If you are in the pipeline market, you will quickly realize that two main types are available: welded and seamless tubes and pipes. Both pipes have distinct usages. They are ideal for industries requiring pipelines for transporting fluids, gases, etc. Each type has advantages and disadvantages. Deciding which one to select can be intimidating if you do not have a clear idea.
We will explore the differences between seamless and welded pipes to help you make an informed decision.
Seamless tubes and pipes:
Manufacturers produce the pipes from a solid cylindrical billet, which they heat and stretch to form a seamless tube. This process, known as hot rolling, creates a pipe without seams or joints. You can use these pipes in high-pressure applications and industries that require high-quality, high-performance pipes.
Advantages of seamless pipes:
One of the principal advantages of stainless steel seamless pipes is their superior strength. Seamless pipes can withstand high pressure and temperature, making them ideal for industries like chemical processing, oil and gas, and power generation.
These pipes are also corrosion-resistant. It is an essential advantage in industries where you want to expose the pipes to harsh chemicals and environments.
Another advantage of the seamless tubing solutions is their smooth interior surface. There is no risk of leakage or obstruction as there are no joints or seams. It is a significant concern in welded pipes. Such a smooth interior also allows for better flow rates, making seamless tubes ideal for industries where fluid flow is critical.
Disadvantages of seamless pipes:
One of the most significant disadvantages of these pipes is their cost. As you know, seamless pipe manufacturers use solid billets and specialized equipment to produce these pipes. Hence, these pipes are more expensive than welded pipes. The high cost can restrict you from investing in the pipes for smaller projects or industries with tighter budgets.
Another disadvantage of the pipes is their limited size range. Seamless tubes are typically only available in smaller sizes. It can be problematic in industries requiring larger pipes. In addition, as engineers fabricate the pipes from a solid billet, they cannot modify the pipe’s size and shape.
However, many pipe producers are now using upgraded tools to customize the sizes of the pipes. Thus, they ensure you get the desired length of the pipes you require for your project.
Welded pipes:
Unlike stainless steel seamless pipes, manufacturers produce welded pipes by welding pieces of metal together. Welded pipe manufacturers employ different welding methods to produce welded pipes. These include electric resistance welding (ERW), submerged arc welding (SAW), and fusion welding.
Advantages of welded pipes:
One of the primary advantages of welded pipes is their cost. Welded pipe producers join pieces of metal together, which makes the pipes typically less expensive. Also, the pipes are ideal for smaller projects or industries with tighter budgets.
Another advantage of welded pipes is their customizability. You can easily modify welded pipes to meet your specific size and shape requirements. It makes welded pipes ideal for industries that require customized pipes, such as construction and engineering.
Disadvantages of welded pipes
The most significant disadvantage of welded pipes is their weaker strength. Since seamless pipe manufacturers do not weld any part of the pipes, seamless pipes are stronger. The welding process can create weak points in the pipe, leading to leaks and failures over time. It can be a significant concern in industries requiring high-performance pipes, such as chemical processing, oil and gas, and power generation.
Another disadvantage of welded pipes is their rough interior surface. Since engineers weld pieces of metal, the pipe has seams and joints. It can lead to obstructions and reduce the flow rates. These are serious concerns in industries where fluid flow is critical.
The final verdict:
Each type of pipe has its significance in various industries. You may choose welded pipes if you are not looking for an intense piping solution. In case of budget constraints, choosing welded pipes is your best option.
However, if you want the pipes to last long and offer robust support, durability, and reliability, you will have to invest a little more. Seamless tubes and pipes will cost you more than welded pipes. However, they will last much longer while offering a smooth fluid flow.
It boils down to you what your priorities are. Depending on your requirements, you can talk to a reputable pipe supplier to guide you.