Low Finned Tube ASTM A179 Carbon Steel For Heat Exchanger In Refinary Industry

Low Finned Tube, ASTM A179 Carbon Steel, for Heat Exchanger in Refinary Industry

What is Low Finned Tube?

A low finned tube is a type of heat exchanger tube that has external finning. The fins increase the surface area of the tube, allowing for increased heat transfer between the tube and the surrounding fluid or gas. The fins on a low finned tube are smaller and closer together than on regular finned tubes, which results in a greater heat transfer coefficient. The low finned tubes are commonly used in applications where high heat transfer rates are required, such as in air coolers, refrigeration systems, condensers, and boilers.

What's the Main Functions or Advantages of Low Finned Tube in ASTM A179?

1. Increased Heat Transfer: The primary function of low finned tubes is to increase heat transfer efficiency. The external fins on the tube increase the surface area, which allows more heat to be transferred between the tube and the surrounding fluid.

2. Enhanced Performance: Low finned tubes provide improved heat transfer performance compared to standard bare tubes.

3. Energy-Efficiency: By increasing the heat transfer efficiency, low finned tubes help to reduce energy consumption and operating costs in various applications.

4. Reduced Fouling: The external fins on the low finned tube also help to reduce fouling by preventing build-up of dirt, debris, or other deposits on the tube surface.

5. Compact Design: Low finned tubes can be designed to achieve the desired heat transfer performance while still maintaining a compact footprint compared to bare tubes or other heat transfer solutions, making them ideal for applications with space constraints.

6. Versatility: Low finned tubes can be manufactured from a variety of materials, including ASTM A179, to suit specific application needs and requirements.

What's the Chemical Composition and Mechanical Properties of ASTM A179?

ASTM A179 have high thermal conductivity, excellent ductility, and good corrosion resistance.

Chemical Composition:

- Carbon (C): 0.06-0.18%

- Manganese (Mn): 0.27-0.63%

- Phosphorous (P): 0.035% max

- Sulfur (S): 0.035% max

Mechanical Properties:

- Tensile strength: 325 MPa (minimum)

- Yield strength: 180 MPa (minimum)

- Hardness: HRB 72 max

- Elongation: 35% min

What are the main applications of ASTM A179 low finned tubes?

ASTM A179 low finned tubes are widely used in various industrial applications, including:

1. Heat Exchangers: Low finned tubes are commonly used in heat exchangers where high heat transfer rates are necessary.

2. Air Cooler Systems: Low finned tubes can be used in air cooler systems for cooling the air and preventing excessive heat buildup.

3. Refrigeration Systems: Low finned tubes improve heat transfer efficiency in refrigeration systems, which helps to reduce energy consumption.

4. Condensers: Low finned tubes are used in condensers to increase heat transfer efficiency and reduce fouling.

5. Boilers: Low finned tubes can be used in boilers for waste heat recovery or to increase heat transfer efficiency.

6. Chemical Processing: Low finned tubes are used in chemical processing applications where heat transfer efficiency is crucial and chemical resistance is required.

7. Petrochemicals: Low finned tubes are used in petrochemical applications where high heat transfer rates are required for processing various chemicals and oils.

8. Power Generation: Low finned tubes are used in power generation equipment, such as turbines, condensers, and heat exchangers, where high heat transfer rates are necessary to maintain optimal performance.