Tag: alloy steel seamless tube

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What are the Applications of Finned Tubes in Industries?

By adminApr 15,2019

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Finned tubes are a series of tubes which have fins attached on its exteriors. This increases the contact area with the fluid which is outside the tube. This extended outer area augments the heat transfer rate. It also exchanges heat between the outside and inside the tube.

Inside of the tube is for the liquid to flow and the outside has air or some other gas. The main components of heat exchangers in any industry are Finned Tubes. Usually, crossflow happens here and this is due to the radial fins. If you want a counter-flow, use longitudinal fins instead.

In most of the cases, there is an open heat exchanger with the application of finned tubes for air flow. However, internal finned tubes can also be used in a closed heat exchanger.

Finned tubes are made by helically twisting strips on the tubes. They can be longitudinal, transverse, parallel, flat, round, oval, etc. For industrial purposes where the outside flow has to streamline with the tube length, the best finned tube is the one with longitudinal fins. On the other hand, for air coolers, crossflow exchangers, gas flows, shell and tube heat exchangers, or turbulent flows, you can use transverse finned tubes.

High-finned tubes are used to heat and cool down gases in heating, machinery, and plant technologies.

For evaporating and condensing refrigerants or when you have to control the temperature of liquids and gases, you can use low finned tubes. Then there are safety tubes which are also known as double-wall tubes. They have particular leakage paths to separate fluids.

Tubes applicable in oil coolers, condensers, water heaters, etc., are medium-high finned tubes. For specific applications with the best designs, stainless steel finned tubes can be used.

Finned Tubes

Other Application of Finned Tubes

 
Finned tubes are used to relay heat in any industry where hot fluid has to be transferred to cold fluid through a proper medium. They expand the exterior of the tube. Finned tubes have the capacity to take the place of bare tubes with reduced volume and cost.

One of the significant feature of finned tubes is to secure the surface area of heat exchanger tubes. Heat transfer is based on the outside area to which the fluid is exposed, temperature difference between the fluids, and the heat transfer between the tube and fluids.

Application of Finned Tubed in Industries

 

  • Petroleum Industry
  • Chemical industry
  • Wood industry
  • Food industry
  • Steel Industry
  • Plastic molding industry
  • Glycol dehydration units
  • Coils for hybrid cooling towers
  • Printing Machines
  • Production of surface coatings
  • Solvent recovery
  • Cooling of turbine air intakes
  • Textile production
  • Greenhouse heaters and breeding
  • Tanneries
  • Anti-freeze coils for process air
  • Paper works

Finned tubes heat exchangers can be applied in various household as well as industrial machineries. Car radiator also used finned tube heat exchangers which cools the hot water in the tubes when air passes through it. This is a crossflow process.

For industrial purposes, finned tube heat exchangers are generally used to heat or cool the air and other gases. Finned tubes have fins attached to its exterior areas. Hence, with the increase in the outside area, the heat transfer rate also increases. Moreover, in the long run, it abbreviates the overall equipment size.

If you are looking to purchase finned tubes for any of the above mentioned industrial applications, call us on +91-9099996851. Being one of the leading finned tubes manufacturers in India, we can help you get products as per your requirements. We also supply seamless tubes made of carbon steel and alloys.

Also Read: Why Does Oil & Gas Companies Use Finned Tubes?

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How Do Seamless Tubes Enhance the Business Production?

By adminDec 22,2018

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With great tensile strength and a solid round shape, you might have noticed these seamless tubes in many manufacturing units. Someone who is a novice to the workings of the manufacturing units may just find these tubes to be ordinary with no unique feature. These people also believe that these tubes are just pipes which are used to carry liquids or gasses from one place to another.

This blog is for them. Below we have mentioned a few ways the seamless pipes can enhance the business production with its unique qualities that definitely makes it different from the other ordinary pipes.

1. Can Withstand Strong Pressure

This is a very strong advantage of seamless pipes. They have a great ability to withstand strong pressure. This makes them far more durable than the welded pipes as they tend to have a weak point, their weld. Since the seamless pipe does not have a welded seam, there are no chances for it to have a breakdown. The whole circumference of the pipe is strong, with no weak points.

