ASME SA336 F5 Tubesheet For Heat Exchanger Application , 100% PT and UT

SPECIFICATION:

A tubesheet is usually made from a round flat piece of plate, sheet with holes drilled to accept the tubes or pipes in a accurate location and pattern relative to one another.The tube sheets are used to support and isolate tubes in heat exchangers and boilers or to support filter elements. Tubes are attached to the tube sheet by hydraulic pressure or by roller expansion.

Size: 200mm ~ 9000mm

Standard: ASTM A182 , ASME SA182 , ASTM A336, ASME SA336 , ASME II

Type of Tubesheet: Stationary Tubesheet, Floating Tubesheet

ASME SA-336 Grade F5 ASME SA-336/SA-336M Mechanical Properties

The mechanical properties of the ASME SA-336 Grade F5 ASME SA-336/SA-336M grade are as follows: Ultimate Tensile Strength (UTS) – 65 ksi, 0.2% Yield Strength (YS) – 35 ksi, and Elongation – 40%. The Impact energy values for this grade of steel lies between 20 and 35 ft-lbs.

Introduction of mechanical properties ASME SA-336 Grade F5 ASME SA-336/SA-336M:
Yield point(σs)When the stress of ASME SA-336 Grade F5 ASME SA-336/SA-336M or specimen exceeds the elastic limit in tension, even if the stress does not increase, the ASME SA-336 Grade F5 ASME SA-336/SA-336M or specimen will continue to undergo obvious plastic deformation. This phenomenon is called yielding, and the minimum stress value when yielding occurs is called yield point.
Tensile Strength(σb) : The maximum stress of ASME SA-336 Grade F5 ASME SA-336/SA-336M during tension from the beginning to the time of fracture. It indicates the ability of ASME SA-336 Grade F5 ASME SA-336/SA-336M to resist fracture.
Elongation(δs) : The percentage of the plastic elongation length to the original sample length is called elongation.
Yield-strength ratio(σs/σb) : The ratio of yield point (yield strength) to tensile strength of ASME SA-336 Grade F5 ASME SA-336/SA-336M is called its yield strength ratio. The greater the yield-strength ratio, the higher the reliability of structural parts.
Hardness: Hardness is the ability of ASME SA-336 Grade F5 ASME SA-336/SA-336M to resist hard objects pressing into its surface. The higher the hardness, the better the wear resistance.

An annealing process is recommended for the ASME SA-336 Grade F5 ASME SA-336/SA-336M after welding. The annealing temperature range recommended for this type of steel is between 1900-2150°F. Stress relief should also be applied if the steel is exposed to high temperatures after welding.

The physical properties of ASME SA-336 Grade F5 ASME SA-336/SA-336M include high strength, low weight, durability, ductility and resistance to corrosion. Steel, as we all know, offers great strength though it is light in weight. In fact, the ratio of strength to weight for steel is the lowest than any other building material available to us.

ASME SA-336/SA-336M SA-336 Grade F5 Recent List

• ASME SA-336/SA-336M SA-336 Grade F3VCb
• ASME SA-336/SA-336M SA-336 Grade F3V
• ASME SA-336/SA-336M SA-336 Grade F22V
• ASME SA-336/SA-336M SA-336 Grade F22 Class 3
• ASME SA-336/SA-336M SA-336 Grade F22 Class 1
• ASME SA-336/SA-336M SA-336 Grade F21 Class 3
• ASME SA-336/SA-336M SA-336 Grade F21 Class 1
• ASME SA-336/SA-336M SA-336 Grade F12
• ASME SA-336/SA-336M SA-336 Grade F11 Class 3
• ASME SA-336/SA-336M SA-336 Grade F11 Class 2
• ASME SA-336/SA-336M SA-336 Grade F11 Class 1
• ASME SA-336/SA-336M SA-336 Grade F1
• ASME SA-335/SA-335M SA-335 Grade P92
• ASME SA-335/SA-335M SA-335 Grade P91
• ASME SA-335/SA-335M SA-335 Grade P9
• ASME SA-335/SA-335M SA-335 Grade P5c
• ASME SA-335/SA-335M SA-335 Grade P5b
• ASME SA-335/SA-335M SA-335 Grade P5
• ASME SA-335/SA-335M SA-335 Grade P22
• ASME SA-335/SA-335M SA-335 Grade P21

The material grade of a tubesheet is typically selected based on the specific requirements of the heat exchanger or boiler in which it is being used. Common materials used for tubesheets include carbon steel, stainless steel, and various alloys such as titanium, Inconel, and Monel.

The selection of material grade is influenced by factors such as the operating temperature and pressure of the heat exchanger, the type of fluid being processed, corrosion resistance requirements, and cost considerations. It is important to choose a material grade that can withstand the conditions of the application and provide long-term durability and performance.

Consulting with a materials engineer or heat exchanger manufacturer can help determine the most suitable material grade for a particular tubesheet application. Testing and analysis may also be conducted to ensure that the selected material meets the required specifications and standards for the heat exchanger.

Tubesheets are a critical component in various types of heat exchangers, boilers, and other equipment where tubes need to be securely attached and sealed. Some common applications of tubesheets include:

1. Heat Exchangers: Tubesheets are used in shell-and-tube heat exchangers to support and secure the tubes that carry the hot and cold fluids. The tubesheet provides a leak-proof seal between the tube bundle and the shell, ensuring efficient heat transfer between the two fluids.

2. Boilers: In boilers, tubesheets are used to support the boiler tubes that carry the hot gases or water. The tubesheets play a crucial role in maintaining the structural integrity of the boiler and preventing leaks between the tubes and the boiler shell.

3. Condensers: Tubesheets are also used in condensers to support the tubes that carry the cooling water or refrigerant. The tubesheets help maintain the alignment and integrity of the tube bundle, ensuring efficient heat transfer and preventing leaks.

4. Pressure Vessels: Tubesheets are employed in pressure vessels that require a bundle of tubes for heat exchange or fluid processing. The tubesheets provide a secure attachment point for the tubes and help maintain the pressure integrity of the vessel.

5. Heat Recovery Steam Generators (HRSG): HRSG units use tubesheets to support the heat exchange tubes that transfer heat from the exhaust gases of a gas turbine to generate steam for power generation. The tubesheets play a critical role in maintaining the efficiency and reliability of the HRSG system.

Overall, tubesheets are essential components in various industrial applications where secure attachment, sealing, and efficient heat transfer between tubes and surrounding fluids are required. Proper selection of materials, design, and fabrication of tubesheets is crucial to ensuring the performance and longevity of the equipment in which they are used.