ASME SA516 Gr.70N Carbon Steel Stationary Tubesheet Heat Exchanger Parts

Tube sheets are widely used in industries such as tubular heat exchangers, boilers, pressure vessels, steam turbines, and large central air conditioning.

Mainly used in chemical containers, such as tubular heat exchangers, pressure vessels, boilers, condensers, central air conditioning, evaporators, and seawater desalination, it plays a role in supporting and fixing the tubular structure. The metal material not only makes it highly rigid, but also has great thermal conductivity performance.

Chemical Composition of A516 GR.70

Equivalent Material

Mechanical Requirements

The role of heat exchanger tube plates
The main functions of heat exchanger tube plates include fixing pipelines, achieving fluid diversion, enhancing heat transfer efficiency, separating different fluids, stabilizing medium properties, saving energy, guiding fluid flow, and fixing tube bundles.

Fix the pipeline:

The pipe plate fixes all pipes in their corresponding positions to ensure the stability and operational efficiency of the pipes.
Realize fluid diversion. The tube plate can guide the fluid separately to various pipelines or different flow zones, ensuring the smoothness and balance of fluid flow.

Enhance heat transfer efficiency:

The tube plate is supported and fixed, allowing the fluid to participate in the heat transfer process in a more complex way, thereby enhancing the heat transfer effect.

Separate different fluids:

The tube plate serves to separate these different fluids, such as separating steam and water, allowing for heat exchange between the two.

Stable medium properties:

The partition design of the tube plate can increase the modulus of the tube bundle, improve the distribution of the medium in the pipeline, increase the heat transfer area, and improve the heat transfer efficiency.

Save energy:

Tube plate heat exchangers have lower energy consumption and better energy-saving effects compared to traditional fixed plate heat exchangers.
Guide fluid flow. The flow channel design on the tube plate can guide the fluid to flow in the specified direction, enhancing heat exchange efficiency.

Fix the tube bundle:

The tube holes set on the tube plate can fix the tube bundle inside the heat exchanger, preventing tube bundle vibration and impact.

Introduction
SA516Gr70 belongs to the American standard boiler pressure vessel steel plate, and the SA516Gr70 index standard is ASTM ASME EN10028-2 special technical conditions.
SA516Gr70 not only has very high strength, but also has excellent toughness, wear resistance, fatigue resistance, impact resistance, welding workability, and cold forming performance. It is commonly used in the petrochemical container manufacturing industry, for example; Pressure vessel manufacturing, expansion joints, reactors, heat exchangers, petrochemical equipment, petroleum machinery, heads, boilers, power plant equipment, reaction vessels, spherical tanks, nitrogen tanks, gas cylinders, liquefied gas tanks, and other applications are quite common.
The SA516Gr70, due to its high quality performance, also meets the material selection requirements of the vast manufacturing industry. Its high strength, high toughness, and easy processing during use have been deeply recognized and loved by the manufacturing industry. Later, it gradually became one of the commonly used steel plate grades in China

SA516Gr70 delivery status
SA516Gr70 is default for hot rolling delivery and can be negotiated for technical processes such as normalizing, tempering, hot rolling, quenching, first probing, second probing, and third probing Z15, Z25, and Z35. Different delivery states will present different composition properties and applications. Therefore, when selecting delivery states, unified standards should be established based on the current usage situation.

Application scope
SA516Gr60/70 is widely used in industries such as petroleum, chemical, power plants, boilers, etc. It is used to make equipment and components such as reactors, heat exchangers, separators, spherical tanks, gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, liquefied petroleum gas cylinders, high-pressure water pipes for hydropower stations, turbine casings, etc