This quality makes it more costly than the normal pipes but can effectively enhance the business production. This ability can also help you to pick a thinner, less costly pipe which can allow you to cut down costs effectively.

2. Uniform Shape

Seamless tubes are a perfect round, how? Because there is no weld. Welding can induce stress and heat among other variables that can affect the shape of the pipe. As seamless pipes are free from a weld, they are of the perfect shape. None of the pipes can be as round as the seamless tube.

Seamless steel pipes have a round cross-section that is formed through the alloy’s continuous extrusion. This is a great advantage in installing and fittings.

3. Great Strength Even When Loaded

Seamless tubes are expensive than the normal steel pipes as we have mentioned earlier, but there is a reason for it. These tubes are highly reliable as they have great load bearing ability.

Any empty pipe can bear its load. The real strength is determined when they have to carry the load. Pipes filled with resources or materials not only have to support their own weight but also the weight of these resources and also carry them effectively from one place to another. Over time, the welded pipes can develop leaks and thus let the whole manufacturing unit come to a halt. This is not the case with seamless tubes, thus helping save the costs involved in the following two aspects:

  • Buying a new pipe.
  • The time lost due to failure and the effect of that time lost in the cost of production.

Sometimes, the latter can cost you more than the former. Thus, foresee these failures and select seamless tubes to run your production or manufacturing unit.

The benefits are endless but these three are the crucial ones that make the seamless tubes the most preferred tubes. There are many variants even among these tubes. The business owners or plant managers use alloy steel seamless tube and/or carbon steel seamless tube the most. Let your business have the same solution by getting these tubes. To get a seamless installation, contact Anand Seamless Ltd. Call us on +91-9099996851 or drop us a mail on inquiry@anandseamless.com to inquire more about our seamless tubes. Get in touch today!

Also Read:  Benefits and Uses of Alloy Steel and Cold Drawn Seamless Tubes

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The Manufacturing Process of Seamless Tubes

By adminDec 7,2018

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The people who have been in the business of manufacturing seamless tubes will be well aware of the primitive technology of rolling mill, used widely in the nineteenth century. This technique was used to produce seamless pipes and tubes to be used in industries. The whole procedure is long and included the following steps:

  • With the use of funnel rolls, rolled sheets are converted into a cross-sectional circle
  • Through the welding process, the lap welding was carried out on these cross-sectional circle

This all seems to have changed now, thankfully because of the advent of new technological advancements and developments. Due to this, many new processes have surfaced that makes the whole manufacturing process of seamless tubes, easy and cost-effective. But the most popular process that has caught on with many manufacturers in the process of continuous tube mill. No forge welding or filler metal is used in this new technique.

Seamless Tube Manufacturing Process

 

1. Preparing the stainless steel sheets

The stainless steel sheets undergo several checks before getting picked to roll. While preparing them, the first step is to trim them around the edges.

2. Rolling through rollers

The sheets are then passed through many rollers to match the required size. In this step, you can see the sheets progressing into tubular shapes.

3. Rollers Through the fitted welding machine

In this step, the tubular shape has to go through a fitted welding machine. The inside of these tubular shapes, i.e., the weld beads and scraps are removed, thus giving you perfectly rolled tubes.

4. Cleaning and heating of rolled seamless tubes

After the stainless sheets have a basic rolled structure, it goes through the process of cleaning and heating. This depends upon the clients’ requirements. The stainless steel tubes are cleaned thoroughly to remove dirt before the heating process begins. Heating is used to remove the possible stress on the seamless tubes and let it have a seamless shape. The tubular shape is rolled in a hot furnace that has temperature controllers and recorders. The heating process helps the tubes to be straightened and open to pickling and removing the scales from its surface.

5. The cold-drawing process

Many clients have a peculiar tube requirement that will not match the seamless tubes rolled out directly from the mills. For this reason, another process of cold-drawing is to be performed to achieve the desired size.

To manufacture cold-drawn seamless tubes, the manufacturer first coats the tube with soap and oxalic solution. The solution helps to reduce the friction caused due to this process, by acting as a lubricant. Later, the seamless tubes are benched with the help of Die plugs.

