resist sulfide stress cracking (SSC) and other forms of corrosion, providing long-term durability and reliability in corrosive environments.

4. Superior Strength and Toughness: NACE & HIC Boiler Plates offer excellent mechanical properties, including high tensile strength and toughness, making them ideal for use in pressure vessels and boilers subjected to extreme pressures and temperatures.

Applications:

• Sour Gas Service: Used in the oil and gas industry for equipment exposed to sour gas (containing H₂S), such as separators, pipelines, and storage tanks.
• Petrochemical and Chemical Industries: These plates are crucial in chemical processing units and refineries where corrosive fluids or gases are present.
• Pressure Vessels: NACE & HIC Boiler Plates are used to manufacture pressure vessels designed to handle sour service conditions and withstand internal pressures without cracking.
• Boilers: Commonly used in industrial boilers that operate under high pressure and temperature, especially in environments prone to hydrogen sulfide corrosion.

Common Grades of NACE & HIC Boiler Plates:

• ASTM A516 Grade 70 HIC/NACE: One of the most widely used grades for pressure vessels and boilers, offering superior resistance to HIC and SSC, along with high strength and weldability.
• EN 10028-2 P265GH HIC/NACE: European standard pressure vessel steel with good weldability and high resistance to H₂S-induced cracking.

Benefits:

• Increased Safety: By preventing hydrogen-induced cracking, these plates ensure that boilers and pressure vessels maintain their integrity, even in harsh operating conditions, reducing the risk of catastrophic failure.
• Longer Service Life: With enhanced resistance to corrosion and cracking, NACE & HIC plates contribute to the longevity of the equipment they are used in, reducing the need for frequent replacements or repairs.
• Versatility: Suitable for a wide range of high-pressure applications, especially in sour service environments, these plates are used across multiple industries.

NACE & HIC Boiler Plates are indispensable for applications where hydrogen sulfide corrosion is a concern. Manufactured to meet rigorous international standards, they offer a reliable solution for critical equipment exposed to sour gas and other corrosive substances.