ASME SA266 Grade 2N Carbon Steel Flange Shell Side Flange For Heat Exchanger

Shell Side Flange ASME SA266 Grade 2N Carbon Steel Flange for Heat Exchanger

Yuhong Holdings Group Co., Ltd. is a specialized manufacturer of pressure vessels, with an annual production capacity exceeding 6,000 tons. We provide a wide range of high-quality products, including film evaporators, heat exchangers, reaction vessels, towers, storage tanks, and filters.

SA266 Grade 2N Introduction

ASME SA266 Grade 2N is a high-quality carbon steel material widely used in heat exchangers and pressure vessels. This material offers excellent weldability and machinability, making it suitable for high-temperature and high-pressure environments.

(N = Normalized: Indicates that forgings of this material have been normalized during the manufacturing process to meet specific mechanical property requirements.)

Application Scenario: SA266 Grade 2N forgings are usually used for pressure vessel components (e.g. flanges, pipe plates, etc.) in high pressure or high temperature environments, and the normalizing treatment can improve their impact resistance and stability.

Other Carbon Steel Grades

Common flange material grades and standards

• SA266 Grade 2N: normalized carbon steel forgings, suitable for low pressure, medium temperature conditions (such as heat exchanger shell side flange).
• SA105: general-purpose carbon steel forgings, commonly used in ASME B16.5 standard flanges (PN20~PN50, Class 150~300).
• SA350 LF2: low-temperature carbon steel forgings (working condition below -46°C), suitable for cold environment.
• A694 F42/F52/F60: High strength carbon steel flanges for high pressure pipelines (Class 600 and above).

• SA182 F304/F316: austenitic stainless steel, high corrosion resistance, suitable for acidic or chloride environment.
• SA182 F321/F347: Containing stabilizing elements (Ti/Nb), resistant to high temperature oxidation, used in high temperature working conditions (such as pipe side steam flanges).

• SA387 Gr.11/22: chromium-molybdenum alloy steel, resistant to high temperature and high pressure (such as pipe side high temperature medium flanges).
• SA182 F91/F92: martensitic heat-resistant steel, used in supercritical units or extreme high-temperature environments.

• Duplex stainless steel: e.g. SA182 F51/F53 (2205/2507), chlorine ion corrosion resistant, suitable for seawater cooling systems.
• Nickel-based alloys: e.g. Inconel 625 (SB564 UNS N06625) for strong corrosion or high temperature environments.

Characteristics of Heat Exchanger Flanges

Heat exchanger flanges are crucial components for connecting various parts. They can be categorized into the following types:

• Shell Side Flange: Connects the shell to other components, designed to withstand high pressure and temperature.
• Tube Side Flange: Connects the tube bundle, ensuring proper fluid flow within the tubes.
• Blind Flange: Used to seal the openings of pipes or vessels, facilitating maintenance and inspection.

Conclusion

Yuhong Holdings Group Co., Ltd. is committed to providing high-quality pressure vessels and accessories. Our Shell Side Flange ASME SA266 Grade 2N carbon steel flange is an ideal choice for efficient heat exchange. We look forward to collaborating with you to drive industry advancements.