Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A182 F316L / UNS S31603 / 1.4404 Stainless Steel Tubesheet for Heat Exchanger
A tubesheet is a flat plate or a thick disc with holes drilled in it to accommodate the ends of tubes. It separates the two fluids in a heat exchanger—one flows through the tubes, while the other passes around them. Tube holes can be drilled and reamed and can be machined with one or more grooves. It serves as a support structure for the tubes, maintains the integrity of the heat exchanger or boiler, and helps prevent leaks between the two fluids. According to different working environment, tubesheets can be made of carbon steel, stainless steel, duplex, nickel alloy and some cladding materials.
| 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 |
| Non Ferrous | |
| 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. |
The shell and tube exchanger consists of four major parts:
Front Header—this is where the fluid enters the tubeside of the exchanger. It is sometimes referred to as the Stationary Header.
Rear Header—this is where the tubeside fluid leaves the exchanger or where it is returned to the front header in exchangers with multiple tubeside passes.
Tube bundle—this comprises of the tubes, tube sheets, baffles and tie rods etc. to hold the bundle together.
Shell—this contains the tube bundle.
One of the most common heat exchangers in service within industrial process applications is the “Shell & Tube Heat Exchanger”.
They are available in many shapes, sizes and have been used in industry for over 150 years. In this exchanger group are various
sub design types: Fixed, U-tube and Floating tubesheet. Variations of all can be denoted as type “E”, “F”, “G”, “H”, “J”, “K” or “X”.
The main applications are where high pressure/temperatures are key considerations. Loosely, general designs consist of the or an
outer shell in which resides a tube bundle (these can be configured as finned, plain etc) sealed at each end by a tube sheet which
isolates the tubes and the outer shell.
Application
Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry and general pipes connecting projects etc.