6. Final touches

The final touches include ink jet marking on the seamless tubes, that educates the exporters about the tube’s grade, material, heat number, size, and a third party inspection stamp. Followed right after this are several stringent quality checks and appropriate packaging, making these seamless tubes ready for dispatch.

There are several industries that need seamless tubes in different alloys to have varied tensile strength. Thus many manufacturers produce the alloy steel Seamless tube. The most popular among these alloy steel seamless tubes are a carbon steel seamless tube.

How Can You Improve the Seamless Tubes Manufacturing Process?

Manufacturing seamless tubes is a complex process that requires precision, efficiency, and adherence to strict quality standards. However, with the advent of advanced technologies, there are several ways to enhance the manufacturing process. Let’s explore some key strategies for improvement:

1. Automation and Robotics

Integrating automation and robotics into manufacturing can significantly improve efficiency and precision. Automated systems can handle material handling, tube shaping, welding, and quality control tasks. It can enhance productivity and ensure consistent quality by reducing manual labour and human error.

2. Quality Control Systems

Implementing robust quality control systems is essential for ensuring the integrity of seamless tubes. Advanced inspection technologies, such as automated optical inspection and non-destructive testing methods like ultrasonic or eddy current testing, can detect any tube flaws or defects. These systems enable manufacturers to promptly identify and address issues, improving overall quality and customer satisfaction.

3. Computer-Aided Design and Manufacturing (CAD/CAM)

CAD/CAM systems play a crucial role in seamless tube manufacturing. These software tools enable designers and engineers to create intricate designs and simulate manufacturing. By optimising the design and production parameters, CAD/CAM systems help minimise material waste and streamline production, resulting in improved efficiency and cost-effectiveness.

4. Precision Machining and Finishing

Advanced machining technologies, such as CNC (Computer Numerical Control) machining, allow for the precisely shaping and finishing seamless tubes. CNC machines offer high accuracy, repeatability, and the ability to produce complex tube geometries. This technology ensures tight tolerances, smooth surfaces, and excellent dimensional accuracy, meeting the stringent requirements of various industries.

5. Continuous Seamless Tube Mills

Continuous tube mills have revolutionised the seamless tube manufacturing industry. Unlike traditional methods that involve forging welding or filler metal, these mills eliminate the need for these processes. This technology allows for the continuous production of seamless pipes and tubes, resulting in higher productivity, reduced costs, and improved efficiency.

The Evolution of Seamless Tube Manufacturing Techniques

The manufacturing of seamless tubes has come a long way since the nineteenth century. Traditional techniques, such as rolling mills and lap welding, have been replaced by more advanced and efficient methods. Let’s explore the evolution of manufacturing techniques:

Introduction of Continuous Casting

Continuous casting is a significant development in seamless tube manufacturing. It involves the continuous pouring of molten metal into a water-cooled mould, which solidifies the metal into a continuous billet. This continuous casting process ensures better homogeneity and improved mechanical properties of the tubes.

Piercing and Extrusion

Piercing and extrusion are key processes in seamless tube manufacturing. Piercing involves making a hole in the solid billet, while extrusion uses a mandrel to shape the tube and reduce its diameter. These processes have evolved with advancements in tooling technology, resulting in improved accuracy and surface finish of the seamless tubes.

Development of Advanced Alloys

The evolution of seamless pipe manufacturing also includes the development of advanced alloys. High-performance alloys, such as stainless steel, duplex stainless steel, and nickel alloys, offer superior corrosion resistance, high-temperature strength, and other desirable properties. These alloys have expanded the application range of seamless tubes in various industries, including oil and gas, petrochemicals, and automotive.

Customization in Seamless Tube Manufacturing

The ability to meet diverse requirements is a crucial aspect of seamless tube manufacturing. Customisation plays a significant role in achieving this. Seamless pipes can be customised to meet specific customer requirements. This includes dimensions, tolerances, surface finish, and material composition variations. Manufacturers work closely with customers to understand their needs and deliver tailor-made tubes and pipes that precisely match their application requirements.

Frequently Asked Questions

 

Q: What are the advantages of using seamless tubes over welded tubes?

