ASTM A240 SS304 Tubesheet For Heat Exchanger Accessories

ASTM A240 SS304 Tubesheet Applied for Heat Exchanger Accessories

What is A240 SS304 Tubesheet?

A240 SS304 Tubesheet is a type of tube sheet made from stainless steel of the 304 grade. It is used in heat exchangers, condensers, boilers, and other pressure vessels where tubes are used to transfer heat or fluids. The A240 specification refers to the ASTM standard for stainless steel plate, sheet, and strip used for pressure vessel applications. The SS304 grade is a widely used austenitic stainless steel with good corrosion resistance, high strength, and excellent formability. The tubesheet is a critical component in the heat exchange system, as it holds the tubes in place and provides a leak-proof seal between the tubes and the shell.

What is Stainless Steel 304 Chemical Composition?

Stainless Steel 304 is an austenitic stainless steel, and its chemical composition is as follows:
- Chromium (Cr): 18.0% - 20.0%
- Nickel (Ni): 8.0% - 10.5%
- Carbon (C): 0.08% max
- Manganese (Mn): 2.0% max
- Silicon (Si): 1.0% max
- Phosphorus (P): 0.045% max
- Sulfur (S): 0.030% max
- Iron (Fe): Balance

Stainless Steel 304 is the most widely used stainless steel grade due to its excellent corrosion resistance, high ductility, and good weldability. Its low carbon content makes it suitable for welding and provides better resistance to intergranular corrosion. Stainless Steel 304 is widely used in various industries, including food processing, chemical processing, and medical devices.

What is Stainless Steel 304 mechanical properties?

Stainless Steel 304 has a range of mechanical properties, including:

- Tensile strength: 515 MPa (75,000 psi)

- Yield strength: 205 MPa (30,000 psi)

- Elongation: 40%

- Hardness: 201 Brinell (max)

- Modulus of elasticity: 193 GPa (28 x 10^6 psi)

These values may vary depending on the specific form of Stainless Steel 304, such as sheet, plate, or pipe, as well as the heat treatment and manufacturing process. Generally, Stainless Steel 304 has good mechanical properties, combined with its corrosion resistance and weldability, making it a versatile material used in a wide range of applications.

What's the application of A240 SS304 Tubesheet?

A240 SS304 Tubesheets are used as end plates for tube bundles in shell and tube heat exchangers and other types of pressure vessels. They serve as a barrier between the fluid inside the tube and the exterior environment, preventing leaks, cross-contamination, and corrosion. A240 SS304 Tubesheets are selected for their corrosion resistance, high strength, good formability, and weldability. They are commonly used in heat exchangers with corrosive hot or cold fluids or in applications where hygiene and cleanliness are essential. A240 SS304 Tubesheets are also often used in conjunction with A240 SS304 tubes in heat transfer systems where a variety of fluids or gases need to be exchanged.

The applications of A240 SS304 Tubesheets are broad:

-Chemical and petrochemical processing

-Power generation

-HVAC systems

-Food and beverage processing

-Pharmaceutical industries.