Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A182 F304 / UNS S30400 Stainless Steel Tubesheet Heat Exchanger Tube Plates
A tubesheet (or tube plate) is a crucial component in heat exchangers and other similar systems. The design can vary based on the type of heat exchanger (shell-and-tube, air-cooled, etc.) and the specific requirements for pressure, temperature, and fluid type. Tubesheet provides structural support for the tubes, preventing them from moving and ensuring a tight seal. It separates the two fluid streams, allowing heat transfer while preventing mixing. The available materials including: stainless steel, carbon steel, titanium, alloy steel and cladding steel depending on the using environment & application.
Specification
| Type of materials | Technical requirements * according to |
| Duplex Stainless Steel | ASTM/ASME SA182 F44, F45, F51, F53, F55, F60, F61 |
| Stainless Steel | ASTM/ASME SA182 F304,304L,F316,316L, F310, F317L, F321, F347 |
| Carbon Steel | ASTM/ASME A105, A350 LF1, LF2, A266, A694, A765 Gr.2 |
| Alloy Steel | ASTM/ASME SA182 F1, F5, F9, F11, F12, F22, F51, A350-LF3 |
| Titanium | ASTM/ASME SB381, Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16 |
| Copper Nickel | ASTM/ASME SB151, UNS 70600(Cu-Ni 90/10), 71500(Cu-Ni 70/30) |
| Brass, Al-brass | ASTM/ASME SB152 UNS C10100, C10200,C10300,C10800,C12200 |
| Nickel Alloys | ASTM/ASME SB169,SB171, SB564, UNS 2200, UNS 4400, UNS 8825 UNS 6600, UNS 6601, UNS 6625 |
| Alloy 20 | ASTM/ASME SB472 UNS 8020 |
| Hastelloy | ASTM/ASME SB564, UNS10276 ( C 276 ) |
| Claded materials | ASTM/ASME SB898, SB263, SB264 or closer explosion cladding, making materials of 2 in 1 or 3 in 1. |
| Titanium- Steel, Nickel-Steel,Titanium- Copper, Stainless Steel- Carbon Steel, Alloys- Steel etc. |
Types of Tubesheets:
Flat Tubesheets: Commonly used in shell-and-tube heat exchangers. They provide a flat surface for the tubes to be installed.
Drilled Tubesheets: Feature holes where tubes are inserted. The hole size and spacing are critical for efficient heat transfer.
Partition Tubesheets: Used in applications where separate fluid streams are required, often creating different sections in a heat exchanger.
Design Considerations:
Thickness: Tubesheets are designed to withstand pressure and temperature variations, so the thickness may vary based on these factors.
Hole Size and Spacing: Engineers must consider the diameter and arrangement to optimize fluid flow and heat transfer.
Thermal Expansion: Due to changes in temperature, tubesheets must accommodate thermal expansion to prevent stress or damage.
Welding and Joining:
Tubesheet Welding: The tubes are often welded to the tubesheet for leak prevention, ensuring a strong connection that can withstand pressure fluctuations.
Seal Welds: These may be added to improve sealing between the tube and the tubesheet.
Manufacturing Techniques: Precision is key in the manufacturing process to avoid any misalignment when inserting tubes.
Corrosion Resistance:
Given the harsh conditions (chemicals, heat), choosing the right material is essential to prevent corrosion. Stainless steel and titanium are frequently utilized.
Protective Coatings: Sometimes, coatings are applied to enhance corrosion resistance, especially in aggressive environments.
Maintenance:
Regular inspection schedules can help catch problems early, extending the lifespan of the heat exchanger.
Cleaning procedures may be necessary to remove deposits that can accumulate on the tubesheet over time.
Application
Chemical Process Plants: Used for cooling, heating, or condensing fluids.
Power Generation: Critical in steam generation and cooling systems.
Oil & Gas Industry: Involved in processes like heat recovery and refrigeration.