A: Seamless tubes offer several advantages over welded tubes. They have superior strength and durability due to the absence of welded joints. They also provide excellent resistance to corrosion and high-temperature environments. Moreover, their smooth internal surface minimises pressure loss and facilitates efficient fluid flow.

Q: Can seamless pipes be customised for specific applications?

A: Yes, pipes and tubes can be customised to meet specific application requirements. Manufacturers can adjust dimensions, tolerances, material composition, and surface finish based on customer needs. Customisation ensures that seamless tubes and pipes are optimised for their intended use and deliver optimal performance.

Q: What industries rely on seamless tubes?

A: Seamless tubes find applications in various industries, including oil and gas, petrochemicals, automotive, aerospace, power generation, and construction. They are commonly used for conveying fluids, gases, and steam in critical environments where reliability, strength, and corrosion resistance are paramount.

Q: What are the key quality control measures in tube manufacturing?

A: Quality control measures in seamless tube manufacturing include rigorous inspection of raw materials, in-process monitoring, dimensional checks, non-destructive testing methods (such as ultrasonic or eddy current testing), and visual inspection. These measures ensure seamless tubes meet the required specifications and adhere to stringent quality standards.

Q: How is the cold-drawing process beneficial for seamless tubes?

A: The cold-drawing process enhances the dimensional accuracy, mechanical properties, and surface finish of the tubes. It allows for precise size reduction, resulting in tubes with tight tolerances and improved strength. Additionally, cold drawing imparts a smooth surface finish, making the tubes suitable for various high-performance applications.

If you are confused as to which one will suit your business, then don’t be. Just call Anand Seamless Ltd and let us help you to have custom seamless tubes, ideal for your business. Call us at +91-9099996851 or drop us a mail on inquiry@anandseamless.com to know more about our seamless tubes. Get in touch now!

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Benefits and Uses of Alloy Steel and Cold Drawn Seamless Tubes

By adminApr 29,2017

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Transporting things from one place to another has always been a task in the manufacturing sector. It requires a lot of time and energy and also comprises the use of some high functioning equipment. This process is an important part of manufacturing a product as transportation is required everywhere. Solids are anyways easier to transport as they are wholesome and can be carried from one place to another. Liquids and gases on the other hand need special care and specific containers to avoid spilling or leaking. If not this may be a cause of great loss and can be harmful as well.

Helpful equipment for the purpose is the alloy steel seamless tube. These tubes are used in various places for the transportation of fluids.

Specialties and Importance of These Tubes Are:

 

  • These are tubes are tubes which don’t have a seam welded in them. They are joint to other pipes without having a welding joint. These pipes are highly used in industries where transfer of fluids is a major need and these serve for the purpose perfectly.
  • Having a seam is not a good sign for the pipe as these create a weakness in them. They increase the possibility of the pipe falling apart from the seam and thus seamless pipes offer more guarantee of security than the ones with seam.
  • Alloy steel seamless tubes can be made from several metals and also from alloys. This use of heavy metals increases the chance of security and gives great results.
  • These pipes are used in industries with the highest need of security. In industries where substances used are quite dangerous for human contact, these tubes are used to ensure security. Not having a seam makes them stronger and more reliable and also strong enough to take the heavy load that the industries put on them.

Important equipment can be cold drawn seamless tube which is very useful for the purpose too.

Specifications of These Pipes Are:

 

  • These are made from very high quality steel and give very good results for the tolerance and uniformity purposes.
  • These are cut into perfect lengths and are stock protected for the best results.
  • These require low machinery over the seamless tubes and have enhanced tolerance and uniformity capacities.
  • These have a surface finishing that is superior to most of the products of the same kind and gives the best dimensional accuracy. These tubes have a micro-structural uniformity of the best kind among all the tubes for the same purposes.
  • These have enhanced mechanical facilities provided to us for use. This enhancement is found only in these tubes and makes them multipurpose for use.
  • These tubes have high strength to weight ratio compared to other tubes.
  • These are used in rollers, hydraulic cylinders, trucks, automotive parts and structural apps.

So these are the basic details for the different types of tubes used for the transportation of fluids and industries.

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