Cangzhou Avant International Trade Co., Ltd. is one of the leading manufacturers and suppliers of forged tube sheet in China. We are committed to providing high quality customized products with competitive price. Welcome to wholesale cheap forged tube sheet in stock here from our factory. Also, free sample is available.
Common types of tube sheets include fixed, floating, and double tube sheet designs. Fixed tube sheets are the most widely used; they are attached directly to the shell at both ends, offering a simple structure and manageable costs-a standard choice for most conventional cooling and heating heat exchangers. Floating tube sheets, by contrast, allow one end to slide freely, which accommodates the significant thermal expansion of the tube bundle under high-temperature conditions and prevents thermal stress from causing the tubes to crack. Double tube sheets are typically employed in high-risk applications where the intermixing of media is strictly prohibited-such as in the pharmaceutical industry, processes involving high-purity substances, or the handling of toxic chemical materials. The two plates create a leak-detection cavity; even if a single expansion joint or weld develops a leak, the fluids cannot mix directly, providing a much higher level of safety redundancy-though this comes at a significantly higher manufacturing cost.
The material selection for a tube sheet is dictated entirely by the operating pressure, temperature, and the corrosiveness of the media. Carbon steel-such as forged Q345R or 20MnMo-is the most common choice, offering excellent cost-effectiveness for applications involving low-to-medium pressure steam, circulating water, or standard oils. For corrosive environments containing chloride ions or weak acids and bases, grades like 304, 316L, or 2205 duplex stainless steel are used. In high-temperature hydrogenation processes or highly corrosive environments, materials such as 15CrMo, nickel-based alloys, or titanium are utilized. Another option is the composite overlay tube sheet, which utilizes a high-strength carbon steel base material with a corrosion-resistant alloy layer applied to the contact surface. This approach avoids the need to manufacture the entire component from expensive, specialized materials, making it a popular, cost-effective solution for overseas chemical projects.
Materials: Selected based on operating conditions. Q345R carbon steel is typically used for standard applications; stainless steel (e.g., 316L), titanium alloys, duplex stainless steels, or nickel-based alloys are employed for corrosive environments; and alloy steels (e.g., 15CrMoR, 16Mn) are commonly used for high-pressure, high-temperature service. Thick-walled carbon steel tube sheets are also frequently overlaid with stainless steel or nickel-based alloys to achieve a balance between structural strength and corrosion resistance.
Manufacturing Methods: Options include plate cutting or integral forging. For high-pressure, large-diameter, or nuclear-grade applications, integral forging is generally required to ensure a dense, uniform microstructure free of weld seams.
Key Processing Considerations: Precision in tube hole diameter tolerances, hole spacing, perpendicularity, and internal surface finish is critical, as these factors directly influence the quality of tube expansion or welding, as well as the reliability of the seal. Large-scale tube sheets are typically processed using CNC drilling machines or gantry-type machining centers.
Production adheres to domestic standards for pressure-bearing forgings, such as GB/T151 and NB/T47008. For export projects, we support ASME and TEMA codes and can provide ASME-stamped certification. Each unit is supplied with comprehensive documentation, including material test reports, ultrasonic testing (UT) records, and dimensional inspection reports. Features such as expansion grooves and weld bevel configurations can be customized according to client drawings. Many EPC clients choose to bundle their orders-including baffle plates, flanges, insulated pipe supports, and spring hangers-to receive a complete heat exchanger system from a single source, streamlining coordination.
Whether you represent a design institute, an international EPC contractor, or an equipment manufacturing firm, simply provide your drawings, design pressure and temperature, process medium, tube bundle specifications, and hole pattern. Our technical team will review the process plan and evaluate the feasibility of forging and machining to meet your requirements. We offer OEM and non-standard customization, accommodating a wide range of sizes and diameters. Products are shipped using rust-proof protective wrapping secured on wooden pallets, and we ensure reliable lead times for bulk orders. Please feel free to send us your drawings or technical specifications so we can discuss your requirements and provide a quote.
Hot Tags: forged tube sheet, China forged tube sheet manufacturers, suppliers, factory
